ghk-cu copper peptide hair growth clinical study topical AHK-Cu (2007) — Plain-Language Summary Do your own research on our two active ingredients Copper Peptide 10% GHK-CU, 5%

Injectable research studies have similarly reported low rates of adverse events, though this should not be read as a clinical endorsement for any particular use

An independent 2002 study on 20 women showed that it increased collagen in 70% of those treated with GHK-Cu, compared to 50% for vitamin C and 40% for Retinoic Acid COPPER PEPTIDES AND SCAR REDUCTION Research has demonstrated GHK-CUs remarkable ability to reduce the depth of scars and ultimately diminish shallow scarring to a point where they are more or less invisible

Use consistently for a firmer, more youthful complexion

See our storage guide

the right form depends on your goals and your provider's assessment