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Complete List of Injectable Peptides: Categories, Uses & Dosing

Complete List of Injectable Peptides: Categories, Uses & Dosing

Dec 26, 2025

list of injectable peptides
list of injectable peptides

You've seen mentions of BPC-157, semaglutide, growth hormone peptides, and dozens of others, but you don't have an all in one reference showing all your options organized by category and purpose.

Here's what you need: a complete, organized list of injectable peptides broken down by category.

Healing peptides, muscle-building peptides, fat loss peptides, anti-aging peptides, cognitive enhancement, sexual health.

Each one with its primary uses, typical dosing, and what you need to know.

This guide provides exactly that - the most comprehensive injectable peptide list available, organized by function.

You'll see every major peptide in each category, understand what differentiates them, learn standard dosing protocols, and know which peptides work best for your specific goals.

Let's start with healing and recovery peptides - the most popular category.


Healing and injury recovery peptides

These peptides accelerate tissue repair, reduce inflammation, and heal injuries faster than natural recovery.

BPC-157 (Body Protection Compound)

Primary uses:

  • Tendon and ligament injuries

  • Muscle tears and strains

  • Gut healing (leaky gut, IBS, ulcers)

  • Joint pain and inflammation

  • Post-surgical recovery

Typical dosing:

  • Healing: 250-500mcg twice daily (500mcg-1mg total daily)

  • Maintenance: 250mcg once daily

  • Duration: 4-12 weeks depending on injury

Administration:

  • Subcutaneous injection near injury site OR systemically (abdomen)

  • Works both locally and systemically

Special notes:

  • One of the safest peptides available

  • Works for both acute and chronic injuries

  • No known significant side effects

  • Not FDA-approved (research chemical)

See our BPC-157 complete guide and use our BPC-157 dosage calculator for precise measurements.


TB-500 (Thymosin Beta-4)

Primary uses:

  • Deep tissue healing

  • Muscle recovery

  • Flexibility and range of motion

  • Chronic injuries

  • Hair growth (secondary benefit)

Typical dosing:

  • Loading phase: 5-10mg per week (split into 2-3 injections) for 4-6 weeks

  • Maintenance: 2-5mg per week

  • Duration: 8-16 weeks

Administration:

  • Subcutaneous or intramuscular

  • Can inject anywhere (doesn't need to be near injury)

Special notes:

  • Slower acting than BPC-157 but deeper healing

  • Excellent for tissue regeneration

  • Often stacked with BPC-157 for maximum healing

  • Banned by WADA for athletes

Learn more in our TB-500 guide and compare with our BPC-157 vs TB-500 analysis. Use our TB-500 dosage calculator.


KPV (Lysine-Proline-Valine)

Primary uses:

  • Inflammatory conditions

  • Gut inflammation (Crohn's, colitis)

  • Skin inflammation

  • Immune modulation

Typical dosing:

  • Injectable: 500-1,000mcg daily

  • Duration: 4-12 weeks

Administration:

  • Subcutaneous injection

  • Also available as oral and nasal spray

Special notes:

  • Powerful anti-inflammatory

  • Minimal side effects

  • Useful for autoimmune conditions

  • Less commonly used than BPC-157/TB-500


GHK-Cu (Copper Peptide)

Primary uses:

  • Wound healing

  • Skin regeneration

  • Hair growth

  • Anti-inflammatory effects

  • Tissue repair

Typical dosing:

  • Injectable: 1-2mg, 3-5 times per week

  • Intranasal: 2-3mg daily (alternative to injection)

  • Duration: Ongoing for anti-aging benefits

Administration:

  • Subcutaneous injection

  • Intranasal spray (alternative delivery)

Special notes:

  • Strong evidence for tissue regeneration

  • Also used topically for skin (different from injectable)

  • Well-tolerated with minimal side effects

See our copper peptides guide for complete information.


Growth hormone and muscle building peptides

These stimulate growth hormone production or enhance muscle protein synthesis.

