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Scott, M.D
Access this article Similar content being viewed by others REFERENCES Fernandez-Montero, J.V., Corral, O., Barreiro, P., and Soriano, V., Intern
Kennedy said he is a big fan of peptides and has used them himself
Replenishing physiological levels of GHK-Cu has been shown to aid in powerful regenerative and reparative longevity actions including collagen and elastin synthesis, DNA repair, stem cell renewal processes, healthy inflammatory, neurological, and cardiovascular function, and a reset to epigenetic programming
Neuro and cardiac protection, Assists healing the gut (ibs and leaky gut), Improves immunity and sleep
How to implement: Dosing: 20-40 grams daily (post-workout or as snack) Choose undenatured whey (cold-processed, preserves bioactive peptides) Whey protein isolate (higher protein content, lower lactose) Best sources: Grass-fed whey isolate : Highest cysteine content Undenatured whey concentrate : Preserves immunoglobulins and glutathione precursors Avoid heat-treated : Heat denatures cysteine Timing: Post-workout (supports muscle recovery + glutathione synthesis) Morning (with breakfast) For vegans: Pea protein isolate : Lower in cysteine but can be paired with NAC Hemp protein : Moderate cysteine content Evidence: A randomized trial found that 20 grams of whey protein daily for 3 months increased lymphocyte glutathione by 35% and improved immune markers in HIV patients [15]
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