Magnesium Gluconate
INCI: MAGNESIUM GLUCONATE
Reviewed by Daisy · Last updated 14 Aug 2026
A mineral salt that conditions skin and supports its natural protective function
Best For Skin Types
All, Dry, Sensitive, Mature
Addresses
Usage Frequency
Daily
What Is Magnesium Gluconate?
Magnesium gluconate is a salt formed from magnesium and gluconic acid (a mild organic acid derived from glucose). It functions as a skin conditioning agent in cosmetic formulations, helping to maintain skin hydration and support the skin's barrier function.
Magnesium itself is an essential mineral involved in numerous physiological processes. In skincare, magnesium gluconate is used in relatively low concentrations to help optimise skin texture and comfort.
How It Works
Magnesium gluconate works primarily through hydrating and conditioning the outer layers of skin. The magnesium component has mild ionic properties that can help stabilise the skin's natural pH and support enzymatic processes within skin cells.
The gluconate component itself may provide gentle humectant properties, helping skin retain moisture. Together, these properties support overall skin comfort and resilience.
Clinical Evidence & References
Direct clinical evidence specific to magnesium gluconate in topical skincare is limited. However, magnesium is well-established as important for skin health at a systemic level, and mineral salts are widely used as conditioning agents in cosmetic formulations with a good safety history.
Most evidence for magnesium's skin benefits comes from oral supplementation studies rather than topical application. Further targeted research on topical magnesium gluconate would help clarify its specific benefits in skincare products.
How to Use
Magnesium gluconate is typically found in moisturisers, serums, and targeted treatment products. There are no special usage considerations; use as directed on product packaging. It works well alongside other hydrating and conditioning ingredients, and is suitable for layering with other actives.
Safety & Precautions
Frequently Asked Questions
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