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
Not applicable as a direct cosmetic ingredient
Defined Cell Culture Media 16
Defined Cell Culture Media 16 is a lab reagent for growing cells, not a proven skincare ingredient; its presence on a label may indicate a ferment or extract base, but direct skin benefits are unsubstantiated.
Irritation
low
Source
biotech
This is a lab tool, not a skincare ingredient you apply—it helps grow cells that may later create cosmetic actives.
Irritation
low
Source
biotech
A lab-grown nutrient cocktail that may support skin cell health, but research is still early and the ingredient is not yet widely studied in cosmetics.
Irritation
low
Source
biotech
This is a lab-grade cell culture medium, not a proven cosmetic ingredient—its role in skincare is experimental and lacks safety data for topical use.
Irritation
low
Source
biotech