CJC-1295 (with or without DAC)

Primary uses:

  • Muscle growth

  • Fat loss (body recomposition)

  • Anti-aging

  • Sleep quality

  • Recovery enhancement

Typical dosing:

  • Without DAC: 200-300mcg before bed, 5-7 days per week

  • With DAC: 1-2mg once or twice weekly

  • Duration: 3-6 months minimum for significant results

Administration:

  • Subcutaneous injection

  • Typically paired with GHRP (Ipamorelin, GHRP-6, etc.)

Special notes:

  • Increases endogenous growth hormone production

  • "No DAC" version more commonly used

  • Works synergistically with other GHRPs

  • Long-term safety profile good

Use our CJC-1295 dosage calculator for precise dosing.


Ipamorelin

Primary uses:

  • Growth hormone release

  • Muscle growth

  • Fat loss

  • Sleep quality

  • Anti-aging

Typical dosing:

  • 200-300mcg before bed, 5-7 days per week

  • Often stacked with CJC-1295

  • Duration: 3-6 months minimum

Administration:

  • Subcutaneous injection

Special notes:

  • Cleanest GHRP (minimal side effects)

  • No increase in prolactin or cortisol

  • Excellent sleep enhancement

  • Mild hunger increase (less than GHRP-6)

See our Ipamorelin vs CJC-1295 comparison for stacking strategies.


GHRP-6 (Growth Hormone Releasing Peptide-6)

Primary uses:

  • Muscle growth

  • Growth hormone release

  • Appetite stimulation

  • Injury healing

Typical dosing:

  • 100-300mcg, 2-3 times daily

  • Best on empty stomach

  • Duration: 3-6 months

Administration:

  • Subcutaneous injection

Special notes:

  • Strong appetite increase (pro or con depending on goals)

  • Powerful GH release

  • Can increase prolactin (monitor for gynecomastia)

  • Older peptide, still effective


GHRP-2

Primary uses:

  • Growth hormone release

  • Muscle growth

  • Fat loss

Typical dosing:

  • 100-300mcg, 2-3 times daily

  • Duration: 3-6 months

Administration:

  • Subcutaneous injection

Special notes:

  • Similar to GHRP-6 but less hunger

  • Still some prolactin increase

  • Good middle-ground between GHRP-6 and Ipamorelin


IGF-1 LR3 (Insulin-like Growth Factor)

Primary uses:

  • Muscle growth (most anabolic peptide)

  • Muscle recovery

  • Body recomposition

  • Nutrient partitioning

Typical dosing:

  • 40-80mcg daily

  • 4-6 week cycles

  • Duration: Cycles with breaks (not continuous)

Administration:

  • Subcutaneous or intramuscular injection

Special notes:

  • Very powerful for muscle growth

  • Requires cycling (not for long-term use)

  • Risk of hypoglycemia (carry fast carbs)

  • Advanced peptide (not for beginners)


Hexarelin

Primary uses:

  • Powerful GH release

  • Muscle growth

  • Appetite stimulation

Typical dosing:

  • 100-200mcg, 2-3 times daily

  • Duration: 4-8 weeks, then break (desensitization occurs)

Administration:

  • Subcutaneous injection

Special notes:

  • Most powerful GHRP

  • Significant hunger increase

  • Desensitization with continuous use (need breaks)

  • Increases prolactin and cortisol more than other GHRPs

Learn complete muscle protocols in our best peptides for muscle growth guide.


Fat loss and weight management peptides

These peptides enhance fat metabolism or suppress appetite.

Semaglutide (Ozempic/Wegovy)

Primary uses:

  • Weight loss

  • Appetite suppression

  • Type 2 diabetes management

  • Cardiovascular health

Typical dosing:

  • Week 1-4: 0.25mg once weekly

  • Week 5-8: 0.5mg once weekly

  • Week 9-12: 1mg once weekly

  • Week 13-16: 1.7mg once weekly

  • Week 17+: 2.4mg once weekly (max)

Administration:

  • Subcutaneous injection, once weekly

Special notes:

  • FDA-approved for obesity

  • Most effective weight loss peptide

  • Dramatic appetite suppression

  • Common side effects: nausea, constipation

See our semaglutide vs tirzepatide guide and use our semaglutide dosage calculator.


