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Refers to ground-up silver suspended in solution.
Methylchloroisothiazolinone (MCI) is a skin sensitizing organic compound used as a preservative when combined with methylisothiazolinone.
Methyldibromo glutaronitrile is a well-known skin sensitizer that has preservative properties.
Methylisothiazolinone (MI or MIT) is a skin sensitizing compound used as a preservative in cosmetics alongside methylchloroisothiazolinone (MCI).
This group of compounds is primarily used in small amounts in cosmetics as pH adjusters.
Preservative that research has shown can cause sensitization.
This cosmetics preservative is well known for its sensitizing and irritating impact on skin.
Water-soluble preservative.
Formaldehyde-releasing preservative.
Common type of preservative found in cosmetics.
Considered a weaker preservative than its "cousin" diazolidinyl urea.
Formaldehyde-releasing preservative used in cosmetics. It can be a skin sensitizer.
Derived from natural sources, this non-drying alcohol serves as a preservative in cosmetics products, and is considered one of the least-sensitizing preservatives in use.
Sodium salt of the plant metabolite p-anisic acid used as a preservative.
White, crystalline powder used to synthesise other chemicals. May function as a preservative in...
Plays a multitasking role as a preservative, stabiliser, and antioxidant.
Salt form of salicylic acid (BHA). Because it is not the acid form of salicylate (i.e., salicylic...
Trade name for diazolidinyl urea.
This gentle preservative fights both bacterial and yeast contamination in cosmetics.
An acid derived from conifer tree bark that serves as an antimicrobial agent in cosmetics.
1,2-hexanediol is a synthetic ingredient with multiple benefits in a cosmetic, from preservative to solvent.
Safe, well-tolerated preservative that can also be used to achieve an ideal pH.
Compound used as a preservative in cosmetics. It is generally considered less sensitising.
A synthetic preservative uses in amounts of 0.6% or less. Sometimes its salt form (known as sodium dehydroacetate) is used, as it is more soluble in certain types of cosmetic formulas.
Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.
Necessary to improve a formula's texture, stability, or penetration.
Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.
There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.
May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.
We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.
We have not yet rated this ingredient because we have not had a chance to review the research on it.