Ingredient library
Every ingredient SkinAtlas knows about — all 2165 of them. What each one does, what it works well with, and what to watch for.
36 ingredients in Preservative — page 2 of 2
Polyaminopropyl Biguanide (PHMB) is a broad-spectrum antimicrobial preservative polymer used in cosmetics, subject to regulatory scrutiny in the EU due to carcinogenicity and inhalation safety concerns.
Polyepsilon-Lysine is a natural cationic homopolymer of L-lysine produced by fermentation of Streptomyces albulus, used as a broad-spectrum antimicrobial preservative in cosmetics.
The potassium salt of benzoic acid used as a preservative in cosmetics, particularly effective in low-pH formulations against bacteria, yeasts, and molds.
A mild preservative often paired with sodium benzoate.
A longer-chain paraben preservative effective against bacteria and fungi, permitted by EU SCCS at up to 0.14% with specific restrictions on products for infants.
A silver compound with antimicrobial properties. Used in Kiku-Masamune's sake emulsion as a preservative/antimicrobial booster.
The sodium salt of p-anisic acid (naturally derived from fennel/anise), used as a mild preservative that inhibits yeast and fungal growth in cosmetic formulations.
A preservative effective in slightly acidic formulas.
The sodium salt of levulinic acid, a naturally derived preservative that disrupts microbial cell membranes; also provides mild skin conditioning and humectant benefits.
A straight-chain unsaturated carboxylic acid used as a cosmetic preservative at up to 1% concentration to prevent microbial contamination and extend product shelf life.
Extract from Thujopsis dolabrata (hiba arborvitae), a Japanese conifer related to hinoki cypress. Contains hinokitiol (beta-thujaplicin) and other terpenes with antimicrobial, antioxidant, and soothing properties. Used in Kanebo's sensitive toner.
An organic antimicrobial compound used as a preservative or preservative booster in cosmetics, typically combined with phenoxyethanol for broad-spectrum protection.