glutathione and l-citrulline Pure Nutrition L-Glutathione 500mg 15 Effervescent Tablets for Men & Women | With Vitamin C & Saff | Pure Nutrition Malate 2:1 Powder – 100g, 33 Servings Extra Strength Nitric Oxide Booster

10.1038/nature05859 114 YangB.PanJ.ZhangX

Introduction You have likely heard glutathione described as the "master antioxidant" of the human body

If they give you hesitancy with that, then thats a red flag

Araj SK, Brzezik J, Mdra-Gackowska K, Szeleszczuk (2025) Overview of Epitalonhighly bioactive pineal tetrapeptide with promising properties

Understanding the Standard Dosage Range Most people find their "sweet spot" within a specific range based on their goals: Maintenance: 250 mg to 500 mg daily is often enough to support general wellness and antioxidant balance

For context on how GHK-Cu compares to other anti-aging approaches, see our guide on GHK-Cu copper peptide research and our article on best peptides for longevity and anti-aging research