Peptide dosing concepts (educational)
Non-prescriptive overviews of dosing math and exposure concepts (concentration, pharmacokinetics, and basic titration framing). These pages do not provide dosing instructions.
Helpful tools: peptide calculator · half-life plotter.
105 peptides
5-amino-1mq
Metabolic / mitochondrial / small molecules · NNMT inhibitor (small molecule)
Small-molecule NNMT inhibitor discussed in early-stage experimental metabolic and weight-related research.
ACE-031
Other injectables · Myostatin/activin inhibitor (ACVR2B trap)
An experimental soluble activin receptor (ACVR2B) fusion protein studied for inhibiting myostatin and activin to promote muscle mass.
Adipotide (FTPP)
Metabolic / mitochondrial / small molecules · Experimental pro-apoptotic peptide
Experimental targeted peptide studied in preclinical models for reducing fat tissue by acting on its blood supply.
AHK-Cu
Other injectables · Copper peptide
A copper-binding tripeptide studied mainly in cosmetic/skin and hair contexts for signaling effects on tissue and follicles.
AICAR
Metabolic / mitochondrial / small molecules · AMPK activator
An AMPK-activating compound studied as an exercise mimetic in metabolic and endurance research.
Alprostadil
Other injectables · Prostaglandin E1
A prostaglandin E1 analog (a vasodilator) used medically for erectile dysfunction and certain circulatory conditions.
AOD-9604
WADA LimitedGH / growth factors · Growth hormone fragment
Synthetic peptide derived from the C-terminal portion of human growth hormone, discussed for potential effects on fat metabolism.
Ara-290
Metabolic / mitochondrial / small molecules · Erythropoietin-derived peptide
Peptide derived from erythropoietin (cibinetide) studied in small randomised trials for tissue-protective and anti-inflammatory effects.
B7-33
Other injectables · Relaxin (H2) analog
A single-chain peptide derived from the hormone relaxin (H2), studied preclinically for anti-fibrotic effects in heart, lung, and kidney tissue.
BAC water
Other injectables · Diluent
Sterile water containing a bacteriostatic preservative, supplied as a diluent for reconstituting compatible medications rather than as an active therapeutic.
Botulinum toxin
Other injectables · Neurotoxin
A potent neurotoxin that blocks acetylcholine release at nerve terminals; used medically and cosmetically to relax targeted muscles.
BPC-157
WADA LimitedHealing / anti-inflammatory · Synthetic peptide fragment
Synthetic peptide fragment often discussed for tissue healing and GI-related effects.
BPC-157 + GHK-Cu + KPV
Other injectables · Peptide blend
A vendor blend of BPC-157, GHK-Cu, and KPV combining repair, skin-signaling, and anti-inflammatory components; no dedicated trials.
BPC-157 + GHK-CU + TB500
WADA LimitedHealing / anti-inflammatory · Peptide blend
Combination catalog entry bundling BPC-157, GHK-Cu, and TB-500 around tissue-repair and cosmetic themes; no dedicated trials.
BPC-157 + GHK-CU + TB500 + KPV
WADA LimitedHealing / anti-inflammatory · Peptide blend
Combination catalog entry bundling four peptides discussed for healing, cosmetic, and anti-inflammatory themes; no dedicated trials.
BPC-157 + TB500
WADA LimitedHealing / anti-inflammatory · Peptide blend
Combination catalog entry pairing BPC-157 with TB-500, two peptides often discussed for tissue repair; no dedicated trials.
Bronchogen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied in Russian research for respiratory/bronchial tissue; limited independent evidence.
Cagrilintide
GLP-1 / incretin · Long-acting amylin analog
Long-acting amylin analog studied for chronic weight management, usually alongside a GLP-1 receptor agonist.
Cagrilintide + Semaglutide
GLP-1 / incretin · Amylin analog + GLP-1 receptor agonist combination
Fixed-dose combination of an amylin analog and a GLP-1 receptor agonist studied for obesity and metabolic disease.
Cardiogen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for cardiovascular/heart tissue; mostly older Russian research.
Cartalax
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied in the context of cartilage and joint tissue; limited evidence.
Cerebrolysin
Neuro / nootropic / cosmetic · Neuropeptide preparation
Injectable mixture of low-molecular-weight peptides and amino acids derived from porcine brain, used in some regions for neurologic indications.
Chonluten
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for respiratory epithelium and lung tissue; limited independent data.
