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Is magnesium oxide safe during pregnancy?

Reviewed by · Last reviewed

Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
magnesium oxide
NO KNOWN RISKS
100
/100
0

Pregnancy-safe products containing magnesium oxide

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Authoritative references used to score this ingredient.

Frequently asked questions

Is magnesium oxide safe during pregnancy?
No harmonised reproductive classification on ECHA Annex VI and no SCCS/CIR safety opinion indicating reproductive hazard; magnesium oxide is an inorganic, poorly soluble oxide with no documented human teratogenicity or endocrine activity in the reviewed sources (ECHA Annex VI; PubChem; CosIng).
Is magnesium oxide safe while breastfeeding?
No evidence of reproductive or lactation-specific toxicity in regulatory/peer-reviewed sources; topical dermal absorption is negligible for this insoluble oxide, so systemic exposure through topical use is not expected (PubChem; ECHA registration dossiers; CosIng).
Is magnesium oxide safe for baby skin?
Hazard and mechanism: no infant-specific reproductive/toxicity data identified and no harmonised flags. Exposure: adult topical absorption is negligible for insoluble MgO, but because infant skin has higher surface-area-to-weight and a less mature barrier, exposure rating increased by +1 (per instruction) to reflect potentially higher (but still low) exposure (PubChem; CosIng).
How does VeriMom score magnesium oxide?
VeriMom scores magnesium oxide at 100/100 (no known risks) based on EU CosIng status, ECHA hazard classifications, and peer-reviewed PubMed studies. Our scoring pipeline is fully transparent.
What are pregnancy-safe alternatives to magnesium oxide?
See our curated list of pregnancy-safe alternatives to magnesium oxide based on similar function and a no-known-risks safety band.

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Medical Disclaimer

This information is for educational purposes only and does not constitute medical advice. Safety scores are based on publicly available data and may not reflect all risks. Always consult your healthcare provider before using any product during pregnancy or breastfeeding.

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