Peptide Library
A clear, approachable guide to the peptide therapies and research compounds you may encounter through CelluCraft.
Open a category to learn what each peptide is, how it is being studied, and where FDA-approved uses differ from investigational or custom-prepared options.
Educational information only. Availability depends on a licensed clinician’s evaluation, medical appropriateness, and applicable law.
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Semaglutide — a GLP-1 receptor agonist used in FDA-approved medicines for type 2 diabetes and chronic weight management. Compounded versions are not FDA-approved and require individualized clinical review.
Tirzepatide — a dual GIP/GLP-1 receptor agonist used in FDA-approved medicines for type 2 diabetes and chronic weight management. Compounded versions are not FDA-approved.
Cagrilintide — a long-acting amylin analogue being studied for weight management. It is investigational, is not FDA-approved, and FDA states it cannot be used in compounding under federal law.
Retatrutide — an investigational triple GIP/GLP-1/glucagon receptor agonist. It is not FDA-approved, and FDA states it cannot be used in compounding under federal law.
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CJC-1295 (no DAC) — a short-acting GHRH analogue studied for its effect on pulsatile growth-hormone signaling; not FDA-approved.
Ipamorelin — a growth-hormone secretagogue studied for selective ghrelin-receptor activity; not FDA-approved.
CJC-1295 + Ipamorelin — a research blend combining two growth-hormone signaling pathways; not FDA-approved.
Sermorelin — a GHRH analogue used to stimulate the body’s own growth-hormone release; current compounded preparations are not FDA-approved.
Tesamorelin — a GHRH analogue available in an FDA-approved medicine for reducing excess abdominal fat in adults with HIV-associated lipodystrophy. Other uses and custom preparations are not FDA-approved.
Tesamorelin + Ipamorelin — a custom blend studied for combined GHRH and ghrelin-receptor signaling; the combination is not FDA-approved.
IGF-1 LR3 — a long-acting IGF-1 analogue used in laboratory research; not FDA-approved for human use.
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BPC-157 — a synthetic research peptide studied in preclinical models of tissue repair and inflammation. Human evidence is limited, and it is not FDA-approved.
TB-500 — a thymosin beta-4 fragment studied in preclinical healing and cell-migration research. Human safety data are limited, and it is not FDA-approved.
Wolverine Blend — combines BPC-157 and TB-500 for research-oriented repair signaling; the blend is not FDA-approved.
GLOW Blend — combines BPC-157, TB-500 and GHK-Cu in a custom research formulation; not FDA-approved.
KLOW Blend — combines KPV, BPC-157, TB-500 and GHK-Cu in a custom research formulation; not FDA-approved.
KPV — a short alpha-MSH-derived peptide studied for inflammatory signaling. FDA reports no identified human exposure data for compounded KPV; it is not FDA-approved.
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Semax — a synthetic peptide studied for neurologic and cognitive pathways. U.S. human safety information is limited, and it is not FDA-approved.
Selank — a synthetic peptide studied for anxiety-related and neuroimmune pathways. Evidence remains limited, and it is not FDA-approved.
DSIP (Emideltide) — a peptide studied for sleep-related signaling. FDA reports insufficient safety information for proposed compounded routes; it is not FDA-approved.
Dihexa — a research compound studied for neurotrophic signaling. FDA reports no identified human exposure data for dihexa acetate; it is not FDA-approved.
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Epitalon — a synthetic tetrapeptide studied in aging-related research. Human safety information is limited, and it is not FDA-approved.
MOTS-c — a mitochondrial-derived peptide studied for metabolic and cellular signaling. FDA reports no identified human exposure data for compounded products; it is not FDA-approved.
SS-31 (Elamipretide) — a mitochondria-targeted peptide. An FDA-approved elamipretide medicine exists only for improving muscle strength in people with Barth syndrome weighing at least 30 kg; other uses or preparations are not FDA-approved.
FOXO4-DRI — an experimental peptide studied in cellular-senescence research. Evidence is preclinical, and it is not FDA-approved.
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Thymosin Alpha-1 (TA-1) — an immune-signaling peptide studied in a range of infectious and immune conditions. It is not FDA-approved in the United States, and FDA describes available safety information for compounded use as inadequate.
LL-37 — a naturally occurring antimicrobial peptide studied for innate immune signaling. It is not FDA-approved, and compounded use raises important safety and quality questions.
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Bremelanotide (PT-141) — a melanocortin receptor agonist. An FDA-approved bremelanotide medicine exists for acquired, generalized hypoactive sexual desire disorder in certain premenopausal women; other uses or preparations are not FDA-approved.
Kisspeptin — a reproductive-signaling peptide studied for its role in the hypothalamic-pituitary-gonadal axis. Compounded kisspeptin products are not FDA-approved, and available safety data are limited.
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GHK-Cu — a naturally occurring copper-binding peptide used in cosmetic research and topical skin-care formulations. Injectable preparations are not FDA-approved and raise additional safety and quality concerns.
MT-1 (Melanotan I / Afamelanotide-related) — a melanocortin peptide associated with pigmentation signaling. An FDA-approved afamelanotide implant exists only for a specific rare light-sensitivity disorder; other forms and uses are not FDA-approved.
MT-2 (Melanotan II) — an investigational melanocortin peptide associated with pigmentation and sexual-response signaling. It is not FDA-approved, and FDA notes reports of serious adverse events.
Community & News
Peptides in the News
A curated reading list from medical institutions and established publications covering peptide science, safety, regulation and emerging research.
What to Know About the “Anti-Aging” Peptide Shots Flooding Social Media
BPC-157, TB-500, CJC-1295 and GHK-Cu move from niche communities into mainstream wellness.
Read the article →Peptide Therapy: What the Science Shows
A medical overview of BPC-157, TB-500, MOTS-c and the “Wolverine” combination.
Read the article →Designer Peptides for Wellness: Are They Safe?
A clinical-news examination of the evidence and safety questions surrounding popular wellness peptides.
Read the article →An FDA Panel Just Endorsed These Unproven Peptides
Current reporting on the advisory review of BPC-157, KPV, TB-500 and MOTS-c.
Read the article →FDA Panel Recommends Loosening Regulations for Some Peptides
An accessible summary of the July 2026 advisory discussion and what the vote does—and does not—mean.
Read the article →The Obesity Drug Race Moves Beyond Weight Loss
A look at retatrutide and the next generation of metabolic medicines.
Read the article →Articles are provided for general education and do not represent CelluCraft’s endorsement of every claim or viewpoint. Peptide availability and medical appropriateness require evaluation by a licensed clinician.