Clinical Strength Deodorant
One of the best-selling antiperspirants in the U.S. Applied daily to lymph node-adjacent skin. Contains aluminum, undisclosed fragrance chemicals, and single-use plastic packaging.
This is a rating of this specific product only — not the company. Other products from this brand may score differently.
Deodorant and antiperspirant are applied daily to the underarm — skin that is thin, often freshly shaved (increasing absorption), and directly adjacent to lymph nodes and breast tissue. Secret Clinical Strength contains aluminum chlorohydrate (which blocks sweat ducts), fragrance (a catch-all term that can legally hide hundreds of undisclosed chemicals including phthalates), and propylene glycol. The plastic applicator is single-use and non-recyclable. While the aluminum-breast cancer link remains scientifically debated, the daily application to lymph node-adjacent tissue of a product with undisclosed fragrance chemicals is a legitimate concern.
Why We Rated It This Way
Daily application to thin underarm skin adjacent to lymph nodes and breast tissue. Contains aluminum chlorohydrate, undisclosed fragrance (potential phthalates), and propylene glycol. Single-use plastic applicator.
Chemical & Health Analysis
Each chemical of concern is broken down below — what it is, where it comes from in this product, what it does to the body, and who is most at risk.
Aluminum Chlorohydrate
Active antiperspirant ingredient
Blocks sweat ducts. Aluminum accumulates in breast tissue — the clinical significance is debated, but it has been detected in breast cancer tissue samples. Absorbed more readily through shaved or irritated skin.
Fragrance (undisclosed)
Scent ingredient
'Fragrance' is a legal loophole allowing companies to hide hundreds of chemicals under one word. Common hidden chemicals include phthalates (hormone disruptors) and synthetic musks (persistent environmental contaminants).
Propylene Glycol
Carrier/moisturizer
Generally recognized as safe at low concentrations. Can cause skin irritation in sensitive individuals and enhances absorption of other chemicals through skin.
All health claims are based on published, peer-reviewed research from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.