Tirzepatide (Mounjaro/Zepbound)

Primary uses:

  • Weight loss (more effective than semaglutide)

  • Type 2 diabetes

  • Appetite control

Typical dosing:

  • Week 1-4: 2.5mg once weekly

  • Week 5-8: 5mg once weekly

  • Week 9-12: 7.5mg once weekly

  • Week 13-16: 10mg once weekly

  • Week 17-20: 12.5mg once weekly

  • Week 21+: 15mg once weekly (max)

Administration:

  • Subcutaneous injection, once weekly

Special notes:

  • Dual GLP-1/GIP agonist

  • Slightly better weight loss than semaglutide

  • FDA-approved

  • Similar side effects to semaglutide


AOD 9604 (Fragment 176-191)

Primary uses:

  • Fat loss (especially stubborn fat)

  • No appetite suppression

  • Body recomposition

Typical dosing:

  • 300-600mcg daily

  • Fasted morning injection preferred

  • Duration: 12-16 weeks

Administration:

  • Subcutaneous injection

Special notes:

  • Fragment of growth hormone (fat-burning portion only)

  • No effect on blood sugar or insulin

  • Targets stubborn fat areas

  • Good for athletes who can't suppress appetite

Learn more in our AOD 9604 guide and HGH Fragment calculator.


Tesamorelin

Primary uses:

  • Visceral (belly) fat reduction

  • HIV-associated lipodystrophy

  • Metabolic health

Typical dosing:

  • 1-2mg daily

  • Duration: Ongoing for sustained benefits

Administration:

  • Subcutaneous injection

Special notes:

  • FDA-approved for HIV lipodystrophy

  • Specifically targets visceral fat around organs

  • Doesn't affect subcutaneous fat as much

  • Excellent for metabolic syndrome

See our peptides for weight loss guide for complete fat loss protocols.


Anti-aging and longevity peptides

These peptides combat aging at cellular level.

Epithalon (Epitalon)

Primary uses:

  • Longevity

  • Telomere lengthening

  • Sleep regulation (melatonin)

  • Anti-aging

Typical dosing:

  • 10mg per cycle

  • 1mg daily for 10 days

  • Cycles: Every 3-6 months

Administration:

  • Subcutaneous injection

Special notes:

  • Strong evidence for telomere lengthening

  • Used in anti-aging protocols

  • Well-tolerated

  • Improves sleep regulation (pineal gland function)


Thymosin Alpha-1

Primary uses:

  • Immune system optimization

  • Anti-viral effects

  • Longevity

  • Chronic illness support

Typical dosing:

  • 0.5-1mg, 2-3 times per week

  • Duration: Ongoing or cycles

Administration:

  • Subcutaneous injection

Special notes:

  • Powerful immune modulator

  • FDA-approved for hepatitis (Zadaxin)

  • Well-studied safety profile

  • Used in longevity protocols


Selank

Primary uses:

  • Anxiety reduction

  • Cognitive enhancement

  • Immune modulation

  • Neuroprotection

Typical dosing:

  • 250-500mcg daily

  • Injectable or intranasal

  • Duration: 2-4 weeks, then break

Administration:

  • Subcutaneous injection or intranasal spray

Special notes:

  • Developed in Russia

  • Anxiolytic without sedation

  • Improves focus and mental clarity

  • No dependence or withdrawal


Semax

Primary uses:

  • Cognitive enhancement

  • Focus and concentration

  • Neuroprotection

  • Stroke recovery

Typical dosing:

  • 300-600mcg daily

  • Injectable or intranasal

  • Duration: 2-4 weeks, then break

Administration:

  • Subcutaneous injection or intranasal spray

Special notes:

  • Powerful nootropic

  • Increases BDNF (brain-derived neurotrophic factor)

  • Improves learning and memory

  • Developed in Russia


Sexual health peptides

These enhance libido, arousal, and sexual function.

