doi: 10.3389/fphys.2021.807685 Received 02 November 2021 Accepted 07 December 2021 Published 28 January 2022 Volume 12 - 2021 Edited by Katherine Burns, University of Cincinnati, United States Reviewed by Stacy McAllister, Emory University, United States
Verification of the copper content is particularly important for GHK-Cu, as uncomplexed GHK (without copper) has different properties
Active Ingredient L-Glutathione + Glycolic Acid + Vitamins C, E Strength Tier Cosmetic grade Time to Results 812 weeks for visible brightening Sun Sensitivity Moderate daily SPF 30+ recommended Regulatory Status OTC worldwide as cosmetic skincare Cycling / Off Period Long-term daily use no required cycling Best For For adults with uneven tone, sun spots, fine lines, or early signs of skin aging
Product disclaimer: If any adverse instances such as a rash, swelling or itchiness arise, cease usage and consult with a dermatologist
You Live a High-Stress Life Stress burns through your vitamin C reserves fast