Test it yourself. If it fails, you get a full refund.
Independent test fails? Full refund.
Independent test fails? Full refund.
10 vials per kit, from 1 kit per product and strength. We reply to every quote request within 24 hours. How quotes work →
10 vials per kit · from 1 kit · reply within 24 hours Quotes →
10 vials per kit · from 1 kit Quotes →
Research topic
PTD-DBM, the designed peptide that keeps CXXC5 off Dishevelled, with the copper tripeptides GHK-Cu and AHK-Cu — in sealed vials, ten per kit.
Hair-follicle research on this site follows two lines. PTD-DBM was designed to stop the protein CXXC5 from binding Dishevelled, a step in Wnt/β-catenin signalling, and its papers study that pathway in mouse hair follicles, in skin wounds and in human dermal papilla cells. The copper tripeptides come from the skin topic; one study in our product data examined a tripeptide–copper complex on human hair follicles in vitro.
All three products are stocked with catalogue codes and a batch COA for every lot. GHK-Cu and AHK-Cu keep their pages under skin and ageing and are listed here as well, so that a hair-research order can be put together in one place.
PTD-DBM, a designed peptide that blocks the binding of CXXC5 to Dishevelled in Wnt/β-catenin signalling; the copper tripeptides of the skin topic are listed with it on the hair page.
Grouped by the papers cited on its page, which study the peptide in hair-follicle and skin-wound models.
Their own pages sit in another topic; they are shown here so that one order can cover this topic.
The studies recorded in our product data for the products of this topic (checked 2026-10-09): who led the study or which trial it was, the year, the journal and what was examined. They show what has been researched with each molecule, not results for the vials we supply.
| Product | First author / trial | Year | Journal | What was studied | Record |
|---|---|---|---|---|---|
| PTD-DBM | Lee SH | 2015 | J Exp Med | CXXC5 in skin-wound models, and the PTD-DBM peptide that blocks its binding to Dishevelled | PubMed 26056233 |
| PTD-DBM | Lee SH | 2017 | J Invest Dermatol | CXXC5 in human balding scalp, in dermal papilla cells and in CXXC5-deficient mice | PubMed 28595998 |
| PTD-DBM | Ryu YC | 2023 | Cells | CXXC5 and prostaglandin D2 in models of DHT-induced androgenetic alopecia | PubMed 36831222 |
| PTD-DBM | Mehta A | 2025 | Cells | Review of follicle neogenesis and Wnt/β-catenin signalling | PubMed 40497955 |
| GHK-Cu | Pickart L | 1980 | Nature | The plasma tripeptide GHK and the uptake of copper into cells | PubMed 7453802 |
| GHK-Cu | Pickart L | 2015 | Biomed Res Int | Review of GHK and the cellular pathways of skin regeneration | PubMed 26236730 |
| GHK-Cu | Pickart L | 2018 | Int J Mol Sci | Review of GHK-Cu read against gene-expression data | PubMed 29986520 |
| AHK-Cu | Pyo HK | 2007 | Arch Pharm Res | A tripeptide–copper complex on human hair follicles and dermal papilla cells in vitro | PubMed 17703734 |
Every lot of a stocked product has its own batch COA. Ask for the COA of the batch you are quoted before you order: the lot number on it is the lot we ship.
What the COA reportsPTD-DBM, GHK-Cu, AHK-Cu — each with catalogue codes, kits of 10 vials from 1 kit, and a batch COA for every lot.
PTD-DBM, which forms its own group here, and GHK-Cu and AHK-Cu, the copper tripeptides of the skin topic.
Twenty-five residues in three parts: eight arginines, four glycines and a 13-residue Dishevelled-binding motif. Both cysteines are free thiols in the material we supply.
Because buyers who research hair follicles ask for them. The study in our product data on this point, Pyo and colleagues (2007), used a tripeptide–copper complex on human hair follicles in vitro.
Name the products, strengths and number of kits, and your country. One written quote can cover several products — we reply within 24 hours.
