The peptides people ask us about, in plain English

a GLP-1 receptor agonist

An FDA-approved active studied extensively for appetite regulation, blood-sugar control, and weight management in large human trials.

a dual GIP/GLP-1 receptor agonist

An FDA-approved active researched for weight management and metabolic health, with some of the largest effect sizes seen in modern obesity trials.

methionine, inositol, choline + B12

A vitamin–amino acid blend used in wellness settings to support normal fat metabolism and energy; evidence is modest and supportive rather than dramatic.

One of the most-discussed recovery peptides, researched mainly in preclinical models for tissue and gut support; often discussed in combinations with KPV or TB-500.

thymosin beta-4 fragment

Researched in early-stage studies for tissue repair and flexibility; commonly discussed alongside BPC-157 in recovery conversations.

A short peptide fragment researched for inflammation-related signaling, usually discussed as part of recovery-focused combinations.

A peptide with human clinical history in immune support contexts internationally; discussed for immune resilience and recovery.

A widely discussed pairing researched for supporting the body's own growth-hormone signaling rhythm, often raised in recovery and body-composition conversations.

A growth-hormone-releasing analog with a long clinical history, studied for supporting natural GH release patterns.

FDA-approved for a specific medical condition and studied in humans for body-composition effects; sometimes discussed with Ipamorelin. Other uses are off-label questions for a physician.

A naturally occurring hormone-signaling peptide researched for its role in reproductive hormone regulation.

bremelanotide

The active in an FDA-approved medication studied for sexual desire and arousal support.

delta sleep-inducing peptide

Researched since the 1970s for sleep architecture; human data remains limited, which is exactly the kind of nuance worth understanding before forming expectations.

Peptides with research history abroad, discussed for focus, stress resilience, and cognitive support; U.S. clinical data is limited.

Short regulatory peptides discussed in longevity and cognition circles; research is early and mostly preclinical.

A coenzyme central to cellular energy production that declines with age; supplementation routes and their real-world impact are active areas of human research.

a mitochondrial-derived peptide

Researched for exercise-related metabolic signaling and cellular energy; an exciting but early area of study.

A synthetic peptide discussed in longevity research communities; most evidence is early-stage and preclinical.

copper peptide

Best evidenced in its topical form for skin appearance and repair support — also part of the popular "GLOW" combination discussed with BPC-157 and TB-500.

The body's master antioxidant, studied for antioxidant defense, liver support, and skin tone; absorption differs meaningfully between forms.

cathelicidin

A naturally occurring antimicrobial peptide researched for immune-related signaling; clinical evidence is early.