Recently, an in vitro study by Tyagi (1998) demonstrated that homocysteine (10 mol/L) induces human vascular smooth muscle cell proliferation and collagen expression
Spana (2005) Co-administration of low doses of intranasal PT-141, a melanocortin receptor agonist, and sildenafil to men with erectile dysfunction results in an enhanced erectile response Urology, Volume 65, Issue 4, April 2005, Pages 755-759
Why might vitamin C help glutathione stores
It has reproducible results across multiple large-scale trials
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Research in animal models suggests it may improve tissue function, enhance organ health, and promote longevity