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.
25 ingredients
| Ingredient | INCI | Function | Typical % | Updated | Evidence |
|---|---|---|---|---|---|
| Adapalene | Adapalene | Retinoid, Anti-inflammatory, Keratolytic | 0.1–0.3 % | 27 Aug 2026 | Strong |
| Arginine | Arginine | Humectant, pH adjuster | — | 5 Oct 2026 | Functional |
| Ascorbic acid | Ascorbic Acid | Antioxidant, Brightening | 10–20 % | 19 Sept 2026 | Strong |
| Azelaic acid | Azelaic Acid | Brightening, Anti-inflammatory, Antimicrobial, Keratolytic | 10–20 % | 19 Sept 2026 | Strong |
| Bakuchiol | Bakuchiol | Antioxidant, Retinoid | 0.5–1 % | 19 Sept 2026 | Limited |
| Butylene Glycol | Butylene Glycol | Humectant, Solvent | 1–20 % | 5 Oct 2026 | Functional |
| Caprylyl Glycol | Caprylyl Glycol | Humectant, Preservative | — | 5 Oct 2026 | Functional |
| Dipropylene Glycol | Dipropylene Glycol | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| Glycerin | Glycerin | Humectant, Barrier repair | 2–10 % | 19 Sept 2026 | Strong |
| Glycolic acid | Glycolic Acid | Humectant, Exfoliant | 5–10 % | 19 Sept 2026 | Moderate |
| Hexylene Glycol | Hexylene Glycol | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| Hyaluronic acid | Sodium Hyaluronate | Humectant | 0.1–2 % | 19 Sept 2026 | Moderate |
| Lactic acid | Lactic Acid | Humectant, Exfoliant | 5–10 % | 19 Sept 2026 | Moderate |
| Methylpropanediol | Methylpropanediol | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| Niacinamide | Niacinamide | Brightening, Anti-inflammatory, Barrier repair, Sebum regulating | 2–5 % | 19 Sept 2026 | Strong |
| PEG-12 | PEG-12 | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| Panthenol | Panthenol | Humectant, Anti-inflammatory, Barrier repair, Soothing | 1–5 % | 19 Sept 2026 | Moderate |
| Pentylene Glycol | Pentylene Glycol | Humectant, Solvent, Preservative | — | 5 Oct 2026 | Functional |
| Propanediol | Propanediol | Humectant, Solvent | 1–20 % | 5 Oct 2026 | Functional |
| Propylene Glycol | Propylene Glycol | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| Retinal | Retinal | Retinoid | 0.03–0.1 % | 19 Sept 2026 | Moderate |
| Retinol | Retinol | Exfoliant, Retinoid | 0.1–1 % | 19 Sept 2026 | Strong |
| Sodium ascorbyl phosphate | Sodium Ascorbyl Phosphate | Antioxidant, Brightening, Antimicrobial | 1–5 % | 19 Sept 2026 | Moderate |
| Tranexamic acid | Tranexamic Acid | Brightening, Anti-inflammatory | 2–5 % | 19 Sept 2026 | Moderate |
| Urea | Urea | Humectant, Barrier repair, Keratolytic | 5–10 % | 20 Aug 2026 | Strong |