dosing guide · as printed in every lid
GHK-Cu 100
evenings · topical · 333 µg per click · 300 clicks per pen
GHK-Cu 100
evenings · topical · 333 µg per click · 300 clicks per pen
phase 01 Placeholder, pen at starting dose 
weeks 1–4 the evening layer
1 mg · 3 clicks
every evening · on clean, dry skin
Dispensed onto clean skin in the evening, the copper-blue tint is expected and absorbs in. The reference schedule starts low while the skin adjusts; brief tingling in the first nights is common, persistent redness is not.
✦apply to clean, dry skin only
✦the blue tint is normal and settles
✦start low while the skin barrier adjusts
weeks 4–8 full strength
2 mg · 6 clicks
every evening · the collagen-remodelling dose
The dose the remodelling literature is built on. Texture reads first, a smoother feel around week four, with tone and fine-line change closer to week six in the published photography protocols.
✦photograph weekly in the same light for a reference
✦texture reads before tone in the data
✦pair with morning SPF, always
phase 02 Placeholder, dial at step-up dose 
phase 03 Placeholder, full reference dose 
weeks 8+ maintenance
2 mg · 6 clicks
alternate evenings · hold the result
From week eight, alternate evenings maintain what daily use built. New collagen in the literature is protected by consistent SPF, the reference schedule pairs every morning with sun protection. One kit at maintenance pace lasts roughly twice as long.
✦alternate evenings holds the result
✦SPF every morning protects new collagen
✦maintenance pace roughly doubles a kit's life
keep exploring
✦ This guide reproduces the printed dosing card and published research titration, it is a reference for laboratory research, not medical advice. See the research-use notice before use.
