The complete peptide directory AOD-9604 (Anti-Obesity Drug) Primary function : Fat burning peptide that mimics growth hormone's fat-loss effects without affecting blood sugar Main uses: Targeted fat loss (especially stubborn areas) Metabolic enhancement Body recomposition without muscle loss Alternative to full GH protocols Typical dose : 300-600mcg injected subcutaneously daily, preferably fasted Best for : People wanting fat loss benefits of GH without full GH protocol, those with insulin sensitivity concerns Duration : 12-16 weeks for significant results Learn more : Best peptides for weight loss BPC-157 (Body Protection Compound) Primary function : Accelerates healing of muscles, tendons, ligaments, and gut tissue through angiogenesis and cellular repair Main uses: Injury recovery (sports injuries, surgical recovery) Tendon and ligament healing Gut health (leaky gut, IBS, gastritis) Joint pain relief Injury prevention during heavy training Typical dose : 250-500mcg injected subcutaneously 1-2x daily, or oral for gut issues Best for : Athletes with injuries, anyone with chronic gut issues, people wanting faster recovery Duration : 8-12 weeks for most injuries, can use longer for chronic conditions Learn more : BPC-157 complete guide Bremelanotide (PT-141) Primary function : Activates desire pathways in the brain to restore sexual arousal and libido Main uses: Low libido (especially in women post-menopause) Sexual dysfunction not responsive to other treatments Desire issues (not mechanical issues) Typical dose : 0.5-2mg injected subcutaneously 2-3 hours before desired effect Best for : Women with menopause-related libido loss, people with desire issues where other approaches failed Duration : Use as needed (not daily protocol), 1-3x weekly typical Learn more : Peptides for women CJC-1295 (with or without DAC) Primary function : Extends growth hormone release for sustained elevated GH levels Main uses: Muscle building and body recomposition Anti-aging (paired with Ipamorelin) Enhanced recovery Improved sleep quality Fat loss while preserving muscle Typical dose : 1-2mg injected subcutaneously 2x weekly (commonly Monday/Thursday) Best for : People wanting sustained GH elevation, those stacking with Ipamorelin for comprehensive GH optimization Duration : 12-24 weeks minimum, can use long-term Learn more : Ipamorelin vs CJC-1295 and CJC-1295 calculator DSIP (Delta Sleep-Inducing Peptide) Primary function : Promotes deep sleep and may help regulate sleep patterns Main uses: Sleep quality improvement Insomnia treatment Stress reduction Recovery enhancement through better sleep Typical dose : 100-300mcg injected before bed Best for : People with sleep disorders, athletes needing better recovery through sleep optimization Duration : Use as needed or 4-8 week protocols Note : Less commonly used than other peptides, mixed results reported Epithalon (Epitalon) Primary function : May extend telomeres and activate telomerase for potential longevity benefits Main uses: Longevity and anti-aging Cellular health optimization Potential lifespan extension Circadian rhythm regulation Typical dose : 5-10mg total over 10-20 days, cycled 2-4x yearly Best for : Biohackers focused on longevity, people interested in cutting-edge anti-aging Duration : Short intensive cycles (10-20 days) repeated periodically Note : Expensive, experimental, limited human data but intriguing animal studies Follistatin Primary function : Inhibits myostatin (muscle growth inhibitor) to allow enhanced muscle development Main uses: Extreme muscle building beyond natural limits Breaking through muscle-building plateaus Competitive bodybuilding Muscle wasting conditions Typical dose : 100mcg daily or every other day Best for : Advanced users, competitive bodybuilders, people with muscle wasting conditions Duration : 4-8 weeks typically Note : Expensive, limited availability, advanced peptide for serious users only GHK-Cu (Copper Peptides) Primary function : Stimulates collagen production and reduces inflammation for skin rejuvenation and tissue repair Main uses: Skin anti-aging (reduces wrinkles, improves texture) Hair growth and thickness Wound healing Anti-inflammatory effects Tissue repair and remodeling Typical dose : 1-3mg injected daily, or