best place to inject ghk cu Where GHK-Cu: Injection Sites & How-To What is a GHK CU

Best used on a clean, dry scalp for maximum absorption

Our protocol adjustments for Fitzpatrick IV-V patients using the GHK-Cu stack include more conservative SkinPen depth settings, lower needle density on the first session, an extended recovery window between sessions compared to lighter skin types, consistent mineral sunscreen guidance beginning two weeks before the first session, and careful timing to avoid treating recently tanned skin

Provided as lyophilized powder with characteristic blue coloration

Here's why that combination is interesting: rapamycin inhibits mTOR, the cellular growth pathway that, when chronically overactivated, drives cellular senescence in follicle stem cell niches