Boric Acid
Boric Acid
Mild antimicrobial / pH buffer. Subject to use-context concentration caps and a children-under-3 prohibition. Source: Health Canada Cosmetic Ingredient Hotlist (restricted list), compiled from docs/cosmetic-ingredient-database.json. Verify against the live canada.ca Hotlist before relying on it.
Last reviewed April 27, 2026 · Always verify against the current Health Canada Cosmetic Ingredient Hotlist before use.
Health Canada Hotlist — Restricted
Max concentration: 5%
Maximum 5% in talc-based products. Maximum 0.1% in oral hygiene products (mouthwash, dental care). Prohibited in products for children under 3. Carries developmental toxicity warnings.
Product type restriction: Both types
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