A cellular messenger that may help support skin firmness and resilience, but research in topical cosmetics is still limited.
Irritation
low
Source
biotech
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
A cellular messenger that may help support skin firmness and resilience, but research in topical cosmetics is still limited.
Irritation
low
Source
biotech
A cell-signaling molecule that may help strengthen the skin barrier and improve hydration, but research is still early.
Irritation
low
Source
synthetic
Uridine is a gentle, naturally derived ingredient that may help support skin renewal and barrier repair, but research is still early.
Irritation
low
Source
biotech