topical serums (1-3% concentration) applied 2x daily Best for : People focused on skin aging, hair thinning, chronic inflammation Duration : 12-24 weeks for significant skin/hair improvements Learn more : GHK-Cu complete guide and glow peptides GHRP-2 (Growth Hormone Releasing Peptide-2) Primary function : Stimulates strong GH pulses and increases appetite Main uses: Muscle building with appetite enhancement Bulking phases for hard gainers GH stimulation with hunger benefits Alternative to Ipamorelin when appetite increase desired Typical dose : 100-300mcg injected 2-3x daily on empty stomach Best for : People struggling to eat enough calories for muscle gain, bulking phases Duration : 12-24 weeks Note : Similar to Ipamorelin but with stronger hunger effects GHRP-6 (Growth Hormone Releasing Peptide-6) Primary function : Stimulates GH release with very strong appetite stimulation Main uses: Muscle building during aggressive bulking Increasing appetite for hard gainers GH stimulation when hunger is desired side effect Typical dose : 100-300mcg injected 2-3x daily Best for : Hard gainers, people needing significant appetite increase for muscle building Duration : 12-24 weeks Note : Strongest hunger-stimulating GH peptide, not ideal for cutting phases Hexarelin Primary function : Potent GH releaser with additional cardio-protective properties Main uses: Strong GH stimulation Muscle building Cardiovascular health support Alternative to other GHRP peptides Typical dose : 100-200mcg injected 2-3x daily Best for : People wanting potent GH release, those with cardiovascular concerns Duration : 8-16 weeks (potential desensitization with longer use) Note : May cause desensitization with prolonged use, cycle on/off recommended HGH Fragment 176-191 Primary function : Isolated fat-burning portion of growth hormone without other GH effects Main uses: Targeted fat loss Fat burning without muscle gain Cutting phases Stubborn fat reduction Typical dose : 250-500mcg injected subcutaneously 1-2x daily, fasted Best for : People wanting only fat loss from GH (not muscle gain or other effects) Duration : 12-16 weeks Learn more : HGH Fragment calculator Ipamorelin Primary function : Selective GH releaser that creates natural GH pulses without affecting cortisol or appetite Main uses: Muscle building and body recomposition Anti-aging (paired with CJC-1295) Enhanced recovery Sleep quality improvement Fat loss while preserving muscle Typical dose : 100-300mcg injected subcutaneously 2-3x daily (morning, afternoon, before bed) Best for : Most people wanting GH benefits - cleanest side effect profile of GH peptides Duration : 12-24 weeks minimum, safe for long-term use Learn more : Ipamorelin vs CJC-1295 and muscle growth guide Kisspeptin Primary function : Regulates reproductive hormones and may help with fertility and hormonal balance Main uses: Fertility support Hormonal regulation Potential menopause symptom relief Libido enhancement Typical dose : 1-10mcg daily Best for : People with fertility issues, hormonal imbalances Duration : Varies by application Note : Newer peptide with limited data, experimental Melanotan II (MT2) Primary function : Stimulates melanin production for tanning and has appetite suppression/libido effects Main uses: Tanning without UV exposure Appetite suppression for fat loss Libido enhancement Skin protection (increased melanin) Typical dose : 250-500mcg injected daily initially, then maintenance doses as needed Best for : People wanting tan year-round, additional appetite suppression during dieting Duration : Load for 2-4 weeks, then maintenance 1-2x weekly Note : Tanning is cosmetic, appetite/libido effects bonus for some users MGF (Mechano Growth Factor) Primary function : Localized muscle growth and repair stimulation, especially post-workout Main uses: Muscle building and hypertrophy Muscle repair after training Injury recovery in muscle tissue Localized muscle growth Typical dose : 100-200mcg injected immediately post-workout, can inject locally near trained muscle Best for : Bodybuilders, people wanting enhanced muscle growth response to training Duration : Use on training days for 4-8 weeks Note : Short half-life, must use immediately post-workout for best effects Mod GRF 1-29 (CJC-1295 