Magnesium Stearate
Magnesium stearate is a fine white powder commonly used in UK beauty products as a texture enhancer and binding agent. You’ll find it in pressed powders, eyeshadows, blushes and lipsticks where it helps create a smooth, silky feel and prevents ingredients from clumping. It is considered gentle and is widely used in both high-street and professional cosmetic formulas.
How it works in skincare
In cosmetics and skincare, magnesium stearate functions primarily as a lubricant, anti-caking agent and bulking agent. It improves the slip and glide of pressed and loose powders, helps pigments adhere evenly to the skin, and prevents the separation of oils and powders in formulations. Its hydrophobic nature also contributes to the water-repellent qualities of certain products, extending wear time without compromising the lightweight, non-greasy finish consumers expect from modern British beauty brands.
Key benefits
- Improves product texture and slip
- Helps create smooth, blendable application
- Prevents clumping in powders and pressed cosmetics
- Enhances adhesion of pigments to skin
- Contributes to long-wear properties of makeup
- Gives a silky, non-greasy finish
Best for
all skin types, oily skin, combination skin, sensitive skin
Where it comes from
Magnesium stearate is derived from stearic acid, a fatty acid that occurs naturally in vegetable oils such as palm oil and coconut oil, which is then reacted with magnesium. While it can also be sourced from animal fats, the cosmetic grade used in UK beauty products is almost always vegetable-derived.
Products with Magnesium Stearate
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Magnesium Stearate than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.
- Sunkissed Eternal Bronzer Sunkissed