Dry shampoo

Why it's rated this way

3 ingredients on this label are flagged. A cosmetic's rating is set by its most serious finding — here, Propane.

1. PropaneMinor concernAerosol propellant. The EU prohibits propane only when it contains 0.1 % or more of 1,3-butadiene, a carcinogen; cosmetic-grade propellant is purified below that level.

   What it is

   Its recorded role: propellant. About Propane

   Why it's flagged

   Aerosol propellant. The EU prohibits propane only when it contains 0.1 % or more of 1,3-butadiene, a carcinogen; cosmetic-grade propellant is purified below that level.

   Regulatory basis

   Greenveil's curated cosmetic-ingredient concern list. The listing applies only under conditions a label can't show (product type, concentration or use).

   How sure we are

   High confidence. The label names this substance exactly; whether the conditions apply depends on the product's formula.

2. Cetrimonium ChlorideMinor concernHair-conditioning quaternary ammonium. It irritates skin and eyes at high strength, so the EU caps it (other than as a preservative) at 2.5 % in rinse-off hair products, 1 % in leave-on hair products and 0.5 % in leave-on face products — the levels the SCCS found safe.

   What it is

   Its recorded role: preservative and antimicrobial. About Cetrimonium Chloride

   Why it's flagged

   Hair-conditioning quaternary ammonium. It irritates skin and eyes at high strength, so the EU caps it (other than as a preservative) at 2.5 % in rinse-off hair products, 1 % in leave-on hair products and 0.5 % in leave-on face products — the levels the SCCS found safe.

   Regulatory basis

   EU Cosmetics Regulation, Annex III — allowed only within set limits and conditions; Greenveil's curated cosmetic-ingredient concern list.

   How sure we are

   High confidence. The label names this substance exactly.

3. IsobutaneMinor concernAerosol propellant. The EU prohibits isobutane only when it contains 0.1 % or more of 1,3-butadiene, a carcinogen; cosmetic-grade propellant is purified below that level.

   What it is

   Its recorded role: propellant. About Isobutane

   Why it's flagged

   Aerosol propellant. The EU prohibits isobutane only when it contains 0.1 % or more of 1,3-butadiene, a carcinogen; cosmetic-grade propellant is purified below that level.

   Regulatory basis

   EU Cosmetics Regulation, Annex II — substances prohibited in cosmetics; EU classification as carcinogenic, mutagenic or toxic to reproduction; Greenveil's curated cosmetic-ingredient concern list. The listing applies only under conditions a label can't show (product type, concentration or use).

   How sure we are

   High confidence. The label names this substance exactly; whether the conditions apply depends on the product's formula.

Assessed against the label as captured: all 24 ingredients recognised.