ghk - cu dosage GHK-Cu Calculator GHK-Cu Dosage Calculator and Chart

The Hostynek and Maibach group at UCSF measured exactly this in 2011: human skin permeation of GHK-Cu as a function of skin layer, with the result that the peptide accumulates in the upper stratum corneum but does not pass through to viable epidermis or dermis in any meaningful quantity 4

Store the bottle in a cool, dry place away from direct sunlight.

These compounds are referenced in scientific and technical literature strictly for educational purposes, with emphasis on reproducibility, stability, and mechanistic investigation under controlled research conditions

Weeks 4 to 12 (therapeutic phase) use a 2 to 5 percent concentration once daily, targeting active collagen stimulation and repair

doi: 10.1016/j.jconrel.2020.11.038