PT-141 (Bremelanotide/Vyleesi)

Primary uses:

  • Female sexual dysfunction (FDA-approved)

  • Male erectile dysfunction

  • Libido enhancement for both sexes

Typical dosing:

  • 1-2mg, 45-90 minutes before sexual activity

  • Use as needed (not daily)

Administration:

  • Subcutaneous injection

Special notes:

  • Works through CNS (brain), not vascular system

  • FDA-approved for female sexual dysfunction

  • Effective for both men and women

  • Side effects: nausea (common but temporary), flushing


Melanotan II

Primary uses:

  • Tanning (primary)

  • Libido enhancement (secondary)

  • Appetite suppression

Typical dosing:

  • 0.5-1mg, 2-3 times per week

  • Duration: Ongoing for tanning maintenance

Administration:

  • Subcutaneous injection

Special notes:

  • Causes significant skin darkening (permanent)

  • Increases libido as side effect

  • Nausea common initially

  • Safety concerns about long-term use


Kisspeptin

Primary uses:

  • Natural testosterone support

  • Fertility enhancement

  • Libido increase

Typical dosing:

  • 1-2mg, 2-3 times per week

  • Duration: Ongoing for hormonal support

Administration:

  • Subcutaneous injection

Special notes:

  • Stimulates GnRH (gonadotropin-releasing hormone)

  • Can increase natural testosterone 15-30%

  • Useful for fertility issues

  • Research-stage peptide

See our peptides for men guide for male sexual health protocols.


Cognitive and neurological peptides

These enhance brain function, mood, and neuroprotection.

Cerebrolysin

Primary uses:

  • Stroke recovery

  • Traumatic brain injury

  • Dementia and Alzheimer's support

  • Cognitive enhancement

Typical dosing:

  • 5-10ml daily or every other day

  • Duration: 10-30 injections per course

Administration:

  • Intramuscular injection (preferred) or slow IV infusion

Special notes:

  • Mixture of neuropeptides from porcine brain

  • Used clinically in Europe and Asia

  • Strong evidence for neurological recovery

  • Prescription medication in many countries


Dihexa

Primary uses:

  • Cognitive enhancement

  • Memory improvement

  • Potential Alzheimer's treatment

Typical dosing:

  • 5-10mg daily

  • Injectable or oral (both available)

  • Duration: Cycles of 4-8 weeks

Administration:

  • Subcutaneous injection or oral

Special notes:

  • Extremely powerful nootropic (7 orders of magnitude more potent than BDNF)

  • Research stage (not FDA-approved)

  • Limited human data

  • Use with caution


N-Acetyl Semax Amidate

Primary uses:

  • Advanced cognitive enhancement

  • Neuroprotection

  • Focus and mental clarity

Typical dosing:

  • 300-600mcg daily

  • Intranasal or injectable

  • Duration: 2-4 weeks, then break

Administration:

  • Intranasal spray (preferred) or subcutaneous

Special notes:

  • More potent than regular Semax

  • Longer-lasting effects

  • Excellent for demanding cognitive work


Skin and cosmetic peptides (injectable)

These improve skin quality beyond topical application.

GHK-Cu (systemic)

Already covered in healing section, but worth noting for skin:

  • Improves skin quality throughout body

  • Hair growth and thickness

  • Anti-aging effects

  • Better results than topical for some people


Melanotan I (Afamelanotide)

Primary uses:

  • Tanning without sun exposure

  • Protection against UV damage

  • Erythropoietic protoporphyria treatment

Typical dosing:

  • 0.5-1mg daily until desired tan achieved

  • Then 0.5-1mg 2-3x weekly for maintenance

Administration:

  • Subcutaneous injection

Special notes:

  • Safer than Melanotan II (no libido/nausea effects)

  • FDA-approved for EPP (rare condition)

  • Causes gradual tanning

  • Permanent skin darkening with continued use


Specialty and niche peptides

Less common but valuable for specific purposes.

Gonadorelin (GnRH)

Primary uses:

  • Testosterone support

  • Fertility enhancement

  • Maintaining testicular function during TRT

Typical dosing:

  • 100-200mcg, 2-3 times daily (pulsatile dosing)

  • Duration: Ongoing alongside TRT if used for that purpose

Administration:

  • Subcutaneous injection

Special notes:

  • Requires frequent dosing (mimics natural GnRH pulses)

  • Maintains natural hormone production

  • Used in fertility treatments


HCG (Human Chorionic Gonadotropin)

Primary uses:

  • Testosterone support

  • Fertility (both male and female)

  • Maintaining testicular size during TRT

  • Weight loss (controversial)

