Beta-Glucan Skincare: The Strongest Evidence Comes From Wounds, Not Faces
Beta-glucan holds water and forms a film — but the human trials behind it come from ulcers and burns, not intact faces. What a molecule this size can actually do.
Is 10% Niacinamide Better Than 5%? What the Trials Actually Tested
Every human trial behind niacinamide's reputation used 2%, 4% or 5% — and Korean law stops the whitening claim at 5%. A look at what the shelf is actually selling you.