Peptides A–Z

Every peptide in common research and grey-market use, with plain-talk information on each. No selling, no scaremongering — just the facts you need.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

5

Small molecule (not strictly a peptide) that inhibits NNMT, an enzyme involved in fat-cell metabolism.

A

A short fragment of HGH originally promoted for fat loss without HGH's side effects. Modest evidence.

GLP-1 / metabolic

B

Synthetic 15-amino-acid fragment associated with tendon, gut and soft-tissue healing in animal studies.

Healing & recovery

C

Long-acting growth-hormone-releasing hormone analogue, almost always stacked with ipamorelin.

Growth hormone secretagogues

Long-acting amylin analogue that suppresses appetite via a different pathway than GLP-1 — often stacked with semaglutide.

GLP-1 / metabolic

D

A peptide associated with delta-wave sleep promotion. Honest reading: evidence is mixed.

Sleep & recovery

E

Russian-origin tetrapeptide associated with telomerase activation and longevity claims.

G

Naturally occurring copper-binding tripeptide associated with skin renewal, wound healing and hair regrowth.

Skin & longevity

H

Strongest GHRP for GH release — also the dirtiest, with notable cortisol and prolactin effects.

Growth hormone secretagogues

HGH (Human Growth Hormone)

Recombinant human growth hormone — direct GH rather than a peptide that asks your body to make more.

Growth hormone secretagogues

I

Selective growth hormone releasing peptide (GHRP). The clean, low-side-effect option in the GHRP family.

Growth hormone secretagogues

A modified, longer-acting version of IGF-1 — the downstream effector of growth hormone.

Anabolic & growth

K

Three-amino-acid anti-inflammatory peptide. Particularly studied in inflammatory bowel disease.

Anti-inflammatory

A peptide at the top of the reproductive hormone cascade. Stimulates GnRH, then LH, then testosterone.

L

Natural human antimicrobial peptide with broad antibacterial, antiviral and antifungal activity.

Immune & antimicrobial

M

A peptide encoded in mitochondrial DNA — exercise-mimetic effects on metabolism in animal models.

Metabolic & mitochondrial

GLP-1 + glucagon dual agonist developed by Innovent/Lilly, especially studied in Chinese populations.

GLP-1 / metabolic

Synthetic melanocyte-stimulating hormone analogue used for tanning and as a libido enhancer.

Tanning & libido

N

A coenzyme central to energy metabolism, declining with age. Injection or IV is one delivery route; precursor pills (NMN/NR) are another.

P

Melanocortin receptor agonist approved in the US for female low-desire disorder. Used by both sexes for libido.

Long-acting version of MGF (a splice variant of IGF-1 activated by muscle damage).

Anabolic & growth

R

Triple receptor agonist (GLP-1 + GIP + glucagon) producing the largest weight loss results yet seen in trials.

GLP-1 / metabolic

S

The original "big" GLP-1 agonist. Approved for diabetes (Ozempic), obesity (Wegovy), and as an oral tablet (Rybelsus).

GLP-1 / metabolic

Short-acting GHRH analogue, the gentlest GH-promoting peptide. Often the first one age-related clinics prescribe.

Growth hormone secretagogues

GLP-1 + glucagon dual agonist from Boehringer Ingelheim, with strong liver fat data.

GLP-1 / metabolic

Russian nootropic peptide derived from ACTH. Used clinically there for stroke and ADHD; here for focus and cognition.

Cognition & mood

Russian anxiolytic peptide. Mild calming effect without sedation; complements semax.

Cognition & mood

Mitochondria-targeted peptide that protects inner membrane cardiolipin. In trials for genetic mitochondrial diseases.

T

Synthetic version of an active region of Thymosin Beta-4, used for systemic soft-tissue recovery.

Healing & recovery

Dual GLP-1 + GIP agonist, marketed as Mounjaro for diabetes and Zepbound for obesity. Best-validated GLP-1 class drug for weight loss.

GLP-1 / metabolic

GHRH analogue uniquely studied and approved for visceral fat reduction.

Growth hormone secretagogues

Thymosin Alpha-1

Immune-modulating peptide from the thymus gland. Approved as a medicine in many countries for hepatitis B and other infections.