Typical dosing:

  • 250-500 IU, 2-3 times per week

  • Duration: Depends on purpose

Administration:

  • Subcutaneous or intramuscular injection

Special notes:

  • Prescription medication

  • Mimics LH (luteinizing hormone)

  • Well-established safety profile

  • Banned by WADA


DSIP (Delta Sleep-Inducing Peptide)

Primary uses:

  • Sleep quality

  • Stress reduction

  • Pain management

Typical dosing:

  • 100-300mcg before bed

  • Duration: As needed for sleep support

Administration:

  • Subcutaneous injection

Special notes:

  • Mixed evidence for effectiveness

  • Some users report excellent sleep

  • Others notice minimal effects

  • Very safe with no dependence


Vasoactive Intestinal Peptide (VIP)

Primary uses:

  • Mold toxicity treatment

  • Immune regulation

  • Inflammatory conditions

Typical dosing:

  • 50mcg, 4 times daily

  • Intranasal spray

  • Duration: 4-12 months for mold illness

Administration:

  • Intranasal spray (not injectable typically)

Special notes:

  • Specialized use for biotoxin illness

  • Prescribed by mold-literate physicians

  • Expensive

  • Requires proper diagnosis

injectable peptides list

How to choose the right injectable peptide

With so many options, selection requires strategy.

Step 1: Define your primary goal

Ask yourself:

  • What's my #1 objective? (healing, muscle, fat loss, anti-aging, etc.)

  • Is this acute (injury) or ongoing (body composition, longevity)?

  • What timeline am I working with?

Match goal to category:

  • Injury = Healing peptides

  • Build muscle = Growth hormone peptides

  • Lose fat = Fat loss peptides

  • Look younger = Anti-aging + skin peptides

  • Better sex = Sexual health peptides

  • Sharper mind = Cognitive peptides


Step 2: Consider your experience level

Beginners start with:

  • BPC-157 (healing)

  • CJC-1295/Ipamorelin (muscle/anti-aging)

  • Semaglutide (fat loss, if you can get prescription)

Intermediate users can add:

  • TB-500 (healing)

  • AOD 9604 (fat loss)

  • PT-141 (sexual health)

Advanced users explore:

  • IGF-1 LR3 (muscle)

  • Multiple peptide stacks

  • Specialty peptides for specific conditions


Step 3: Evaluate safety profile

Safest peptides (extensive use, minimal sides):

  • BPC-157

  • TB-500

  • CJC-1295

  • Ipamorelin

  • GHK-Cu

Use with caution (more sides or less data):

  • GHRP-6 (prolactin increase)

  • Hexarelin (desensitization, cortisol)

  • IGF-1 LR3 (hypoglycemia risk)

  • Melanotan II (permanent tanning, nausea)


Step 4: Consider practical factors

Injection frequency:

  • Once weekly: Semaglutide, Tirzepatide

  • Daily: AOD 9604, Epithalon (during cycles)

  • Twice daily: BPC-157, KPV

  • 2-3x daily: GHRP-6, GHRP-2

Choose based on your compliance: If you won't inject 3x daily consistently, pick different peptide.

Cost considerations:

  • Expensive: Semaglutide, Tirzepatide, Cerebrolysin

  • Moderate: TB-500, CJC-1295/Ipamorelin

  • Affordable: BPC-157, Melanotan II

Use our peptide cost calculator to budget properly.


Step 5: Stack strategically (if combining)

Synergistic stacks:

  • BPC-157 + TB-500 (healing)

  • CJC-1295 + Ipamorelin (muscle/anti-aging)

  • Semaglutide + CJC/Ipa (fat loss with muscle preservation)

  • Semax + Selank (cognitive + anxiety)

Avoid redundancy:

  • Don't stack multiple GHRPs (Ipamorelin + GHRP-6 + Hexarelin = unnecessary)

  • Don't stack multiple GLP-1s (Semaglutide + Tirzepatide = no added benefit)

See our peptide stacks guide for complete protocols.


Injection best practices for all peptides

Regardless of which peptide you choose, proper injection technique matters.

