The propellant used in dry shampoo usually consists of butane, isobutane, and propane, which makes up 70–90% of the total composition.
In addition, dry shampoos also often contain anionic surfactants that do not dissolve in water.
Valisure (an independent quality assurance lab) conducted a study on popular dry shampoo brands and found 70% of dry shampoo samples tested had benzene in them. Frequently inhaling benzene at levels of 0.4 parts per billion over time could cause cancer per 100,000 people, according to the Environmental Protection Agency.
Benzene is one of the most widely produced chemicals in the world. A highly volatile liquid, benzene is used in making gasoline and as a solvent in many chemical and pharmaceutical products. Benzene may be found in glues, adhesives, cleaning products, paints, tobacco smoke, gasoline…
Valisure detected benzene in hand sanitizers, sunscreens, deodorant, dry shampoos, conditioners, antiperspirants, deodorants, body sprays and anti-fungal treatments.
The contamination has been most frequently detected in aerosol (spray) products.
Exposure to benzene increases the risk of developing leukemia and other blood disorders.
IARC (International Agency for Research on Cancer) classifies benzene as “carcinogenic to humans,” based on sufficient evidence that it causes acute myeloid leukemia (AML). IARC also notes that benzene exposure has been linked with acute lymphocytic leukemia (ALL), chronic lymphocytic leukemia (CLL), multiple myeloma, and non-Hodgkin lymphoma.
Even in EU, Benzene that is classified as a Carcinogen Category 1A is allowed to be present in cosmetic product up to 0.1%.
Unilever recently announced a recall of multiple aerosol dry shampoo products due to contamination with a carcinogen called benzene.
It is easy to find the research that supports those claims see below for *Sources.
At Oh Lou Lou! we are so strict on the ingredients choice that we exclusively use 100% natural, organic certified ingredients that you can eat.
You heard it right - Dry shampoo Busy Girls’ Secret, like all of our products is made with edible ingredients!
Spread it with hands or with your make-up brush. Allow the powder to set for couple of minutes, then brush thoroughly.
Tip: LESS IS MORE. Over-application can make your hair look chalky. Also don’t wait until your hair is super-greasy. The shampoo should be used as soon as the hair starts showing first signs of oiliness.
Theobroma Cacao (Cocoa) Powder*, Maranta Arundinacea (Arrowroot) Root Powder,* Citrus Limon (Lemon) Peel Oil*, (Limonene, Linalool, Citral)**. *Organic **Naturally occurring in essential oils
Apply it, let it set for few minutes then brush thoroughly.
For external use only. Avoid direct eye contact. If irritation occurs discontinue use.
Keep at room temperature away from direct sunlight.
European Union (EU): According to the European Commission Cosmetics Directive (76/768/EEC), benzene cannot be present as a constituent of other substances, or in mixtures, in concentrations equal to, or greater than 0.1% by weight (Cosing, 2022)