CJC-1295 + Ipamorelin
WADA LimitedGH / growth factors · Growth hormone peptide blend
Vendor blend pairing a GHRH analog with a selective ghrelin-receptor agonist; the combination itself has never been tested in a published human trial.
CJC-1295 with DAC
WADA LimitedGH / growth factors · Long-acting GHRH analog
Long-acting growth hormone–releasing hormone analog designed to extend GH and IGF-1 stimulation, discussed in experimental and wellness contexts.
CJC-1295 without DAC
WADA LimitedGH / growth factors · GHRH analog
Shorter-acting GHRH analog (modified GRF 1-29) discussed for stimulating GH release without a long-acting DAC modification.
Cortagen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for brain/cortex neuroprotection in Russian research; limited evidence.
Crystagen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for immune-system regulation; mostly older Russian research.
Dermorphin
Neuro / nootropic / cosmetic · Opioid peptide
Potent opioid-like peptide originally isolated from amphibian skin, occasionally discussed in experimental analgesia and performance contexts.
Dihexa
Other injectables · Nootropic peptide (angiotensin-derived)
An angiotensin IV-derived peptide studied preclinically for synaptogenesis and cognition via HGF/c-Met signaling.
DSIP
Neuro / nootropic / cosmetic · Sleep-related neuropeptide
Small peptide historically studied for effects on sleep and stress, now mostly of experimental and niche interest.
Dulaglutide
Other injectables · GLP-1 receptor agonist
A long-acting GLP-1 receptor agonist (marketed as Trulicity) used for type 2 diabetes; note vendor 'research' vials are not the approved product.
Epitalon
Neuro / nootropic / cosmetic · Peptide bioregulator (Khavinson)
Synthetic tetrapeptide discussed in aging and longevity circles on the basis of limited, region-specific research.
EPO (Erythropoietin)
Other injectables · Erythropoiesis-stimulating agent
A hormone that stimulates red blood cell production; used medically for anemia and notoriously misused (and WADA-banned) in endurance sport.
Follistatin 344
Other injectables · Myostatin-inhibiting protein
A follistatin variant studied for binding and inhibiting myostatin, a negative regulator of muscle growth.
FOXO4
Metabolic / mitochondrial / small molecules · Senolytic peptide
Experimental peptide discussed in senolytic and cellular-aging research, studied almost entirely in preclinical settings.
GDF-8 (Myostatin)
Other injectables · Myostatin
Growth differentiation factor 8, the natural myostatin protein that limits muscle growth; studied as a research reagent and drug target.
GHK-CU
Other injectables · Copper peptide
Naturally occurring copper-binding tripeptide with a topical cosmetic evidence base for skin appearance and essentially no human safety data as an injectable.
GHRP-2
WADA LimitedGH / growth factors · Growth hormone–releasing peptide
Growth hormone–releasing peptide (pralmorelin) from an earlier generation of GH secretagogues, used as a diagnostic agent in some regions.
GHRP-6
WADA LimitedGH / growth factors · Growth hormone–releasing peptide
Growth hormone–releasing peptide from the same family as GHRP-2, historically discussed for GH release and appetite stimulation.
Glutathione
Other injectables · Antioxidant tripeptide
Endogenous tripeptide antioxidant given orally or parenterally in wellness and hepatology contexts, with mixed evidence.
Gonadorelin
Other injectables · GnRH analog
A gonadotropin-releasing hormone (GnRH) analog studied for stimulating LH and FSH release in reproductive and hormonal contexts.
HCG
GH / growth factors · Gonadotropin hormone
Hormone with LH-like activity used in regulated reproductive and endocrine medicine, and discussed more broadly in wellness and performance contexts.
Hexarelin
WADA LimitedGH / growth factors · Growth hormone secretagogue
Potent growth hormone secretagogue from an earlier generation of GH-axis agents, now largely of historical and experimental interest.
HGH 191AA (Somatropin)
WADA LimitedGH / growth factors · Recombinant human growth hormone
Recombinant human growth hormone with the same 191–amino acid sequence as endogenous GH, used in regulated settings for growth hormone–related conditions.
HGH Fragment 176-191
Metabolic / mitochondrial / small molecules · Growth hormone fragment
A C-terminal fragment of growth hormone studied for lipolytic (fat-loss) effects without growth hormone's growth signaling.
HMG
GH / growth factors · Gonadotropin preparation
Menotropins: a gonadotropin preparation with FSH- and LH-like activity used in regulated fertility and endocrine settings.