Subcutaneous injection (most peptides)

Best sites:

  • Abdomen (2+ inches from navel)

  • Thighs (outer)

  • Love handles

  • Back of arms (harder to reach)

Technique:

  1. Clean injection site with alcohol

  2. Pinch skin to create fold

  3. Insert needle at 45-90 degree angle

  4. Inject slowly (2-3 seconds)

  5. Remove needle, apply pressure


Intramuscular injection (some peptides)

Best sites:

  • Glutes (upper outer quadrant)

  • Thighs (vastus lateralis)

  • Deltoids (shoulders)

Technique:

  1. Clean injection site

  2. Insert needle at 90 degrees (deeper than SubQ)

  3. Aspirate (pull back plunger slightly to check for blood)

  4. Inject slowly

  5. Remove and apply pressure


Rotation and site management

Rotate injection sites:

  • Never use same spot twice in one week

  • Have 8-10 sites in rotation

  • Track sites if injecting multiple times daily

Avoid:

  • Injecting into scar tissue

  • Sites with visible inflammation

  • Areas with lumps from previous injections

Learn complete technique in our peptide injections guide.


Reconstitution and storage

Reconstitution:

  • Use bacteriostatic water (0.9% benzyl alcohol)

  • Calculate properly based on vial size

  • Inject water slowly down side of vial (don't spray directly on powder)

  • Swirl gently, don't shake

Storage after reconstitution:

  • Refrigerate at 2-8°C (36-46°F)

  • Protect from light

  • Use within 28-30 days for most peptides

  • Discard if cloudy or discolored

See our peptide reconstitution calculator for exact measurements and our how to reconstitute peptides guide for step-by-step instructions.


Safety considerations across all injectable peptides

General safety principles apply regardless of which peptide you use.

Start low, go slow

For any new peptide:

  • Start at lowest effective dose

  • Assess tolerance for 1-2 weeks

  • Increase gradually if needed

  • Don't rush to maximum dose

Example progression:

  • BPC-157: Start 250mcg 2x daily, can increase to 500mcg 2x daily if needed

  • CJC/Ipa: Start 200mcg each, can increase to 300mcg if no sides


Monitor for side effects

Common across peptides:

  • Injection site reactions (redness, swelling)

  • Headaches (especially GH peptides initially)

  • Water retention (GH peptides, GLP-1s)

  • Nausea (GLP-1s, Melanotan II)

When to stop:

  • Severe allergic reaction (hives, difficulty breathing)

  • Persistent severe side effects

  • Unexplained symptoms

  • Lack of improvement after reasonable trial


Get baseline and follow-up bloodwork

Before starting peptides:

  • Basic metabolic panel

  • Liver and kidney function

  • Thyroid panel

  • Relevant hormones (testosterone, IGF-1, etc.)

During use:

  • Follow-up testing every 3-4 months

  • Monitor markers relevant to your peptides

  • Adjust protocols based on results


Legal and regulatory awareness

Understand status:

  • FDA-approved peptides require prescription

  • Research peptides are gray area (legal to possess, not approved for human use)

  • Athletic drug testing includes most peptides (WADA banned)

See our are peptides legal guide for complete regulatory information.


Source quality products

Only use peptides with:

  • Third-party testing (Certificate of Analysis)


95% purity (ideally 98%+)

  • Proper storage and shipping (cold chain)

  • Reputable supplier

See our best peptide vendors guide for sourcing quality peptides.


Complete injectable peptides comparison table

Here's every peptide covered in this guide organized in one comprehensive reference table.

Healing and Recovery Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

BPC-157

Tendon/gut healing

250-500mcg

2x daily

4-12 weeks

Beginner

Excellent

TB-500

Deep tissue repair

5-10mg loading, 2-5mg maintenance

Weekly

8-16 weeks

Beginner

Excellent

KPV

Inflammation/gut

500-1,000mcg

Daily

4-12 weeks

Intermediate

Excellent

GHK-Cu

Tissue regeneration/hair

1-2mg

3-5x weekly

Ongoing

Beginner

Excellent


Growth Hormone and Muscle Building Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

CJC-1295 (no DAC)

GH release/muscle

200-300mcg

Daily (before bed)

3-6 months

Beginner

Excellent

CJC-1295 (with DAC)

