Hair Peptides – Follicle & Scalp Research

Mechanisms

Why hair research centres on copper peptides

Hair research approaches the follicle as a micro-organ dependent on its blood supply and surrounding matrix. GHK-Cu is studied for angiogenesis — the formation of new capillaries improving perifollicular blood supply — alongside collagen synthesis supporting the surrounding dermal structure, and anti-inflammatory signalling affecting the scalp micro-environment. That combination is why a single compound covers what would otherwise require several.

Purist Peptides research compounds in a laboratory setting

Study design

How hair protocols differ from skin protocols

Hair models are typically localised to scalp tissue rather than systemic — a longer research horizon than skin models because the hair cycle itself is slow, and follicle research endpoints take longer to become measurable. Published models also monitor copper load, since GHK-Cu is a copper-binding peptide. Unlike most compounds in the range, GHK-Cu is studied in continuous rather than cycled models, as it occurs naturally in plasma and does not cause receptor down-regulation.

The range

Compounds in this category

The compounds grouped here, each with the pathway it is studied for and the protocol shape most often used.

GHK-Cu

Copper tripeptide

A copper-binding tripeptide studied for follicle vascularisation, scalp integrity, collagen support and hair density. Published third-party test report available (100 mg). Studied in localised scalp-tissue models with copper-load monitoring documented in the literature

View GHK-Cu

Selection

How to choose

Start from the research question, not the compound name.

If the research question is…	Start with
Follicle and scalp research	GHK-Cu, the only compound in the range with an established hair-model literature
Researching skin and hair together	GHK-Cu covers both; see Peptides for Skin
Want GHK-Cu combined with repair peptides	GLOW and KLOW both contain it
Broader anti-aging context	Anti-Aging & Longevity

Independent laboratory testing of Purist Peptides research compounds

Verified quality

Tested before it ships

Published third-party test report for GHK-Cu (100 mg) · minimum 99% verified purity · documented copper-load guidance and research literature on the product page · lyophilised, refrigerate 2–8 °C after reconstitution. See Quality Standards.

See Quality Standards & all COAs

Questions

Hair Growth research FAQ

What is GHK-Cu studied for in hair research?

GHK-Cu is referenced for perifollicular angiogenesis — improving the capillary supply to the follicle — alongside collagen support for surrounding dermal structure and anti-inflammatory signalling in the scalp micro-environment.

How are hair research models structured?

Hair models are typically localised to scalp tissue rather than systemic. Full reconstitution volumes and concentration calculations are on the product page.

How long before hair research endpoints are measurable?

Hair research runs on a longer horizon than skin research using the same compound, because the hair growth cycle is slow and follicle-level changes take time to register. Published study lengths are referenced on the product page.

Why do hair models monitor copper load?

GHK-Cu is a copper-binding peptide, so published research models monitor total copper load, particularly where copper supplementation is also present — documented in full on the GHK-Cu product page.

Does GHK-Cu need to be cycled?

The literature does not describe it as requiring cycling. It occurs naturally in human plasma and does not cause receptor down-regulation, so research models are typically continuous rather than on/off.

Keep exploring