Humanin
Other injectables · Mitochondrial-derived peptide
A mitochondrial-derived peptide studied for cytoprotective and metabolic signaling in aging research.
Hyaluronic acid
Other injectables · Glycosaminoglycan
A naturally occurring glycosaminoglycan used in skin, joint, and cosmetic contexts for hydration and tissue support.
IGF-1 LR3
GH / growth factors · IGF-1 analog
Long-acting insulin-like growth factor-1 analog discussed in experimental growth-factor contexts, with no clinical trial literature.
IGF-DES
GH / growth factors · IGF-1 analog
Truncated insulin-like growth factor-1 analog discussed for localized growth-factor signaling in experimental settings.
Insulin
Other injectables · Peptide hormone
The essential peptide hormone regulating blood glucose; a prescription medication with serious hypoglycemia risk if misused.
Ipamorelin
WADA LimitedGH / growth factors · Growth hormone secretagogue (ghrelin receptor agonist)
Selective growth hormone secretagogue and ghrelin-receptor (GHS-R1a) agonist whose corporate clinical program was discontinued.
Ipamorelin + Tesamorelin
Other injectables · Growth hormone peptide blend
A vendor blend pairing the GHRH analog tesamorelin with the selective secretagogue ipamorelin for complementary growth hormone signaling; no dedicated trials.
KissPeptin-10
Neuro / nootropic / cosmetic · Reproductive neuropeptide fragment
Peptide fragment of the kisspeptin family studied for its role in reproductive hormone signaling in endocrine and fertility research.
KPV (Lysine–Proline–Valine)
Healing / anti-inflammatory · Tripeptide fragment
Tripeptide fragment often discussed for anti-inflammatory and gut-related effects.
L-Carnitine
Other injectables · Amino acid derivative
An amino acid derivative involved in transporting fatty acids into mitochondria for energy; used in metabolic and fat-metabolism contexts.
Lemon Bottle
Other injectables · Fat-dissolving injectable (lipolysis)
A cosmetic fat-dissolving (lipolysis) injectable — not a peptide — marketed with riboflavin, bromelain, and lecithin; not FDA/MHRA/CE approved.
Lipo-C with B vitamins
Other injectables · Lipotropic injectable
Injectable mixture of lipotropic agents and B vitamins marketed in wellness settings for energy and weight-related goals, with limited evidence.
Lipo-C without B vitamins
Other injectables · Lipotropic injectable
Injectable mixture of lipotropic agents without added B vitamins, marketed for metabolic or weight-related support.
Liraglutide
Other injectables · GLP-1 receptor agonist
A daily GLP-1 receptor agonist (marketed as Victoza/Saxenda) for diabetes and weight; vendor 'research' vials are not the approved product.
Livagen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for liver tissue; mostly older Russian research, limited independent evidence.
LL37
Healing / anti-inflammatory · Antimicrobial peptide (cathelicidin)
Human cathelicidin-derived peptide discussed for roles in innate immunity and tissue defense, largely in experimental contexts.
Matrixyl
Other injectables · Cosmetic peptide
A cosmetic 'matrikine' peptide (palmitoyl pentapeptide) used topically in anti-aging skincare to signal collagen support.
Mazdutide
GLP-1 / incretin · GLP-1/glucagon dual receptor agonist
Dual GLP-1 and glucagon receptor agonist studied for obesity and type 2 diabetes; approved in China and investigational elsewhere.
Melatonin
Other injectables · Hormone (pineal)
The pineal hormone that regulates the sleep-wake cycle; widely used as a sleep aid and studied for circadian and antioxidant effects.
MGF (Mechano Growth Factor)
Other injectables · IGF-1 splice variant
Mechano growth factor, an IGF-1 splice variant (IGF-1Ec) produced by mechanically stressed muscle and studied for muscle repair.
MK-677 (Ibutamoren)
Other injectables · Growth hormone secretagogue
Orally active ghrelin-receptor agonist and growth hormone secretagogue studied for raising growth hormone and IGF-1.
MOTS-c
Metabolic / mitochondrial / small molecules · Mitochondrial-derived peptide
Mitochondrial-derived peptide studied for roles in metabolic regulation, insulin sensitivity, and cellular stress responses.
MT-I
Other injectables · Melanocortin-1 receptor agonist
Synthetic alpha-MSH analog (afamelanotide) approved as Scenesse for erythropoietic protoporphyria and discussed more broadly for skin pigmentation.