GH release/muscle

1-2mg

1-2x weekly

3-6 months

Intermediate

Very Good

Ipamorelin

GH release/sleep

200-300mcg

Daily (before bed)

3-6 months

Beginner

Excellent

GHRP-6

GH release/appetite

100-300mcg

2-3x daily

3-6 months

Intermediate

Good

GHRP-2

GH release

100-300mcg

2-3x daily

3-6 months

Intermediate

Good

IGF-1 LR3

Muscle growth

40-80mcg

Daily

4-6 week cycles

Advanced

Moderate

Hexarelin

Powerful GH release

100-200mcg

2-3x daily

4-8 weeks (cycles)

Advanced

Moderate


Fat Loss and Weight Management Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

Semaglutide

Weight loss/appetite

0.25-2.4mg (titrate up)

Weekly

6-12 months

Beginner

Very Good

Tirzepatide

Weight loss (more effective)

2.5-15mg (titrate up)

Weekly

6-12 months

Beginner

Very Good

AOD 9604

Fat loss (no appetite suppression)

300-600mcg

Daily (fasted)

12-16 weeks

Beginner

Excellent

Tesamorelin

Visceral fat reduction

1-2mg

Daily

Ongoing

Intermediate

Very Good


Anti-Aging and Longevity Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

Epithalon

Telomere lengthening/longevity

1mg

Daily for 10 days

Quarterly cycles

Intermediate

Excellent

Thymosin Alpha-1

Immune optimization

0.5-1mg

2-3x weekly

Ongoing/cycles

Intermediate

Excellent

Selank

Anxiety/cognitive

250-500mcg

Daily

2-4 weeks (break)

Intermediate

Excellent

Semax

Cognitive enhancement

300-600mcg

Daily

2-4 weeks (break)

Intermediate

Excellent


Sexual Health Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

PT-141

Libido/sexual function

1-2mg

As needed (45-90 min before)

On-demand

Beginner

Very Good

Melanotan II

Tanning/libido

0.5-1mg

2-3x weekly

Ongoing

Intermediate

Moderate

Kisspeptin

Testosterone/fertility

1-2mg

2-3x weekly

Ongoing

Intermediate

Good


Cognitive and Neurological Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

Cerebrolysin

Brain injury/dementia

5-10ml

Daily or every other day

10-30 injections

Advanced

Very Good

Dihexa

Powerful nootropic

5-10mg

Daily

4-8 week cycles

Advanced

Limited data

N-Acetyl Semax Amidate

Advanced cognitive

300-600mcg

Daily

2-4 weeks (break)

Intermediate

Excellent


Specialty Peptides

Peptide

Primary Use

Typical Dose

Frequency

Duration

Difficulty

Safety

Gonadorelin

Testosterone/fertility

100-200mcg

2-3x daily

Ongoing

Advanced

Very Good

HCG

Testosterone/fertility

250-500 IU

2-3x weekly

Varies

Intermediate

Excellent

DSIP

Sleep quality

100-300mcg

Before bed as needed

As needed

Beginner

Excellent

Melanotan I

Safe tanning

0.5-1mg

Daily (loading), 2-3x weekly (maintenance)

Ongoing

Intermediate

Very Good


Quick Reference Key

Difficulty Levels:

  • Beginner: Safe, simple dosing, minimal sides, well-tolerated

  • Intermediate: More complex dosing or some side effects to manage

  • Advanced: Requires experience, careful monitoring, or cycling

Safety Ratings:

  • Excellent: Extensive use, minimal side effects, well-studied

  • Very Good: Generally safe, some manageable side effects

  • Good: Safe when used properly, requires monitoring

  • Moderate: More significant side effects possible, use with caution

  • Limited data: Newer peptides, less human research available

Dosing Notes:

  • All doses are for subcutaneous injection unless noted

  • "Daily" typically means once daily unless specified

  • "Weekly" means once per week

  • Titration protocols (semaglutide, tirzepatide) start low and increase over weeks


How to use this table

Step 1: Find your category

  • Locate the category matching your primary goal (healing, muscle, fat loss, etc.)

Step 2: Compare options within category

  • Look at difficulty level (match your experience)

  • Check frequency (can you commit to 3x daily injections?)

