First isolated in 1973 by Dr
Plasma and tissue GSH levels decline with age, while markers of oxidative damage increase, creating a "redox imbalance" implicated in the pathogenesis of age-related diseases [2][3][10][11]
The native peptide has limited blood-brain barrier penetration, which is part of why some recent research has focused on DSIP fusion peptides combined with cell-penetrating sequences (like Tat) to improve CNS delivery
Now, they only offer Put Me To Sleep Naturally, Happy Saffron Plus, Brain & Body Power, Serotonin Mood Support, and Focus & Energy, but you can still try any one of them for free for up to 14 days
However, speak to a doctor if you plan to incorporate it into a treatment plan for a specific medical condition