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.
41 ingredients
| Ingredient | INCI | Function | Typical % | Updated | Evidence |
|---|---|---|---|---|---|
| 1,2-Hexanediol | 1,2-Hexanediol | Solvent, Preservative | — | 5 Oct 2026 | Functional |
| Adapalene | Adapalene | Retinoid, Anti-inflammatory, Keratolytic | 0.1–0.3 % | 27 Aug 2026 | Strong |
| Allantoin | Allantoin | Keratolytic, Soothing | 0.5–2 % | 5 Aug 2026 | Limited |
| Arginine | Arginine | Humectant, pH adjuster | — | 5 Oct 2026 | Functional |
| Azelaic acid | Azelaic Acid | Brightening, Anti-inflammatory, Antimicrobial, Keratolytic | 10–20 % | 19 Sept 2026 | Strong |
| Behentrimonium Methosulfate | Behentrimonium Methosulfate | Emulsifier, Conditioning agent | — | 5 Oct 2026 | Functional |
| Benzoic Acid | Benzoic Acid | Preservative | — | 5 Oct 2026 | Functional |
| Benzoyl peroxide | Benzoyl Peroxide | Antimicrobial, Keratolytic | 2.5–10 % | 3 Sept 2026 | Strong |
| Benzyl Alcohol | Benzyl Alcohol | Preservative | — | 5 Oct 2026 | Functional |
| Butylene Glycol | Butylene Glycol | Humectant, Solvent | 1–20 % | 5 Oct 2026 | Functional |
| Caprylyl Glycol | Caprylyl Glycol | Humectant, Preservative | — | 5 Oct 2026 | Functional |
| Chlorphenesin | Chlorphenesin | Preservative | 0.1–0.3 % | 5 Oct 2026 | Functional |
| Cocoyl Hydrolyzed Collagen | Cocoyl Hydrolyzed Collagen | Surfactant, Conditioning agent | — | 5 Oct 2026 | Functional |
| Decylene Glycol | Decylene Glycol | Preservative | — | 5 Oct 2026 | Functional |
| Dipropylene Glycol | Dipropylene Glycol | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| Ethylhexylglycerin | Ethylhexylglycerin | Preservative, Conditioning agent | — | 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 |
| Iodopropynyl Butylcarbamate | Iodopropynyl Butylcarbamate | Preservative | — | 5 Oct 2026 | Functional |
| Lactic acid | Lactic Acid | Humectant, Exfoliant | 5–10 % | 19 Sept 2026 | Moderate |
| Methylparaben | Methylparaben | Preservative | — | 5 Oct 2026 | Functional |
| Methylpropanediol | Methylpropanediol | Humectant, Solvent | — | 5 Oct 2026 | Functional |
| 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 |
| Phenoxyethanol | Phenoxyethanol | Preservative | 0.1–1 % | 5 Oct 2026 | Functional |
| Polyaminopropyl Biguanide | Polyaminopropyl Biguanide | Preservative | — | 5 Oct 2026 | Functional |
| Potassium Cocoyl Hydrolyzed Collagen | Potassium Cocoyl Hydrolyzed Collagen | Surfactant, Conditioning agent | — | 5 Oct 2026 | Functional |
| Potassium Sorbate | Potassium Sorbate | 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 |
| Propylparaben | Propylparaben | Preservative | — | 5 Oct 2026 | Functional |
| Salicylic acid | Salicylic Acid | Exfoliant, Anti-inflammatory, Sebum regulating, Keratolytic | 0.5–2 % | 19 Sept 2026 | Strong |
| Sodium Benzoate | Sodium Benzoate | Preservative | — | 5 Oct 2026 | Functional |
| Sodium Cocoyl Hydrolyzed Collagen | Sodium Cocoyl Hydrolyzed Collagen | Surfactant, Conditioning agent | — | 5 Oct 2026 | Functional |
| Sorbic Acid | Sorbic Acid | Preservative | — | 5 Oct 2026 | Functional |
| TEA-Cocoyl Hydrolyzed Collagen | TEA-Cocoyl Hydrolyzed Collagen | Surfactant, Conditioning agent | — | 5 Oct 2026 | Functional |
| Urea | Urea | Humectant, Barrier repair, Keratolytic | 5–10 % | 20 Aug 2026 | Strong |
| p-Anisic Acid | p-Anisic Acid | Preservative | — | 5 Oct 2026 | Functional |