Head-to-Head Peptide Comparisons
41+ evidence-based comparisons. See how peptides stack up on evidence, mechanisms, side effects, treatment fit, and cost context.
United Kingdom is selected. Evidence comparison remains global, while legal, pricing, and routing assumptions may still use US-first defaults until United Kingdom rollout is complete.
Each comparison covers evidence level, FDA status, mechanism of action, primary uses, side effects, ease of use, and cost. All claims cite peer-reviewed sources.
Growth Hormone Secretagogues
17Ipamorelin is a selective ghrelin mimetic (GHRP) that triggers GH pulses, while CJC-1295 is a GHRH analog that amplifies GH release duration. They are commonly combined because their mechani...
Both are ghrelin mimetics that stimulate GH release, but GHRP-2 is more potent at the cost of greater side effects. Ipamorelin is considered the cleanest GHRP with virtually no impact on cor...
Ipamorelin offers clean, selective GH release without hunger or cortisol spikes, while GHRP-6 is known for causing intense hunger due to strong ghrelin activity. GHRP-6 was one of the earlie...
Hexarelin is the most potent GHRP available, producing the strongest GH release of any ghrelin mimetic, but at the cost of significant cortisol and prolactin elevation. Ipamorelin is preferr...
Ipamorelin works on the ghrelin receptor while sermorelin works on the GHRH receptor — two different arms of GH release. Sermorelin has a longer clinical history and was previously FDA-appro...
Both are GHRH analogs but CJC-1295 was engineered for a dramatically longer half-life. Sermorelin has a 10-20 minute half-life requiring daily injections, while CJC-1295 with DAC lasts days....
CJC-1295 and tesamorelin are both GHRH analogs but tesamorelin is the only one that is FDA-approved (for HIV-associated lipodystrophy). Tesamorelin has robust clinical trial data showing vis...
GHRP-2 and GHRP-6 are closely related ghrelin mimetics. GHRP-2 is more potent for GH release and causes less hunger, while GHRP-6 is known for its intense appetite stimulation. Both raise co...
Both are potent GHRPs, with hexarelin producing the highest GH release of any peptide in this class. However, hexarelin causes rapid receptor desensitization, making it unsuitable for long-t...
GHRP-6 and hexarelin are both ghrelin mimetics but hexarelin is substantially more potent. GHRP-6 is characterized by intense hunger stimulation, while hexarelin is notable for its cardiopro...
Both are GHRH analogs but tesamorelin is FDA-approved and has Phase III data for visceral fat reduction. Sermorelin was previously FDA-approved for pediatric use and is widely prescribed off...
CJC-1295 and GHRP-2 represent the two main arms of GH secretion: GHRH and ghrelin pathways. CJC-1295 is a GHRH analog that provides sustained GH elevation, while GHRP-2 is a ghrelin mimetic ...
CJC-1295 (GHRH pathway) and GHRP-6 (ghrelin pathway) target different receptors for GH release. They are synergistic when combined. CJC-1295 provides sustained GH elevation while GHRP-6 trig...
Sermorelin (GHRH pathway) and GHRP-2 (ghrelin pathway) stimulate GH through different receptor systems. Sermorelin has a longer clinical history with former FDA approval, while GHRP-2 provid...
Sermorelin provides GHRH-mediated physiological GH release, while GHRP-6 triggers potent ghrelin-mediated pulses with strong appetite stimulation. Sermorelin's former FDA approval gives it a...
Sermorelin is a GHRH analog with former FDA approval and a physiological release pattern, while hexarelin is the most potent GHRP but carries rapid desensitization risk. Sermorelin is better...
Ipamorelin (ghrelin pathway) and tesamorelin (GHRH pathway) stimulate GH through different mechanisms. Tesamorelin is FDA-approved for HIV lipodystrophy with proven visceral fat reduction, w...
Healing & Recovery
3BPC-157 and TB-500 are both popular research peptides for tissue repair, but they work through different mechanisms. BPC-157 is a gastric pentadecapeptide that promotes angiogenesis and tend...
BPC-157 focuses on deep tissue and organ healing through angiogenesis and growth factor modulation, while GHK-Cu is a copper-binding tripeptide primarily researched for skin remodeling and w...
