Database/Hair Dyeing/1,2,4-Trihydroxybenzene
100% petroleum · ISO 16128

Is 1,2,4-Trihydroxybenzene natural?

No. Synthetic phenolic hair-dye intermediate manufactured from petrochemical aromatic feedstocks.

INCI name1,2,4-Trihydroxybenzene
CAS533-73-3
FormulaC6H6O3 · 126.11 Da
FunctionHair Dyeing
Feedstock1,2,4-Trihydroxybenzene is produced by chemical synthesis from petrochemical…

How we scored it

Benzene-1,2,4-triol, C6H6O3; synthetic aromatic phenol, no natural fragment.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

1,2,4-Trihydroxybenzene is produced by chemical synthesis from petrochemical phenolic intermediates. It is not commercially extracted from a natural source.

In plain English

A synthetic phenol-type chemical used as a colour developer in permanent hair dyes. It combines with other dye ingredients to form the final hair colour.

CosIng definition: 1,2,4-Trihydroxybenzene is the phenol that conforms to the formula:

Natural alternatives with the same function

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A salt formed from bismuth metal and citric acid, a natural fermentation-derived fruit acid, used to buffer, chelate…

 Dihydroxyacetone 100% natural origin

The active self-tanning ingredient that reacts with skin's surface proteins to produce a temporary bronze colour; made by…

 Epicatechin 100% natural origin

An antioxidant compound naturally found in tea and cocoa, used in skin, hair and oral care. It's extracted…

 Lawsonia Inermis Extract 100% natural origin

A plant extract from the henna shrub, used to condition hair and skin and add a reddish tint.…

 Pyrogallol 100% natural origin

A hair-dye ingredient traditionally made by heating gallic acid, itself extracted from plant tannins in gallnuts, until it…

Structure

2D structure of 1,2,4-Trihydroxybenzene

benzene-1,2,4-triol

PubChem CID 10787 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 21,2,4-Trihydroxybenzene. PubChem CID 10787. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 31,2,4-TRIHYDROXYBENZENE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 41,2,4-TRIHYDROXYBENZENE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=1%2C2%2C4-TRIHYDROXYBENZENE