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As collagen levels naturally decline with age, skin may become thinner, less firm, and more prone to wrinkles

Moreover, oral administration of GSH can be more expensive than supplementation with cysteine and glycine, and its systemic bioavailability may be poor due to its natural degradation in the digestive tract

GHK-Cu has demonstrated antioxidant and anti-inflammatory properties in skin models, potentially helping to protect follicles from everyday stressors

The resulting complex is water-soluble, allowing it to enter the bloodstream and be excreted harmlessly

de Ruijter TC, Veeck J, de Hoon JP, van Engeland M, Tjan-Heijnen VC