Tag

#niacinamide

Every article tagged niacinamide, newest first.

product-science
NAD+ Skincare Has a Precursor Problem

NAD+ creams are everywhere, but the molecule is too large and unstable to absorb through skin. What most formulas actually contain, and what the evidence shows.

June 5, 2026 · Maya Chen
product-science
Niacinamide and vitamin C: the incompatibility myth, debunked

The rule against layering niacinamide with vitamin C traces to old tube-test chemistry. Here is what actually deactivates ascorbic acid, and what does not.

May 7, 2026 · Maya Chen