A physician-formulated topical serum designed to support scalp health and the visible appearance of thicker, fuller-looking hair.
It combines two key peptides, GHK-Cu (Copper Tripeptide-1) and Zinc Thymulin, to nourish hair follicles and support the structure and strength of each strand.
Select probiotics only. Online shop only. Valid only through 3/31/26.
Online shop only. Valid only through 3/23/26.
$59.95
2 in stock
Healthy hair begins with a healthy scalp, and DUO was created to optimize that environment.
This advanced serum delivers a dual-peptide approach, pairing GHK-Cu (Copper Tripeptide-1) with Zinc Thymulin to support the scalp’s natural renewal processes and promote the conditions needed for vibrant hair growth.
GHK-Cu is a copper-bound tripeptide that supports tissue repair and regenerative signaling at the follicle level, helping to maintain a healthy extracellular environment.
Zinc Thymulin is a zinc-dependent nonapeptide that works synergistically with GHK-Cu to enhance scalp nourishment and revitalization. Together, these short-chain amino acid complexes support follicular proliferation, promote growth factors involved in hair maintenance, and support hair follicle health.
This fast-absorbing, lightweight serum is designed for daily use and aims to produce visible results in less than 30 days.
The formula is cGMP-manufactured in the USA and third-party tested by ISO-certified labs for purity and potency.
Apply evenly to affected areas of the scalp once daily. Gently massage into the scalp to support absorption. Avoid contact with eyes. For external use only. Stop use if irritation occurs.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.
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