--- title: "Biotin vs GHK-Cu: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/biotin-vs-ghk-cu description: "Compare Biotin vs GHK-Cu side by side. We earn a commission on some vendor links. Mechanism, half-life, dose range, side effects and prices. GHK-Cu from $34.99." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) # Biotin vs GHK-Cu Side-by-side comparison of Biotin and GHK-Cu: mechanism, half-life, dose range, safety profile, and vendor pricing. Biotin: no price on file GHK-Cu from $34.99 ## Price snapshot ### Biotin Current low — 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ### GHK-Cu Current low $34.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ## Biotin Biotin (vitamin B7, also called vitamin H from the German Haut for "skin" and historically named coenzyme R, factor W, factor R, factor X, vitamin Bw, or Bios II in various discovery-era nomenclatures) is a water-soluble… No vendor price on file. Full Biotin profile (https://www.bodyhackguide.co/compound/biotin) ## GHK-Cu GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine, a molecule Pickart and Thaler first pulled out of human plasma in 1973. The free peptide (GHK, C14H24N6O4) weighs about 340.4 Da; bind it 1:1… **Lowest listed price:** $34.99 across 7 listings Full GHK-Cu profile (https://www.bodyhackguide.co/compound/ghk-cu) ## Side-by-side comparison | Attribute | Biotin | GHK-Cu | | --- | --- | --- | | Category | Vitamin | Skin, Hair & Aesthetics | | Research Stage | Dietary Supplement (Food Ingredient) | Approved/marketed as a topical cosmetic ingredient (Copper tripeptide-1) with supporting small human studies. Injectable use is preclinical/off-label, research-use-only, with no human clinical trials. | | Mechanism of Action | Biotin operates as the covalently-attached prosthetic group for five carboxylase enzymes, bound to a specific lysine residue on the enzyme via an amide bond formed by holocarboxylase synthetase (HCS). This covalent attachment is unusual among vitamin cofactors… | GHK-Cu works mostly as a copper shuttle and a signaling peptide. It binds Cu(II) with high affinity (log K around 16.4, close to albumin's 16.2) and can supply or regulate copper for copper-dependent enzymes like SOD1, lysyl oxidase, cytochrome c oxidase, and… | | Half-Life | — | ~30-60 min (plasma; approximate legacy figure, no robust modern human PK study) | | Typical Dose Range | — | 200-500 mcg SC daily (community/RUO; no clinically established injectable dose) | | Dosing Frequency | — | Once daily subcutaneous; some run 5 days on / 2 days off. Topical: 1-2x daily to cleansed skin. | | Administration | — | Subcutaneous, Topical | | Side Effects | Biotin has an exceptionally clean direct safety profile — no established tolerable upper intake level, no dose-limiting toxicity reported at doses up to 300 mg/day, and minimal side effect signal in decades of clinical use. The practical safety concern is not… | Topical GHK-Cu is generally well tolerated; higher-concentration formulations (4-5%) raise the odds of irritation, redness, or stinging. Injectable use has no safety data from controlled trials; the main theoretical concern is copper accumulation with repeated… | | Molecular Weight | — | Free peptide (GHK): 340.38 Da (C14H24N6O4). Copper complex (GHK-Cu): 401.9 Da (C14H22CuN6O4, neutral 1:1 Cu(II) complex). | | Common Vial Sizes | — | 50 mg, 100 mg | ## Price History 4 data points - OF - BM - Half Nattys - BHG Labs ### Biotin: potential benefits - No structured benefit list published. ### GHK-Cu: potential benefits - Stimulates type I collagen synthesis in human fibroblasts at low nanomolar-to-picomolar concentrations (PMID: 3169264) - Increases glycosaminoglycans (dermatan/chondroitin sulfate) and upregulates decorin in wound models (PMID: 11121126) - Modulates matrix metalloproteinases and their inhibitors, partially correcting the MMP-9/TIMP-1 imbalance in a smoke-induced emphysema model (PMID: 35936787) - Drives tissue remodeling and chemoattracts macrophages, mast cells, and capillary cells to injury sites (PMID: 18644225) - Modulates expression of ~4,000+ human genes via the Broad Institute Connectivity Map, including DNA-repair and antioxidant genes (PMID: 25302294) - Increases stemness and proliferative potential of epidermal basal cells and keratinocytes (PMID: 23019153) - Acts as an antioxidant and anti-inflammatory copper regulator in the context of aging (PMID: 22666519) - Broad skin-regeneration effects on collagen, proteoglycans, MMPs, and immune/endothelial cell recruitment (PMID: 26236730) ## Frequently asked ### What's the difference between Biotin and GHK-Cu? Biotin is a vitamin that biotin operates as the covalently-attached prosthetic group for five carboxylase enzymes, bound to a specific lysine residue on the enzyme via an amide bond formed by…. GHK-Cu is a skin, hair & aesthetics that ghk-cu works mostly as a copper shuttle and a signaling peptide. it binds cu(ii) with high affinity (log k around 16.4, close to albumin's 16.2) and can supply or regulate copper…. The two differ in mechanism, half-life (not reported vs ~30-60 min (plasma; approximate legacy figure, no robust modern human PK study)), and typical dose range. ### Which has the longer half-life, Biotin or GHK-Cu? Biotin has a half-life of not reported. GHK-Cu has a half-life of ~30-60 min (plasma; approximate legacy figure, no robust modern human PK study). Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Can you stack Biotin and GHK-Cu? Stacking depends on mechanism overlap, safety profile, and goals. Biotin and GHK-Cu should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds. ## See current vendor prices Listings from the vendors we track. Prices change often, so check the vendor before you buy. Biotin prices: https://www.bodyhackguide.co/compound/biotin?tab=prices GHK-Cu prices: https://www.bodyhackguide.co/compound/ghk-cu?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy Biotin or GHK-Cu Check the vendor trust score. Every supplier we track is rated 0-100 on COA verification, payment transparency, shipping, reviews, and listings: one published, reproducible methodology, applied to every vendor. View Vendor Scorecard (https://www.bodyhackguide.co/vendors/scorecard) ## Related comparisons GHK CU vs AHK CU: https://www.bodyhackguide.co/compare/ghk-cu-vs-ahk-cu **Research use only.** BodyHackGuide is a research and price-comparison reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. Prices shown are pulled from vendor listings tracked on BHG and are subject to change. Every vendor is ranked on the same public, reproducible methodology. See editorial standards (https://www.bodyhackguide.co/editorial-standards) and affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). 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