TB-500 promotes systemic tissue repair through actin upregulation and cell migration, while GHK-Cu is a short copper peptide primarily used for skin and surface wound healing. TB-500 is favo...
Sexual Health
1Sleep & Stress
1Weight Loss
9Both are FDA-approved for type 2 diabetes and obesity. Semaglutide (Ozempic/Wegovy) is a GLP-1 receptor agonist, while tirzepatide (Mounjaro/Zepbound) is a dual GIP/GLP-1 agonist. Clinical t...
Semaglutide is an FDA-approved blockbuster for obesity with robust clinical evidence, while AOD-9604 is a fragment of human growth hormone (hGH 177-191) with limited and disappointing clinic...
Tirzepatide is one of the most effective weight loss drugs ever developed, with FDA approval and ~20%+ weight loss in trials. AOD-9604 is an hGH fragment that failed clinical trials for obes...
Both are FDA-approved GLP-1 receptor agonists for diabetes and obesity. Semaglutide (Ozempic/Wegovy) is dosed weekly and produces greater weight loss (~15%). Liraglutide (Victoza/Saxenda) is...
Tirzepatide is an FDA-approved dual GIP/GLP-1 agonist achieving up to 22.5% weight loss. Retatrutide is an investigational triple agonist (GIP/GLP-1/glucagon) showing up to 24.2% weight loss...
Semaglutide is the most widely prescribed GLP-1 agonist with proven CV benefits and ~15% weight loss. Retatrutide is an investigational triple agonist showing 24.2% weight loss in Phase 2 — ...
Liraglutide was the first GLP-1 agonist approved for obesity, producing ~8% weight loss with daily dosing. Tirzepatide is a newer dual GIP/GLP-1 agonist achieving up to 22.5% weight loss wit...
Tirzepatide is an FDA-approved dual GIP/GLP-1 agonist with up to 22.5% weight loss. Survodutide is an investigational dual GLP-1/glucagon agonist showing up to 19% weight loss with particula...
Both are investigational next-generation peptides for obesity. Retatrutide is a triple agonist (GIP/GLP-1/glucagon) with up to 24.2% weight loss — the highest ever reported. Survodutide is a...
Cross-Category Comparisons
10Both peptides have anti-inflammatory properties but through different mechanisms. BPC-157 promotes tissue healing via angiogenesis and growth factors, while KPV is a tripeptide (alpha-MSH fr...
BPC-157 is primarily a healing peptide that promotes tissue repair, while LL-37 is a human cathelicidin antimicrobial peptide that serves as a first-line immune defense. LL-37 has direct ant...
TB-500 and LL-37 both contribute to wound healing but through entirely different pathways. TB-500 promotes cell migration and tissue remodeling via actin regulation, while LL-37 fights infec...
Selank and Semax are both Russian-developed regulatory peptides approved in Russia for clinical use. Selank is an anxiolytic based on tuftsin (an immune peptide), while Semax is a nootropic ...
Both are Russian-developed peptides studied for anti-aging. Epithalon (Epitalon) is a tetrapeptide that activates telomerase and is derived from epithalamin (pineal extract). Thymalin is a t...
Semaglutide and sermorelin approach weight/body composition from entirely different angles. Semaglutide suppresses appetite via GLP-1 receptors and is FDA-approved for obesity, while sermore...
Semaglutide is an FDA-approved GLP-1 agonist for direct weight loss, while ipamorelin is a GH secretagogue that can improve body composition through increased growth hormone. Semaglutide pro...
GHK-Cu and KPV are both short peptides with anti-inflammatory and healing properties. GHK-Cu (tripeptide-copper complex) focuses on collagen remodeling and skin regeneration, while KPV (alph...
Both are FDA-approved peptides affecting metabolic pathways. Tirzepatide (dual GIP/GLP-1 agonist) produces dramatic overall weight loss, while tesamorelin (GHRH analog) specifically reduces ...
AOD-9604 is an hGH fragment (176-191) that was designed to isolate fat-burning effects of GH without other GH activity, while ipamorelin stimulates natural GH release for full-spectrum GH be...
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Medical Disclaimer
This content is for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendations.
Always consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Do not disregard professional medical advice based on information found on this site.
No claims of therapeutic efficacy are made for substances that are not FDA-approved for the discussed indications. Research citations reflect published findings and do not imply endorsement.