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Research suggests that L-arginine supplements are generally safe for most people, even when taken in high doses for long periods
The documented benefits extend beyond theoretical longevity: improved sleep quality and circadian rhythm regulation through pineal gland support, enhanced immune function markers, normalized melatonin production in aging individuals, reduced oxidative stress, improved skin elasticity and appearance, and potential disease prevention through cellular optimization
Chronic liver disease, uncontrolled diabetes, and severe thyroid dysfunction all alter peptide pharmacokinetics and blunt reproductive response
"The companies and the FDA, no one's identified an endgame with these drugs," Kessler says
As an antioxidant, glutathione neutralizes free radicals generated by UV radiation, reducing oxidative stress and protecting skin cells from damage
Dementia and cognitive decline
