Here's what GHK-Cu may be able to help you with: Skin firmness and texture : It could encourage firmer, smoother-looking skin Fine lines : May help with how prominent fine lines and wrinkles look
Xu X, Lemaire C, Grzych JM, Pierce RJ, Raccurt M, Mullier F, Zerimech F, Decavel JP, Peyrol S, Liu J, Fontaine J, Lafitte S, Capron A and Cesbron JY
Thus, amount of transcutol p preferably from 0.5 - 10, more preferably from 1 to 8 % and most preferably from 2 - 6 % is found to provide at least 40 - 80 % release in 12 hrs for lower doses
Continuous outcome data, expressed as mean standard deviation (SD), were analyzed to calculate pooled effect sizes presented as standardized mean difference (SMD) with 95% confidence intervals (CI)