Niacinamide: What Concentration Bands Actually Show Up in Trials
Clinical papers often test 4% or 5% niacinamide for pigment and appearance endpoints. What those bands show, and what CIR use tables covered.
Clinical papers often test 4% or 5% niacinamide for pigment and appearance endpoints. What those bands show, and what CIR use tables covered.
Two ways to keep water-based skincare free of microbes. We map what safety reviews and lab studies show, and why the finished formula matters.
Three vitamin A relatives with very different evidence behind them. We map what studies show for ageing skin and acne, and how each is regulated.
US safety reviewers are examining six crosslinked hyaluronic acid salts used in serums. How they differ from regular HA, and what the draft report covers.
A US panel's October packet revisits nail-gel photoinitiators. What they do, how salon and at-home use differ, and what under review means.
The US medicines regulator is taking two legacy UV filters off the over-the-counter sunscreen list after deciding the safety case no longer supports everyday shelf use. The order was issued on 10 September 2026 and cannot take effect for at least a year. Shoppers do not need to throw anything out; most bottles never used them.
A US cosmetic safety panel is one meeting away from closing an amended review of four gallate antioxidants used to keep formulas stable. The draft still says safe when products are made not to irritate or sensitise.
Bee resin shows up in soothing creams and “repair” serums, but a new Cosmetic Ingredient Review memo says the hard part is matching the science to the exact ingredients on the label. The panel meets in early October to decide how to proceed.
Europe capped kojic acid at 1% for face and hand leave-ons after a safety review. Canada's Cosmetic Ingredient Hotlist still has no entry for it.