“Phenylbenzimidazole Sulfonic Acid?”Here!Ensulizole
Hasn’t appeared in a scanned product yet.
In personal care
A synthetic organic compound used specifically as a sunscreen active ingredient.
Why it’s used
It absorbs UVB radiation, helping protect skin from sunburn in sunscreen and some daily-wear SPF products.
What the evidence says
The FDA recognizes Ensulizole as a sunscreen active ingredient; it was included among ingredients the FDA requested more data on in its 2019 proposed sunscreen rule, not because of a specific finding of harm but to update safety data to current standards given systemic absorption findings common to several sunscreen actives.
Context
The FDA's 2019 and 2021 proposed rules note that several sunscreen actives, including this one, are absorbed into the bloodstream at levels above a threshold that triggers a request for additional safety data; this does not by itself indicate harm.
No claims graded here yet.