Every peptide, explained clearly.

BPC-157 (Body Protection Compound 157) is a synthetic pentadecapeptide derived from a protein found in gastric juice. It has shown significant regenerative properties in preclinical studies, particularly for tendons, ligaments, and gut tissue.

TB-500 is a synthetic version of Thymosin Beta-4, a naturally occurring peptide found in high concentrations in blood platelets and wound fluid. It promotes cell migration, reduces inflammation, and supports tissue regeneration.

Semaglutide is a GLP-1 (glucagon-like peptide-1) receptor agonist originally developed for type 2 diabetes. It has since become one of the most clinically studied peptides for weight management, marketed as Ozempic and Wegovy.

CJC-1295 is a synthetic analogue of growth hormone-releasing hormone (GHRH). It stimulates the pituitary gland to release growth hormone in a pulsatile, natural pattern. Often combined with Ipamorelin for synergistic effect.

Ipamorelin is a selective growth hormone secretagogue and ghrelin receptor agonist. It stimulates growth hormone release with minimal effect on cortisol or prolactin, making it one of the cleaner GH-releasing peptides available.

PT-141, also known as Bremelanotide, is a melanocortin receptor agonist originally developed from Melanotan II. It is FDA-approved (as Vyleesi) for hypoactive sexual desire disorder in premenopausal women and is studied for male sexual dysfunction.

Epithalon (Epitalon) is a synthetic tetrapeptide based on the natural peptide Epithalamin, produced by the pineal gland. It has been studied primarily in Russia for its potential anti-aging effects, particularly its ability to activate telomerase.

Selank is a synthetic heptapeptide analogue of the human tetrapeptide Tuftsin, developed in Russia. It has been studied for its anxiolytic (anti-anxiety) and nootropic effects, and is approved as a medication in Russia.

Semax is a synthetic heptapeptide derived from the ACTH (adrenocorticotropic hormone) fragment 4–7. Developed in Russia, it has been studied extensively for cognitive enhancement, neuroprotection, and stroke recovery. It is approved as a medication in Russia and Ukraine.

GHRP-6 (Growth Hormone Releasing Peptide-6) is a synthetic hexapeptide that stimulates growth hormone secretion via the ghrelin receptor. It is one of the original GH secretagogue peptides and is notable for its significant appetite-stimulating effect.

Hexarelin is a synthetic hexapeptide GHRP with one of the strongest growth hormone-releasing effects of any peptide in its class. It also has a unique secondary mechanism — direct cardioprotective activity independent of GH release.

Tirzepatide is a dual GIP/GLP-1 receptor agonist — the first of its kind — approved for type 2 diabetes (Mounjaro) and obesity (Zepbound). Clinical trials have shown weight loss results exceeding those of Semaglutide, making it one of the most effective pharmacological weight management tools available.

GHK-Cu (Copper Peptide GHK-Cu) is a naturally occurring tripeptide-copper complex found in human plasma, saliva, and urine. It declines significantly with age and has been extensively studied for its roles in skin regeneration, wound healing, and anti-aging.

Thymosin Alpha-1 (Tα1) is a naturally occurring peptide derived from the thymus gland. It plays a central role in immune system regulation and has been studied for its ability to enhance immune responses in immunocompromised patients. It is approved as a medicine in several countries.

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide first isolated from rabbit brain in 1974. It has been studied for its ability to promote slow-wave (delta) sleep, reduce stress responses, and normalise disrupted sleep patterns.

Melanotan II (MT-II) is a synthetic analogue of alpha-melanocyte-stimulating hormone (α-MSH). Originally developed as a potential sunless tanning agent, it also produces significant effects on sexual arousal and appetite suppression. PT-141 (Bremelanotide) was derived from MT-II.

KLOW-80 is a synthetic peptide studied for its wound-healing and anti-inflammatory properties. It is a relatively newer research compound with a growing body of preclinical data suggesting utility in tissue repair and inflammatory conditions.

NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every living cell, essential for energy metabolism and DNA repair. Levels decline significantly with age. Injectable NAD+ and its precursors (NMN, NR) are widely studied for anti-aging, cognitive, and metabolic benefits.

SLU-PP-332 is a synthetic small-molecule compound (sometimes classified alongside research peptides) that activates oestrogen-related receptors (ERRα, ERRβ, ERRγ). It has attracted significant attention as a potential 'exercise mimetic' — producing metabolic adaptations similar to endurance training without physical exertion.

MOTS-c is a mitochondria-derived peptide encoded within the mitochondrial genome — making it unique among research peptides. It regulates metabolic homeostasis, improves insulin sensitivity, and has been linked to longevity in animal models. Levels decline with age.

Kisspeptin-10 is a naturally occurring neuropeptide and the shortest active fragment of the kisspeptin family. It plays a central role in regulating the hypothalamic-pituitary-gonadal (HPG) axis, stimulating the release of GnRH, LH, and FSH. It is studied for reproductive disorders, hypogonadism, and libido.

The CJC-1295 / Ipamorelin combination is one of the most widely used peptide stacks in the research community. By pairing a GHRH analogue (CJC-1295) with a GHRP (Ipamorelin), the blend produces a synergistic and sustained elevation of growth hormone that neither compound achieves alone.

The BPC-157 / TB-500 combination is the most popular healing peptide stack. BPC-157 provides targeted local repair — particularly for tendons, ligaments, and gut tissue — while TB-500 offers systemic anti-inflammatory and cell migration support. Together they address injury recovery from multiple angles.

Cagrilintide is a long-acting amylin analogue developed by Novo Nordisk. It mimics the hormone amylin, which is co-secreted with insulin and plays a key role in satiety and gastric emptying. It is being studied in combination with Semaglutide (as CagriSema) for enhanced weight loss outcomes.

HGH 191AA refers to recombinant human growth hormone (somatropin) — a 191 amino acid protein identical to the growth hormone naturally produced by the pituitary gland. It is a licensed medicine used for GH deficiency, muscle-wasting conditions, and short stature. It is also widely used off-label for body composition and anti-aging.

Tesamorelin is a synthetic analogue of growth hormone-releasing hormone (GHRH) approved by the FDA for the reduction of excess abdominal (visceral) fat in HIV-positive patients with lipodystrophy. It is one of the few GHRH analogues with robust human clinical trial data.

Retatrutide is a triple agonist targeting GLP-1, GIP, and glucagon receptors simultaneously — making it the most mechanistically comprehensive weight management peptide in clinical development. Phase 2 trials have shown weight loss exceeding 24% of body weight, surpassing both Semaglutide and Tirzepatide.