Secret Outlast: The Antiperspirant the EU Restricts, At Double the EU's Aluminum Limit
20% aluminum zirconium sits well above the EU's precautionary aluminum cap; the cyclopentasiloxane carrier is being phased out abroad by 2027.
Secret Outlast Completely Clean runs 20% aluminum zirconium tetrachlorohydrex gly, the EU's precautionary non-spray limit is 6.25% as aluminum by weight. The SCCS reviewed the active and cleared it on human health grounds; the cap is precautionary, not a danger ruling. What it means is that the EU treats aggregate aluminum exposure as worth monitoring, while the US OTC monograph sets no equivalent aluminum-weight cap. The cyclopentasiloxane carrier in this formula is in the same position as the rest of the deodorant category: environmental restriction incoming in the EU by 2027, unrestricted here.
The label, flagged
Aluminum Zirconium Tetrachlorohydrex Gly 20%ACTUALLY FINE
The most fearmongered ingredient in your bathroom, and the EU's own scientists found no reliable link to breast cancer or Alzheimer's. We clear it.
active
CyclopentasiloxaneCAUTION
Being phased out across the EU by 2027, but for the planet, not your body. The SCCS judged it safe for human health; the restriction is environmental.
Stearyl Alcohol
wax/emollient
Mineral Oil
PPG-14 Butyl EtherACTUALLY FINE
An emollient carrier with a clean CIR safety review and no EU or US restriction. Boring, and that's the point, not everything on a label is a villain.
Cyclodextrin
Petrolatum
Hydrogenated Castor Oil
Kaolin
FragranceCAUTION
Not a hazard in itself, but a legal black box. “Fragrance” can shield ingredients (including EU-banned ones) that you are never told are there.
C20-40 Pareth-10
PEG-derived emulsifier
Dimethicone
Corn Starch/Maltodextrin Crosspolymer
Behenyl Alcohol
wax/emollient
Source: DailyMed (NIH/FDA) NDC 69423-637, revised 8/2025. View label. Tap any flagged ingredient for the evidence.
What to use instead
The fix isn’t complicated: a fragrance-free or fully-disclosed alternative, with the ingredients flagged on this label designed out, closes these gaps at once. We pick the ones worth your money.
See cleaner deodorant picks →Editorial analysis of the publicly listed label and regulatory/peer-reviewed sources. Not medical advice, not affiliated with the brand. Verdicts are evidence-graded, we flag what the data flags and clear what it clears.