Both showed benefit, but results were not broken down by medication
And for budget-conscious supplementation, Jarrow Formulas Glutathione Reduced delivers a clinically relevant dose at the lowest cost per serving among reputable brands
10.1016/j.biocel.2004.01.028 50 MajewskaM
Clinical pharmacokinetic studies reveal that after instillation of N Acetyl L Carnosine Powder into the eye, the compound undergoes dose-dependent hydrolysis within 15 to 30 minutes, gradually releasing active carnosine directly into the anterior chamber
A randomized controlled trial by Miller, Wagner, and colleagues published in the Archives of Facial Plastic Surgery in 2006 evaluated topical copper tripeptide complex on CO2 laser-resurfaced skin in 13 patients and found no statistically significant differences between groups for resolution of erythema, wrinkles, or overall skin quality on objective assessment, although subjective patient-reported skin quality favored the GHK-Cu side (p = 0.04)