Guides

Our article library — what each peptide is, how it works and what the research shows.

FEATURED GUIDE

Reconstitution Guide

How to store, mix, measure and inject research peptides — step by step.

Read the guide

46 articles

Other compounds

5-amino-1mq: What It Is, How It Works & What the Research Shows

5-Amino-1MQ is a small-molecule (non-peptide) inhibitor of nicotinamide N-methyltransferase (NNMT), an enzyme that is overactive in fat tissue.

~3 min read

Cognitive

Adamax: What It Is, How It Works & What the Research Shows

Adamax is a newer synthetic derivative of Semax, modified to increase stability and duration of action.

~3 min read

Metabolic

AOD-9604: What It Is, How It Works & What the Research Shows

AOD-9604 is a modified fragment of human growth hormone (amino acids 177–191).

~3 min read

Recovery

ARA-290: What It Is, How It Works & What the Research Shows

ARA-290 (cibinetide) is an 11-amino-acid peptide derived from erythropoietin (EPO).

~3 min read

Other compounds

Buffered NAD+: What It Is, How It Works & What the Research Shows

Buffered NAD+ is NAD+ formulated with a buffering agent to bring it closer to physiological pH, intended to reduce the stinging and discomfort that standard NAD+ injections can cause.

~3 min read

Metabolic

Cagrilintide: What It Is, How It Works & What the Research Shows

Cagrilintide is a long-acting analog of amylin, a hormone released alongside insulin that promotes fullness and slows stomach emptying.

~3 min read

Longevity

Cartalax: What It Is, How It Works & What the Research Shows

Cartalax is a synthetic tripeptide (Ala-Glu-Asp) from the Khavinson family of peptide bioregulators, developed in Russia.

~3 min read

Blends

CJC-1295 (no DAC) + IPA: What It Is, How It Works & What the Research Shows

This blend combines two growth hormone secretagogues that work through different receptors.

~3 min read

Cognitive

Cortagen: What It Is, How It Works & What the Research Shows

Cortagen is a synthetic tetrapeptide (Ala-Glu-Asp-Pro) from the Khavinson bioregulator family, modeled on peptides derived from brain cortex tissue.

~3 min read

Cognitive

DSIP: What It Is, How It Works & What the Research Shows

DSIP (delta sleep-inducing peptide) is a 9-amino-acid neuropeptide first isolated in 1977 from rabbits in deep sleep.

~3 min read

Longevity

Epithalon: What It Is, How It Works & What the Research Shows

Epithalon (Epitalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) based on epithalamin, a natural extract of the pineal gland.

~3 min read

Longevity

FOXO4-DRI: What It Is, How It Works & What the Research Shows

FOXO4-DRI is a modified (D-retro-inverso) peptide designed as a senolytic, meaning it selectively clears senescent cells that accumulate with age.

~3 min read

Blends

GLOW 70: What It Is, How It Works & What the Research Shows

GLOW is a regenerative blend of GHK-Cu, BPC-157 and TB-500 aimed at skin and tissue repair.

~3 min read

Recovery

Glutathione: What It Is, How It Works & What the Research Shows

Glutathione is a tripeptide (glutamate, cysteine and glycine) and the body's main intracellular antioxidant.

~3 min read

Growth & hormones

Ipamorelin: What It Is, How It Works & What the Research Shows

Ipamorelin is a selective growth hormone secretagogue: a pentapeptide that activates the ghrelin receptor to trigger a pulse of growth hormone from the pituitary.

~3 min read

Growth & hormones

Kisspeptin: What It Is, How It Works & What the Research Shows

Kisspeptin is a hormone that sits at the top of the reproductive axis.

~3 min read

Blends

KLOW: What It Is, How It Works & What the Research Shows

KLOW is a regenerative blend of GHK-Cu, BPC-157, TB-500 and KPV.

~3 min read

Recovery

KPV: What It Is, How It Works & What the Research Shows

KPV is a tripeptide (Lys-Pro-Val) taken from the end of alpha-melanocyte stimulating hormone (α-MSH).

~3 min read

Recovery

LL-37: What It Is, How It Works & What the Research Shows

LL-37 is the only human cathelicidin, a natural antimicrobial peptide made by immune and skin cells.

~3 min read

Growth & hormones

Melanotan I: What It Is, How It Works & What the Research Shows

Melanotan I (afamelanotide) is a synthetic analog of alpha-MSH that selectively activates the MC1 receptor on skin pigment cells.

~3 min read

Growth & hormones

Melanotan II: What It Is, How It Works & What the Research Shows

Melanotan II is a cyclic analog of alpha-MSH that activates several melanocortin receptors (MC1, MC3 and MC4), not just the skin-pigment receptor.

~3 min read

Metabolic

MOTS-C: What It Is, How It Works & What the Research Shows

MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA.

