Magnesium Oxide

Magnesium oxide is a mineral compound used in cosmetics for its absorbent and opacifying properties. It can help control excess oil on the skin and provide a matte finish. In oral care, it may be used as a mild abrasive or to adjust pH.

BenefitMinimal 0.8 / 4

Oil control i1.5 / 4

Whether it can reduce excess sebum, shine, or greasiness — absorbents, sebum-regulating ingredients, and some acne actives.

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

• absorbs excess oil
• provides opacity
• mild abrasive

Products with Magnesium Oxide

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Frequently asked questions

What does magnesium oxide do in skincare?

In skincare, magnesium oxide primarily functions as an absorbent, helping to soak up excess oil and reduce shine on the skin's surface. It can also contribute to the opacity of a product, making it appear less translucent.