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Supplement smartly: N-acetylcysteine (NAC) and whey protein support GSH (glutathione) synthesis

Theoretical pairings appear in community discussion, but none are clinically validated, and combining experimental compounds compounds the unknowns

But testing can cost $200 to $500 or more per sample

Cornea provides most focusing power through curved transparent surface

Because oral glutathione is largely broken down in the digestive tract, we deliver it as a fast-absorbing nasal spray that bypasses the gut absorbing directly through the nasal lining for a more efficient, more direct route into your system

Reported rationale: peak GI effect is concentrated to a single day rather than smeared across the week