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4
4-hydroxypropylamino-3-nitrophenolQuestionableA direct-acting nitrophenol compound primarily utilized in hair coloring formulations for its toning properties. This wa...
- 4-isobutylresorcinolEssential
A highly potent tyrosinase inhibitor that outperforms traditional brightening agents like hydroquinone and kojic acid in...
- 4-methoxytoluene-2,5-diamine HclAvoid
A synthetic aromatic amine compound functioning as an oxidative colorant precursor, primarily used in permanent hair dye...
- 4-methyl-1-oxaspiro-4-undecanolInsufficient Data
A specialized cyclic ether-alcohol compound that serves as a fragrance component in cosmetic formulations. This spiro-co...
- 4-methyl-1-oxaspiroundeceneOptional
A synthetic fragrance molecule that delivers herbal, woody, and camphor-like scent notes while serving as an odor masker...
- 4-methyl-1-phenyl-2-pentanolValuable
A selective antimicrobial alcohol that targets odor-causing bacteria while preserving beneficial skin flora. Commerciall...
- 4-methyl-2-phenyl-2-pentenalOptional
Also known as Cocoa Pentenal, this synthetic fragrance molecule delivers a distinctive cocoa-like, honey-sweet aroma to...
- 4-methyl-2-phenylethyl-1,3-dioxolaneOptional
A volatile acetal compound primarily utilized as a fragrance ingredient in cosmetic formulations. This oil-soluble aroma...
- 4-methyl-3-decen-5-olQuestionable
An oily alcohol compound that serves primarily as a fragrance ingredient with secondary emollient properties. While it p...
- 4-methyl-4-phenyl-2-pentanoneOptional
A synthetic aromatic compound primarily valued for its distinctive woody, vetiver-like fragrance profile in cosmetic for...
- 4-methyl-7-geranyloxycoumarinValuable
A sophisticated synthetic coumarin derivative engineered to target multiple pathways in melanin production, making it a...
- 4-methylbenzaldehydeOptional
4-Methylbenzaldehyde is an aromatic aldehyde compound that serves exclusively as a fragrance ingredient in cosmetic form...
- 4-methylbenzyl 4,5-diamino Pyrazole SulfateQuestionable
A synthetic coal tar derivative primarily engineered as an oxidative hair dye precursor that creates permanent color thr...
- 4-methylbenzylidene CamphorAvoid
A chemical UV filter that absorbs UVB radiation and stabilizes other sunscreen ingredients, though recent safety evaluat...
- 4-methylen-2,6-epoxydecaneOptional
A heterocyclic organic compound functioning primarily as a fragrance ingredient in cosmetic formulations. This tetrahydr...
- 4-methylpent-3-en-2-oneQuestionable
Also known as Mesityl Oxide, this alpha-beta unsaturated ketone functions primarily as a fragrance component in cosmetic...
- 4-methylpentan-2-olOptional
4-Methylpentan-2-ol, also known as Methyl Isobutyl Carbinol (MIBC), is a secondary aliphatic alcohol that serves dual fu...
- 4-methylpentane-2,3-dioneOptional
An alpha-diketone compound that serves exclusively as a fragrance ingredient, imparting distinctive buttery and creamy s...
- 4-methylquinolineAvoid
A heterocyclic aromatic compound primarily employed as a fragrance ingredient in cosmetic formulations. Also known as le...
- 4-methylvinylcyclohexene-1-methyl AcetateOptional
A fragrance ester that delivers citrus-woody notes to skincare formulations while potentially offering mild antimicrobia...
