Ectoin Panthenol Sunscreen: Where the Calming Evidence Comes From
This one begins on an ingredient database page rather than in a lab. The INCIDecoder entry for panthenol says the ingredient “can reduce the irritation caused by less-nice other ingredients (e.g. fragrance, preservatives or chemical sunscreens)”[1]. Chemical sunscreens, named directly. Read that sentence once and you can see where the shopping advice comes from: put…