no DAC) Primary function : Short-acting GH releaser that creates GH pulses when injected Main uses: GH stimulation with more frequent dosing Paired with GHRP peptides for synergistic GH release Muscle building and recovery Alternative to CJC-1295 DAC for those wanting more control Typical dose : 100-200mcg injected 2-3x daily with meals Best for : People wanting multiple daily GH pulses, those preferring shorter-acting peptides Duration : 12-24 weeks Note : Requires more frequent dosing than CJC-1295 with DAC MOTS-c (Mitochondrial-Derived Peptide) Primary function : Enhances mitochondrial function and metabolic health Main uses: Energy and endurance enhancement Metabolic health optimization NAD+ boosting effects Longevity and cellular health Fat metabolism improvement Typical dose : 5-15mg injected subcutaneously 2-3x weekly Best for : People wanting increased energy, endurance athletes, longevity-focused individuals Duration : 12-24 weeks minimum, can use long-term Learn more : NAD+ peptides guide PEG-MGF (Pegylated Mechano Growth Factor) Primary function : Long-acting version of MGF for sustained muscle growth and repair Main uses: Muscle building and recovery Systemic muscle growth (vs localized MGF) Post-workout muscle repair Injury recovery Typical dose : 200-300mcg injected 2-3x weekly post-workout Best for : Bodybuilders wanting sustained MGF effects without daily dosing Duration : 4-8 weeks Note : Pegylation extends half-life significantly vs regular MGF Selank Primary function : Anxiety reduction and cognitive enhancement without sedation Main uses: Anxiety and stress management Cognitive function improvement Focus and mental clarity Mood stabilization Immune system support Typical dose : 250-500mcg injected or nasal spray 1-3x daily Best for : People with anxiety, focus issues, high-stress situations Duration : Use as needed or 4-8 week protocols Note : Nootropic peptide, effects subtle but meaningful for anxiety/cognition Semax Primary function : Cognitive enhancement, focus improvement, and neuroprotection Main uses: Mental clarity and focus Cognitive performance enhancement Neuroprotection Stroke recovery support ADHD symptom management (anecdotal) Typical dose : 300-600mcg nasal spray or injected 1-2x daily Best for : People wanting cognitive enhancement, students, professionals with high mental demands Duration : Use as needed or 4-12 week cycles Note : Popular nootropic peptide with strong anecdotal support Semaglutide Primary function : GLP-1 receptor agonist that provides powerful appetite suppression for weight loss Main uses: Significant weight loss (15-20% body weight) Appetite control Blood sugar regulation Obesity treatment Metabolic health improvement Typical dose : Start 0.25mg weekly, titrate up to 1-2.4mg weekly over 16-20 weeks Best for : People needing to lose 20+ lbs, those with difficult appetite control, metabolic syndrome Duration : 20-24 weeks to goal weight, then maintenance dose ongoing Learn more : Semaglutide guide and semaglutide calculator Sermorelin Primary function : Stimulates natural GH release from pituitary gland Main uses: Growth hormone optimization Anti-aging Muscle building and recovery Sleep quality improvement Alternative to Ipamorelin (similar effects) Typical dose : 200-300mcg injected subcutaneously before bed Best for : People wanting GH benefits, those who prefer established older peptides Duration : 12-24 weeks minimum Note : Similar to Ipamorelin but less selective (may affect cortisol/prolactin slightly) SS-31 (Elamipretide) Primary function : Mitochondrial-targeted peptide that improves cellular energy production Main uses: Mitochondrial dysfunction Chronic fatigue Neurodegenerative disease support Cardiovascular health Aging-related energy decline Typical dose : 5-20mg injected subcutaneously daily Best for : People with chronic fatigue, mitochondrial issues, serious biohackers Duration : 8-24 weeks Note : Expensive, cutting-edge longevity peptide with promising research TB-500 (Thymosin Beta-4) Primary function : Promotes cell migration and tissue organization for healing, especially tendons and ligaments Main uses: Tendon and ligament healing Injury recovery (especially chronic injuries) Flexibility and range of motion improvement