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Find what it does, what the research suggests, and what is still uncertain. Concern labels describe ingredient context—not a product safety verdict.
Isopropylparaben is a cosmetic ingredient used for preservative.
Commonly found in: Moisturizers
Malassezia context: Evidence gap
General skin evidence · Evidence gap · Cosmetic / regulatory assessment
Read evidence and limitations →Laurtrimonium Chloride is a cosmetic ingredient used for antistatic, preservative, and surfactant - emulsifying.
Commonly found in: Cleansers & body washes
Malassezia context: Evidence gap
General skin evidence · Evidence gap · Cosmetic / regulatory assessment
Read evidence and limitations →Lawsonia Inermis Extract is a cosmetic ingredient used for antimicrobial, antioxidant, hair conditioning, and hair dyeing.
Commonly found in: Shampoos
Malassezia context: Evidence gap
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General skin evidence · Evidence gap · Cosmetic / regulatory assessment
LEUCONOSTOC FERMENT FILTRATE is recorded in the retained cosmetic source index with functions including anti_seborrheic, antimicrobial, hair_conditioning, skin_conditioning. Function is not treated as proof of skin safety.
Commonly found in: Shampoos
Malassezia context: Evidence gap
General skin evidence · Evidence gap
Read evidence and limitations →Leuconostoc/radish Root Ferment Filtrate is a cosmetic ingredient used for anti-seborrheic and antimicrobial.
Commonly found in: Shampoos
Malassezia context: Evidence gap
General skin evidence · Evidence gap · Cosmetic / regulatory assessment
Read evidence and limitations →Magnolia Officinalis Bark Extract is a cosmetic ingredient used for antimicrobial and skin conditioning.
Commonly found in: Moisturizers
Malassezia context: Evidence gap
General skin evidence · Evidence gap · Cosmetic / regulatory assessment
Read evidence and limitations →Mdm Hydantoin is a cosmetic ingredient used for antimicrobial.
Commonly found in: Moisturizers
Malassezia context: Evidence gap
General skin evidence · Evidence gap · Cosmetic / regulatory assessment
Read evidence and limitations →MELALEUCA ALTERNIFOLIA LEAF WATER is recorded in the retained cosmetic source index with functions including anti_sebum, antimicrobial, astringent, tonic. Function is not treated as proof of skin safety.
Commonly found in: Moisturizers
Malassezia context: Evidence gap
General skin evidence · Evidence gap
Read evidence and limitations →Methyl Benzoate is a cosmetic ingredient used for fragrance, preservative, skin conditioning - emollient, and solvent.
Malassezia context: Evidence gap
General skin evidence · Evidence gap
Read evidence and limitations →Methylchloroisothiazolinone, often shortened to MCI, is an isothiazolinone preservative used to limit microbial growth in products.
Commonly found in: Cleansers & body washes
Malassezia context: Evidence gap
General skin evidence · Evidence gap
Read evidence and limitations →Methylisothiazolinone, often shortened to MI, is an isothiazolinone preservative used to limit microbial growth in products.
Commonly found in: Cleansers & body washes
Malassezia context: Evidence gap
General skin evidence · Evidence gap
Read evidence and limitations →Methylparaben is a defined preservative used to help limit microbial spoilage in cosmetic formulas.
Commonly found in: Cleansers & body washes
Malassezia context: Evidence gap
General skin evidence · Evidence gap
Read evidence and limitations →Search the complete ingredient name index. Published ingredient guides explain the seb-derm concern interpretation, supporting evidence, and limitations.
