GHK-Cu for Hair Growth: What the Evidence Actually Shows GHK-Cu is a naturally occurring copper peptide that declines with age and the drop correlates with slower follicle cycling, thinner hair, and impaired scalp repair
Treatments that go beyond the surface require a level of care that matches their intensity
ChemBiol Interact
Avoid glutathione soaps with excessive fragrances, harsh preservatives, or high concentrations of active ingredients that might trigger sensitivity
Light and heat can degrade the vitamin over time, reducing its potency

Here are the major medication classes that deplete glutathione and most doctors never mention this when they write the prescription: NSAIDs (Advil/ibuprofen, Aleve/naproxen, aspirin, Celebrex) the same over-the-counter pain relievers most people grab without thinking Acetaminophen-containing painkillers Vicodin, Percocet, Norco, Darvocet, NyQuil, Excedrin PM these combine acetaminophen with other drugs, doubling the depletion Acid blockers/PPIs Prilosec, Nexium, Prevacid, Zantac suppress stomach acid, impair nutrient absorption, and tax the liver Antibiotics broad-spectrum antibiotics disrupt gut flora and increase oxidative stress Cholesterol medications (statins) deplete CoQ10 and glutathione simultaneously Chemotherapy drugs massive glutathione depletion by design Tricyclic antidepressants processed through the liver, depleting glutathione in the process As pharmacist Suzy Cohen puts it: Any medication that goes through your liver can increase your requirements for glutathione