What does Quinine do in skincare?

Quinine functions as a denaturant, hair conditioning agent in cosmetic formulas.

Is Quinine allowed in cosmetics?

Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.

What products contain Quinine?

It is most commonly found in Haircare products, especially scalp treatments (100% of its uses).

Quinine

Quinine is a cosmetic ingredient used as a denaturant, hair conditioning agent. It is used in 1 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex). PubMed carries 210 studies of its skin or topical use.

INCI name	QUININE
Function	DENATURANT, HAIR CONDITIONING, FRAGRANCE
CAS number	130-95-0
EC number	205-003-2
Prevalence	1 products (0% of dataset)
Most used in	Haircare
EU status	Restricted (annex )
Scientific studies	210 on PubMed (skin/cosmetic/topical)
Monthly searches	40,500

Used in

Frequently asked

What does Quinine do in skincare?: Quinine functions as a denaturant, hair conditioning agent in cosmetic formulas.
Is Quinine allowed in cosmetics?: Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
What products contain Quinine?: It is most commonly found in Haircare products, especially scalp treatments (100% of its uses).

Manufacturers with experience using Quinine

Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.