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theskindex
Wednesday, October 14, 2026Index last updated Oct 14
The Index

Every ingredient, graded

INCI names in monospace, evidence grade at the row end, limits by region on every entry. Filter by what it does, what it's for, and where it's permitted.

IngredientEvidence
ArginineFunctional
Citric AcidFunctional
Dipotassium PhosphateFunctional
Disodium PhosphateFunctional
Glycolic acidModerate
IsobutaneFunctional
Lactic acidModerate
Potassium HydroxideFunctional
Potassium PhosphateFunctional
RetinolStrong
Salicylic acidStrong
Sodium HydroxideFunctional
Sodium PhosphateFunctional
SqualaneModerate
TriethanolamineFunctional
TromethamineFunctional