Head-to-Head Peptide Comparisons
41+ evidence-based comparisons. See how peptides stack up on evidence, mechanisms, side effects, and more.
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 Secretagogues17
Ipamorelin 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 the...
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 imp...
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 ...
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 ...
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...
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 l...
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 s...
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. Bot...
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 ...
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...
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 pres...
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 ghreli...
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 G...
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 GHR...
Sermorelin provides GHRH-mediated physiological GH release, while GHRP-6 triggers potent ghrelin-mediated pulses with strong appetite stimulation. Sermorelin's former FDA approval ...
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...
Ipamorelin (ghrelin pathway) and tesamorelin (GHRH pathway) stimulate GH through different mechanisms. Tesamorelin is FDA-approved for HIV lipodystrophy with proven visceral fat re...
Healing & Recovery3
BPC-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 angiogenesi...
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 remode...
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-5...
Weight Loss9
Both 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. ...
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 disappoint...
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 trial...
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/S...
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% w...
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 ...
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% weigh...
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...
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. Survod...
Cross-Category Comparisons10
Both peptides have anti-inflammatory properties but through different mechanisms. BPC-157 promotes tissue healing via angiogenesis and growth factors, while KPV is a tripeptide (al...
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 ...
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 fi...
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 ...
Both are Russian-developed peptides studied for anti-aging. Epithalon (Epitalon) is a tetrapeptide that activates telomerase and is derived from epithalamin (pineal extract). Thyma...
Semaglutide and sermorelin approach weight/body composition from entirely different angles. Semaglutide suppresses appetite via GLP-1 receptors and is FDA-approved for obesity, whi...
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. Semag...
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...
Both are FDA-approved peptides affecting metabolic pathways. Tirzepatide (dual GIP/GLP-1 agonist) produces dramatic overall weight loss, while tesamorelin (GHRH analog) specificall...
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-spec...
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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.