~3 min read

Cognitive

N-Acetyl Selank Amidate: What It Is, How It Works & What the Research Shows

N-Acetyl Selank Amidate is Selank with an acetyl group added to one end and an amide group to the other.

~3 min read

Cognitive

N-Acetyl Semax Amidate: What It Is, How It Works & What the Research Shows

N-Acetyl Semax Amidate is Semax with an acetyl group added to one end and an amide group to the other.

~3 min read

Other compounds

NAD+: What It Is, How It Works & What the Research Shows

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell.

~3 min read

Blends

Orbitzen 40: What It Is, How It Works & What the Research Shows

Orbitzen 40 is a recovery blend of BPC-157, TB-500 and KPV.

~3 min read

Growth & hormones

Oxytocin: What It Is, How It Works & What the Research Shows

Oxytocin is a hormone made in the hypothalamus and released from the pituitary.

~3 min read

Cognitive

PE-22-28: What It Is, How It Works & What the Research Shows

PE-22-28 is a synthetic analog of spadin, a peptide derived from the sortilin protein.

~3 min read

Cognitive

Pinealon: What It Is, How It Works & What the Research Shows

Pinealon is a synthetic tripeptide (Glu-Asp-Arg) from the Khavinson bioregulator family.

~3 min read

Growth & hormones

PT-141: What It Is, How It Works & What the Research Shows

PT-141 (bremelanotide) is a melanocortin receptor agonist (MC3R and MC4R) that acts in the brain to increase sexual desire and arousal.

~3 min read

Metabolic

Retatrutide: What It Is, How It Works & What the Research Shows

Retatrutide (LY3437943) is an investigational triple agonist that activates GIP, GLP-1 and glucagon receptors in a single molecule.

~3 min read

Cognitive

Selank: What It Is, How It Works & What the Research Shows

Selank is a synthetic heptapeptide based on tuftsin, a natural immune peptide, with a Pro-Gly-Pro tail added for stability.

~3 min read

Metabolic

Semaglutide: What It Is, How It Works & What the Research Shows

Semaglutide is a GLP-1 receptor agonist.

~3 min read

Cognitive

Semax: What It Is, How It Works & What the Research Shows

Semax is a synthetic heptapeptide based on a fragment of ACTH (4-10), with a Pro-Gly-Pro tail added for stability, and it has no hormonal activity.

~3 min read

Growth & hormones

Sermorelin: What It Is, How It Works & What the Research Shows

Sermorelin is the first 29 amino acids of growth hormone-releasing hormone (GHRH), the active portion of the natural hormone.

~3 min read

Other compounds

SLU-PP-332: What It Is, How It Works & What the Research Shows

SLU-PP-332 is a synthetic small-molecule (non-peptide) agonist of estrogen-related receptors, mainly ERRα, which control mitochondrial energy production in muscle.

~3 min read

Blends

SomatoPulse: What It Is, How It Works & What the Research Shows

SomatoPulse is a 1:1 blend of Ipamorelin and Tesamorelin that stimulates growth hormone from two directions.

~3 min read

Longevity

SS-31: What It Is, How It Works & What the Research Shows

SS-31 (elamipretide) is a mitochondria-targeting tetrapeptide.

~3 min read

Metabolic

Survodutide: What It Is, How It Works & What the Research Shows

Survodutide is an investigational dual glucagon and GLP-1 receptor agonist developed by Boehringer Ingelheim.

~3 min read

Recovery

TB-500: What It Is, How It Works & What the Research Shows

TB-500 is a synthetic version of the active region of thymosin beta-4 (Tβ4), a protein found in almost all human cells that binds actin, a key structural protein.

~3 min read

Growth & hormones

Tesamorelin: What It Is, How It Works & What the Research Shows

Tesamorelin is a stabilized analog of growth hormone-releasing hormone (GHRH) that stimulates the pituitary to release growth hormone and raises IGF-1.

~3 min read

Recovery

Thymosin Alpha-1: What It Is, How It Works & What the Research Shows

Thymosin Alpha-1 is a 28-amino-acid peptide originally isolated from the thymus.

~3 min read

Metabolic

Tirzepatide: What It Is, How It Works & What the Research Shows

Tirzepatide is a dual GIP and GLP-1 receptor agonist.

~3 min read

Longevity

Vilon: What It Is, How It Works & What the Research Shows

Vilon is a synthetic dipeptide (Lys-Glu) from the Khavinson bioregulator family, associated with the thymus and immune function.

~3 min read

Growth & hormones

VIP: What It Is, How It Works & What the Research Shows

VIP (vasoactive intestinal peptide) is a 28-amino-acid neuropeptide found throughout the gut, brain, lungs and immune system.

~3 min read

Blends

Wolverine: What It Is, How It Works & What the Research Shows

Wolverine is a recovery blend that typically combines BPC-157 and TB-500, two of the most widely discussed repair peptides.

~3 min read