The ingredient, explained

Curcuma Longa Root Extract

A small study tested turmeric root extract emulsions for skin coloring.

MaskingPerfuming

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Ingredient guide

What it is and what it does

Curcuma Longa Root Extract is an extract of the rhizomes of the Turmeric, Curcuma longa L., Zingiberaceae

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Masking: Reduces or conceals the formula's underlying odour or taste.
Perfuming: A formulation role for perfume and aromatic raw materials that give a product its scent.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗ · Danish Environmental Protection Agency: Cosmetic fragrance functions ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Human topical research

The tested emulsions left a measurable yellow color, including after removal.

What this does not tell us

This shows coloring under the study conditions, not melanin lightening or lasting clinical benefit.

Sources for this summary. PubMed 25284937 ↗

Research review checked Oct 1, 2026

Read exact local candidate abstracts first; select identity-relevant papers; targeted primary PubMed/publisher searches. This is not an exhaustive systematic review.

Ingredient research is not proof that a product containing this ingredient works.