MT-II
WADA LimitedOther injectables · Melanocortin receptor agonist
Synthetic melanocortin receptor agonist discussed in relation to tanning and sexual function, primarily in experimental and non-regulated contexts.
NAD+
Metabolic / mitochondrial / small molecules · Cellular cofactor
Nicotinamide adenine dinucleotide, a central cellular cofactor discussed in metabolic, aging, and mitochondrial health research.
Oligopeptide-10
Other injectables · Cosmetic antimicrobial peptide
A synthetic cosmetic peptide (derived from the antimicrobial peptide granulysin) used topically in skincare for its antibacterial and skin-clarifying properties.
Orexin A
Other injectables · Neuropeptide (hypocretin-1)
A wake-promoting hypothalamic neuropeptide (hypocretin-1) that activates both orexin receptors (OX1R and OX2R); studied for arousal, appetite, and narcolepsy.
Orexin B
Other injectables · Neuropeptide (hypocretin-2)
A wake-promoting hypothalamic neuropeptide (hypocretin-2) that preferentially activates the OX2R receptor; less stable than orexin A and less studied.
Oxytocin
Other injectables · Peptide hormone
Endogenous peptide hormone involved in uterine contraction, lactation, and social behavior, with approved obstetric uses.
P21
Other injectables · Neurogenic peptide
A peptide studied preclinically for neurogenesis and cognitive effects (distinct from the p21 cell-cycle protein of the same name).
Pancragen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for pancreatic tissue; mostly older Russian research.
PE-22-28
Other injectables · Spadin analog (neuro)
A synthetic analog of spadin studied preclinically as a fast-acting antidepressant candidate via TREK-1 potassium-channel blockade.
PEG-MGF
GH / growth factors · IGF-1 splice variant analog
Pegylated mechano growth factor analog discussed in experimental muscle and recovery contexts.
Pinealon
Neuro / nootropic / cosmetic · Peptide bioregulator (Khavinson)
Short peptide complex marketed in Eastern European contexts as a neuroprotective peptide, with limited and region-specific evidence.
PNC-27
Other injectables · Experimental anticancer peptide
An experimental peptide studied preclinically for selectively disrupting cancer-cell membranes via an HDM-2 interaction.
Prostamax
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for prostate tissue; mostly older Russian research, limited evidence.
PT-141
Neuro / nootropic / cosmetic · Melanocortin receptor agonist
Melanocortin receptor agonist approved as Vyleesi for hypoactive sexual desire disorder in premenopausal women.
Retatrutide
GLP-1 / incretin · Triple GIP/GLP-1/glucagon receptor agonist
Investigational triple agonist targeting GIP, GLP-1, and glucagon receptors.
Selank
Neuro / nootropic / cosmetic · Anxiolytic peptide (tuftsin analog)
Synthetic peptide derived from tuftsin, discussed for anxiolytic and nootropic effects in experimental and regional clinical literature.
Semaglutide
GLP-1 / incretin · GLP-1 receptor agonist
GLP-1 receptor agonist commonly discussed for glycemic control and weight management.
Semax
Neuro / nootropic / cosmetic · Nootropic peptide (ACTH fragment)
Synthetic heptapeptide discussed for neuroprotective and nootropic effects, studied mainly in Eastern European literature.
Semax + Selank
Other injectables · Nootropic peptide blend
A vendor blend of the nootropic Semax and the anxiolytic Selank, combining cognitive and anti-anxiety research peptides; no dedicated trials.
Sermorelin Acetate
GH / growth factors · GHRH analog
Synthetic growth hormone–releasing hormone analog, formerly marketed as Geref for diagnostic and paediatric growth use and now discussed in wellness settings.
SLU-PP-322
Metabolic / mitochondrial / small molecules · Small-molecule metabolic agonist
Experimental small molecule discussed in preclinical metabolic and mitochondrial research, with no human data.
Snap-8
Neuro / nootropic / cosmetic · Cosmetic peptide
Cosmetic peptide (acetyl octapeptide-3) used in topical formulations and discussed for softening the appearance of facial lines.
SS-31
Metabolic / mitochondrial / small molecules · Mitochondria-targeted peptide
Mitochondria-targeted tetrapeptide (elamipretide) with an FDA accelerated approval in Barth syndrome and a clearly negative phase 3 trial elsewhere.
Survodutide
GLP-1 / incretin · GLP-1/glucagon dual receptor agonist
Investigational dual GLP-1 and glucagon receptor agonist studied for obesity and metabolic disease.
