The consensus is that GHK-Cu can enhance results, but it usually complements other therapies (like vitamin supplementation, topical agents, or healthy lifestyle) rather than serving as a standalone fix
Unknown marketplace sellers can introduce questions about authenticity, storage, expiration dates and supply-chain handling
Eating a diet rich in sulfur-containing foods (like garlic, onions, and cruciferous vegetables) provides the cysteine your body needs to produce its own "master antioxidant." What to Expect When You Start When you begin taking a high-quality glutathione supplement, the changes are often subtle at first
Anything above 3% is unnecessary and increases the risk of irritation
Skin Firmness and Texture: It improves elasticity, thickness, and hydration, countering sagging and roughness
But they are still experimental, insurance probably will not cover them, and you should make this decision with your doctor not on your own