Considering the potential for therapeutic development of (in)GSH, the established safety and tolerability data, biological plausibility, and pilot level clinical evidence of benefit are further supported with this demonstration that (in)GSH is able to augment brain GSH levels
My skin type is dry , and I didnt experience any irritationin fact, it felt very gentle
He discovered it played a major role in tissue remodeling, wound healing, and skin regeneration [1]

Creating topical GHK-Cu serum 1% GHK-Cu serum (common strength): 50mg GHK-Cu powder Mix with 5g (5ml) carrier (hyaluronic acid serum, gel) Creates 1% concentration Apply daily to face 2% GHK-Cu serum (stronger): 50mg GHK-Cu powder Mix with 2.5g carrier Creates 2% concentration More powerful but can irritate Carrier options: Hyaluronic acid serum (best) Aloe vera gel Water-based serum Niacinamide serum How to make: Purchase quality carrier serum Add GHK-Cu powder to serum Mix thoroughly until dissolved Store in dark bottle Refrigerate Use within 30 days Topical application protocol Daily application: Cleanse face thoroughly Apply 2-3 drops serum to face and neck Massage gently until absorbed Morning and/or evening Follow with moisturizer if desired Where to apply: Entire face Neck and dcolletage Around eyes (careful, avoid in eyes) Forehead wrinkles Any area with aging concerns Expected results: Week 4-6: Skin texture improving Week 8-10: Visible firmness increase Week 12+: Wrinkle reduction, tone improvement Combining with skincare: Use GHK-Cu before moisturizer Can combine with retinol (see timing below) Compatible with vitamin C, niacinamide Use SPF during day (always) See our can you use peptides and retinol together , hyaluronic acid peptide , and copper peptides ruined my skin guide

For visible results in hyperpigmentation and radiance, a glutathione supplement like Glutone 1000 is usually the more effective choice
By doing so, it helps to reduce hyperpigmentation, dark spots, and dullness, leading to a brighter, more even skin tone