Ingredient library
Men’s Vitality Supplement Ingredients
Start with the mechanism, then evaluate each ingredient by dose, endpoint, population and safety.
Core ingredient guides
L-Citrulline
Nitric-oxide precursor pathway.
L-Arginine
Direct nitric-oxide substrate.
Beetroot
Dietary nitrate pathway.
Nitric Oxide
Understand the shared mechanism.
How we read supplement research
We avoid the common shortcut “ingredient has a study → product works.” The relevant questions are what was studied, at what dose, in whom, against what comparator, and for which outcome.