  • Review duration (short cycles vs ongoing protocols)

Step 3: Cross-reference with detailed sections

  • Use table for quick overview

  • Read full peptide section above for complete information

  • Check our specific peptide guides for protocols

Step 4: Plan your protocol

  • Single peptide for beginners

  • Stack 2-3 synergistic peptides for advanced users

  • Use our calculators for exact dosing

This table gives you the complete injectable peptide landscape at a glance. Bookmark this page for quick reference when planning protocols.


The role of SeekPeptides in your injectable peptide journey

Navigating 100+ injectable peptides requires organization, accurate information, and proper tools. SeekPeptides provides everything you need.

Comprehensive guides: From BPC-157 to semaglutide, we provide detailed information on every major peptide.

Accurate calculators: Our peptide-specific calculators like BPC-157, TB-500, CJC-1295, and semaglutide ensure precise dosing.

Protocol planning: Our cycle planning guide and stacks guide help you combine peptides effectively.

Safety resources: From injection technique to safety and risks, we prioritize your wellbeing.

Complete education: Whether you're getting started or optimizing advanced protocols, we provide the knowledge you need.

You don't have to navigate 100+ injectable peptides alone. Use resources designed to help you choose wisely, dose accurately, and achieve your goals safely.


Final thoughts

The world of injectable peptides is vast.

Over 100 compounds available, each with specific uses, dosing protocols, and considerations.

This complete list organized by category gives you the reference you need. Healing peptides for injuries. Growth hormone peptides for muscle and anti-aging. Fat loss peptides for body composition. Cognitive peptides for mental performance. Sexual health peptides for intimacy. Specialty peptides for unique situations.

Choose based on your primary goal. Start with well-established, safe peptides. Use proper injection technique. Source quality products. Monitor your progress and adjust.

The right injectable peptide protocol can transform your health, performance, and quality of life. This comprehensive list ensures you choose wisely.

Your peptide journey starts with knowing your options. Now you have the complete list.


Helpful calculators for injectable peptides


Related guides worth reading


In case I don’t see you, good afternoon, good evening, and good night. Use SeekPeptides

  • peptdies
    peptdies

    "I had struggled with acne for years and nothing worked. Was skeptical about peptides but decided to try the skin healing protocol SeekPeptides built for me. Within 6 weeks I noticed a huge difference, and by week 10 my skin was completely transformed. OMG, I still can't believe how clear it is now. Changed my life. Thanks."

    "I had struggled with acne for years and nothing worked. Was skeptical about peptides but decided to try the skin healing protocol SeekPeptides built for me. Within 6 weeks I noticed a huge difference, and by week 10 my skin was completely transformed. OMG, I still can't believe how clear it is now. Changed my life. Thanks."

    — Emma S.

    • verified customer

  • peptides
    peptides

    “Used to buy peptides and hope for the best. Now I have a roadmap and I'm finally seeing results, lost 53 lbs so far.”

    — Marcus T.

    • verified customer

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    peptides

    "I'm 52 and was starting to look exhausted all the time, dark circles, fine lines, just tired. Started my longevity protocol 3 months ago and people keep asking if I got work done. I just feel like myself again."

    — Jennifer K.

    • verified customer

peptdies

"I had struggled with acne for years and nothing worked. Was skeptical about peptides but decided to try the skin healing protocol SeekPeptides built for me. Within 6 weeks I noticed a huge difference, and by week 10 my skin was completely transformed. OMG, I still can't believe how clear it is now. Changed my life. Thanks."

— Emma S.

  • verified customer

peptides

“Used to buy peptides and hope for the best. Now I have a roadmap and I'm finally seeing results, lost 53 lbs so far.”

— Marcus T.

  • verified customer

peptides

"I'm 52 and was starting to look exhausted all the time, dark circles, fine lines, just tired. Started my longevity protocol 3 months ago and people keep asking if I got work done. I just feel like myself again."

— Jennifer K.

  • verified customer

Ready to optimize your peptide use?

Ready to optimize your peptide use?

Know you're doing it safely, save hundreds on wrong peptides, and finally see the results you've been working for

Know you're doing it safely, save hundreds on wrong peptides, and finally see the results you've been working for