n-acetyl-l-cysteine and glutathione supplement DEAL NAC Supplement (N-Acetyl Cysteine) 1,000mg Per Serving with Reduced Glutathione, 240 Capsules – Antioxidant Support for Immune Health, Lung, & Liver Function : Health & Household NAC N-Acetyl Cysteine 600mg -
Description
Nasal delivery lets peptides reach the brain more directly through the olfactory pathway

Non-motor features of Parkinson disease

The peptide sequence is Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val

Singh et al., 2009)