TB-500 (Thymosin Beta-4 fragment)
WADA LimitedHealing / anti-inflammatory · Thymosin beta-4 fragment
Product name covering the actin-binding fragment of thymosin beta-4 — and, in some vials, the full-length protein — discussed for tissue repair.
Teriparatide
Other injectables · PTH analog
A recombinant fragment of parathyroid hormone (marketed as Forteo) used medically to build bone in severe osteoporosis.
Tesamorelin
WADA LimitedGH / growth factors · GHRH analog
Synthetic growth hormone–releasing hormone analog approved in some regions for HIV-associated lipodystrophy and studied more broadly in metabolic research.
Testagen
Other injectables · Peptide bioregulator (Khavinson)
A short peptide bioregulator studied for testicular/reproductive tissue; mostly older Russian research.
Thymalin
Healing / anti-inflammatory · Thymic peptide extract
Thymic-derived peptide mixture historically used in some regions for immune modulation, now primarily of historical and experimental interest.
Thymosin Alpha-1
Healing / anti-inflammatory · Immunomodulating thymic peptide
Peptide derived from thymic proteins, discussed for immune-modulating effects and studied in selected infectious and oncologic contexts.
Tirzepatide
GLP-1 / incretin · Dual GIP/GLP-1 receptor agonist
Dual GIP/GLP-1 receptor agonist frequently discussed for type 2 diabetes and obesity.
Triptorelin Acetate
Other injectables · GnRH agonist
A gonadotropin-releasing hormone (GnRH) agonist used medically for hormone-sensitive conditions; continuous use down-regulates the reproductive axis.
Vilon
Other injectables · Peptide bioregulator (Khavinson)
A short (Lys-Glu) peptide bioregulator studied for immune modulation and aging; mostly older Russian research.
VIP (Vasoactive Intestinal Peptide)
Neuro / nootropic / cosmetic · Neuropeptide vasodilator
Endogenous neuropeptide involved in smooth muscle relaxation, vasodilation, and secretion; its synthetic form aviptadil has been trialled in serious illness.
Vitamin B12
Other injectables · Vitamin
Essential water-soluble vitamin involved in hematologic and neurologic function, given by injection when deficiency or absorption problems are present.
Compare dosing patterns side by side
Head-to-head references where two comparable compounds differ in titration schedule, dosing interval and the exposure the trials actually used.
- Healing / anti-inflammatoryBPC-157 vs TB-500Experimental healing peptides in context: mechanisms, evidence themes, safety and regulation.
- GLP-1 / incretinSemaglutide vs TirzepatideGLP-1 agonist vs dual GIP/GLP-1 agonist: conceptual differences, evidence landscape, and safety themes.
- GLP-1 / incretinTirzepatide vs RetatrutideDual agonist vs investigational triple agonist: mechanism framing and what evidence exists.
- GLP-1 / incretinSemaglutide vs RetatrutideApproved medicine vs investigational triple agonist: retatrutide's phase 2 weight numbers are larger, but only semaglutide has outcome data — and the head-to-head trial has not reported.
- GLP-1 / incretinSemaglutide vs LiraglutideWeekly vs daily GLP-1 from the same maker: the albumin-binding chemistry behind the half-life gap, and what SUSTAIN 10 and STEP 8 found head-to-head.
- GLP-1 / incretinCagriSema vs TirzepatideInvestigational amylin + GLP-1 combination vs approved dual GIP/GLP-1 agonist: why near-identical phase 3 weight numbers are not a head-to-head result.
- Healing / anti-inflammatoryBPC-157 vs GHK-CuBundled as healing peptides, but with non-overlapping evidence: rodent-only tendon and gut data versus a small topical cosmetic literature.
- Growth hormone axisMK-677 vs HGH (Somatropin)Oral ghrelin-receptor secretagogue vs recombinant growth hormone: what the randomized trials found on lean mass, strength, and glucose — plus the regulatory gap.
- Growth hormone axisIpamorelin vs CJC-1295Different receptors on one axis: a ghrelin-receptor agonist against a GHRH analog, two abandoned programs, and why the pair is sold as a blend.
- Growth hormone axisCJC-1295 vs SermorelinSame GHRH(1-29) backbone, opposite sides of the regulatory line: an approved drug discontinued for commercial reasons vs a compound whose phase 2 ended in a death.
- Growth hormone axisTesamorelin vs CJC-1295An FDA-approved GHRH analog next to an abandoned one: phase 3 visceral-fat data that reverses on discontinuation, versus a terminated trial and a unanimous FDA advisory vote.