Scar tissue reduction Hair growth (secondary benefit) Typical dose : 2-10mg injected subcutaneously 2x weekly (higher doses for loading phase) Best for : People with tendon/ligament injuries, chronic pain, flexibility issues Duration : 8-16 weeks minimum for tissue healing Learn more : TB-500 complete guide and TB-500 calculator Tesamorelin Primary function : Specifically reduces visceral (belly) fat while stimulating GH release Main uses: Visceral fat reduction Belly fat specifically Metabolic health improvement HIV-associated lipodystrophy (original indication) Typical dose : 1-2mg injected subcutaneously daily Best for : People with stubborn belly fat, metabolic syndrome, visceral fat accumulation Duration : 12-24 weeks Note : More targeted for belly fat than general weight loss peptides Thymosin Alpha-1 Primary function : Immune system modulation and enhancement Main uses: Immune function improvement Chronic infections Autoimmune condition support (may help or harm, individual assessment needed) Cancer treatment support (adjunct) Hepatitis treatment support Typical dose : 1.6-3mg injected subcutaneously 2-3x weekly Best for : People with compromised immunity, chronic infections, preventive immune support Duration : 4-12 weeks for acute issues, can use long-term for chronic conditions Note : Powerful immune modulator, consult doctor for autoimmune conditions Tirzepatide Primary function : Dual GLP-1/GIP receptor agonist for enhanced weight loss and metabolic benefits Main uses: Weight loss (slightly better than semaglutide, 15-22%) Appetite suppression Blood sugar control (superior to semaglutide) Metabolic syndrome treatment Typical dose : Start 2.5mg weekly, titrate to 5-15mg weekly over 16-20 weeks Best for : People wanting maximum weight loss results, those with diabetes or prediabetes Duration : 20-24 weeks to goal, then maintenance Learn more : Tirzepatide dosing guide and semaglutide vs tirzepatide Peptides by primary goal Best peptides for injury recovery Primary choices: BPC-157 : First-line for most injuries TB-500 : Especially tendons/ligaments GHK-Cu : Chronic inflammation, skin wounds Best stack : BPC-157 + TB-500 for severe injuries Learn more : Injury recovery guide Best peptides for muscle growth Primary choices: Ipamorelin : Clean GH pulses CJC-1295 : Sustained GH elevation MGF/PEG-MGF: Localized muscle growth GHRP-6: If appetite increase desired Best stack : Ipamorelin + CJC-1295 (gold standard) Learn more : Muscle growth guide Best peptides for weight loss Primary choices: Semaglutide : Proven, effective, well-studied Tirzepatide : Slightly better results AOD-9604: Fat burning without appetite effects HGH Fragment 176-191: Targeted fat loss Best for most people : Semaglutide (effectiveness + cost + safety data) Learn more : Weight loss guide Best peptides for anti-aging Primary choices: Ipamorelin + CJC-1295 : Foundation NAD+ peptides (MOTS-c, SS-31): Cellular energy GHK-Cu : Skin and inflammation Epithalon: Experimental longevity Best stack : Ipamorelin + CJC-1295 + MOTS-c + GHK-Cu (comprehensive) Learn more : Anti-aging peptides Best peptides for skin and hair Primary choices: GHK-Cu : Best for skin TB-500: Hair growth potential Ipamorelin + CJC-1295: Systemic skin improvement Best approach : GHK-Cu topical (face) + injectable (systemic) Learn more : Glow peptides guide Best peptides for energy and performance Primary choices: MOTS-c : Mitochondrial function SS-31: Cellular energy Semax: Cognitive energy Ipamorelin + CJC-1295: Overall vitality Best for endurance : MOTS-c Learn more : Athletic performance Best peptides for gut health Primary choice: BPC-157 : Heals leaky gut, IBS, gastritis Secondary: GHK-Cu: Anti-inflammatory for gut Administration : Oral BPC-157 for direct gut contact, injectable for systemic Learn more : Gut health peptides How to choose the right peptide Step 1: Identify your primary goal What's your #1 objective right now

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The under-the-radar injections people are taking to build muscle this summer including the 'Wolverine' shot
Protect intestinal health and promote intestinal healing and repair.4
Intercellular mitochondrial transfer enhances metabolic fitness and Anti-Tumor effects of CAR T cells [J]