Formaldehyde
preservativeCritical concern
100/100
Ingredients
Explore ingredient evidence
Start from the ingredients people ask about most, or browse the full index below. Each profile carries its concern band, regulatory context, evidence and the products it appears in.
Featured
The 36 ingredients people ask about most
Critical concern8 ingredients
Hydroquinone
antioxidantCritical concern100/100
Bisphenol a
not reportedCritical concern100/100Diethylhexyl phthalate
solventCritical concern100/100
Dibutyl phthalate
solventCritical concern100/100Lead and its compounds
beautyCritical concern100/100
Butylphenyl methylpropional
perfumingCritical concern100/100Retinoic acid
not reportedCritical concern100/100
High concern11 ingredients
Titanium dioxide
uv filterHigh concern70/100
Limonene, (+)-
solventHigh concern70/100
Linalool
deodorantHigh concern70/100
Geraniol
tonicHigh concern70/100
Eugenol
tonicHigh concern70/100
Coumarin
perfumingHigh concern70/100
Butylated hydroxytoluene
antioxidantHigh concern70/100
Sodium nitrite
anticorrosiveHigh concern70/100
FD&C red no. 40
colorantHigh concern70/100
Talc
abrasiveHigh concern70/100
Salicylic acid
preservativeHigh concern70/100
Minor concern8 ingredients
Phenoxyethanol
preservativeMinor concern20/100
2-Hydroxy-4-methoxybenzophenone
uv filterMinor concern20/100
Zinc oxide
uv filterMinor concern20/100Triclosan
preservativeMinor concern20/100
DMDM hydantoin
preservativeMinor concern20/100Butyl methoxydibenzoylmethane
uv filterMinor concern20/100Sodium butylparaben
preservativeMinor concern20/100Gold
antimicrobialMinor concern20/100
Low concern6 ingredients
Carbonated water
foodLow concern0/100
High Fructose Corn Syrup
industrialLow concern0/100
Hyaluronate sodium
humectantLow concern0/100Glyceryl monostearate
skin conditioning - emollientLow concern0/100
Palmitic acid
skin conditioning - emollientLow concern0/100
Aloe Barbadensis Leaf Juice
HumectantLow concern0/100
Not assessed3 ingredients
In the catalog, but with no published hazard evidence yet. “Not assessed” is a gap in our data, not a verdict that these are safe.
Full index
Every ingredient with a profile
Around 20,500 of the 1.33 million ingredients in the corpus carry enough signal — a concern score, a hazard classification or a known function — to have a profile worth reading. These are those. They are listed by how many products they appear in — 1,000+, 100+, 10+, 1+, then none — and, within each tier, highest concern first.