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The co-factor stack compounds this: ALA: Regenerates oxidised glutathione back to active form extends effective activity NAC: Provides cysteine, the rate-limiting precursor for endogenous glutathione synthesis Astaxanthin: UV-protective carotenoid prevents oxidative damage that triggers melanin production Richie et al
2000s: Palatin Technologies modified MT-2's structure to create bremelanotide (PT-141), retaining MC3R/MC4R selectivity for sexual function while reducing MC1R activity (tanning) and improving the pharmacological profile
However, they may contain lower concentrations of active copper peptides
Copper peptides also support the skin's appearance by enhancing its elasticity and moisture retention, making them valuable for maintaining the skin's youthful look and resilience
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