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Ingredient dossier · No. 014

Aluminum Chlorohydrate

Also: ACH · aluminum chlorhydrate · basic aluminum chloride · aluminum chlorohydrex


Use cautionhigh consumer concern but evidence for direct testosterone or cancer effects is weak; aluminum-free alternatives are widely available.


01 · Hormonal impact

Testosterone & hormonal load

Evidence
WeakIn vitro only or single study

Aluminum chlorohydrate is the active ingredient in most antiperspirants, blocking sweat ducts in the underarm area. Direct testosterone-disrupting effects in humans are not well established. Some research suggests aluminum salts can exhibit weak estrogenic activity at the estrogen receptor (Darbre et al.), and concerns exist about lymph node accumulation near breast tissue. The SCCS concluded insufficient evidence to confirm endocrine disruption. Easy to switch to aluminum-free deodorant if concerned.


02 · Where it appears

Found in.

01Antiperspirant deodorant (stick, roll-on, spray)
02Clinical-strength antiperspirant

03 · The regulators

Two jurisdictions, two different verdicts.

European Union

SCCS/1613/19 concluded existing data insufficient to confirm safety or endocrine risk. Aluminum compounds in cosmetics under ongoing review.

United States · FDA

Regulated as OTC drug; permitted in antiperspirants under 21 CFR 350. Maximum concentrations defined; considered safe and effective by FDA.


04 · Sources

The receipts.

  1. [01]
  2. [02]
    EU SCCS/1613/19 — Safety of aluminum in cosmetics
    ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_235.pdf
  3. [03]
    FDA — OTC Monograph M019: Antiperspirant Drug Products
    www.accessdata.fda.gov/scripts/cder/omuf/index.cfm?OTC=M019&event=monograph

05 · Related dossiers
01Aluminum (in Deodorant)C · 45
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