10.3389/fphys.2020.00794 18 CristofanoM
Vitamin C (ascorbic acid), beta glucan 1-3,1-6 yeast, lysine monohydrate, capsule shell (hydroxypropyl methylcellulose), black elderberry extract ( Sambucus nigra whole fruit), N-acetyl cysteine, zinc citrate, vitamin D3 (cholecalciferol), vitamin A (retinol acetate)
Pharmacokinetics: administered as eye drops, or topically to the skin does not readily cross the blood brain barrier due to a low lipid solubility
Subtle improvements may appear within 12 months, with clearer results over 36 months
L-Glycine 400mg per daily serving one of the three amino acids that form the glutathione tripeptide structure