What is Magnesium Sulfate?

Magnesium sulfate is a mineral compound, also known as Epsom salt, frequently used in bath products and topical applications.

What are the benefits of Magnesium Sulfate for skin?

It is often used to soothe tired muscles, reduce minor swelling, and provide gentle exfoliation when incorporated into skincare formulations or bath soaks.

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Magnesium Sulfate

Magnesium sulfate, commonly known as Epsom salt, is a mineral compound. In topical applications, it is often used for its soothing and exfoliating properties. It can help draw out impurities and reduce swelling, making it popular in bath soaks.

Mineral saltVegan

BenefitMinimal 1.2 / 4

Soothing i2 / 4

Whether it can calm the skin — linked to less redness, irritation, discomfort, or visible reactivity.

Texture i1 / 4

Whether it can improve smoothness and surface texture — roughness, flaking, clogged pores, or unevenness. Exfoliating acids, retinoids, and smoothing moisturizers may score here.

RiskLow 0.5 / 4

Barrier disruption i0.5 / 4

Whether it can weaken or damage the skin barrier — harsh surfactants, strong exfoliants, high alcohol content, or overuse-prone actives.

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

soothes skin
exfoliates skin
reduces swelling

Things to watch

can be drying if used excessively

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Products with Magnesium Sulfate

Madagascar Centella Air-Fit Suncream Plus SPF50+ PA++++

4.6/ 518/22/4

Lumene

CC Color Correcting Cream SPF20

4.4/ 512/25/5

The Ordinary

UV Filters SPF 45 Serum

4.3/ 511/9/5

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Frequently asked questions

What is Magnesium Sulfate?: Magnesium sulfate is a mineral compound, also known as Epsom salt, frequently used in bath products and topical applications.
What are the benefits of Magnesium Sulfate for skin?: It is often used to soothe tired muscles, reduce minor swelling, and provide gentle exfoliation when incorporated into skincare formulations or bath soaks.