Magnesium Hydroxide

Generally Safe MineralNatural

Magnesium Hydroxide is a naturally derived mineral used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 20 supplements in the GoodSupp database. Magnesium hydroxide is an inorganic compound used as a source of magnesium.

20 Products use this
Generally Safe Safety rating
Mineral Category
Yes Natural origin

Safety Verdict: Generally Safe

Can cause diarrhea in high doses.

What is Magnesium Hydroxide?

Magnesium hydroxide is an inorganic compound used as a source of magnesium.

Common Names Magnesium Hydroxide, Milk of Magnesia
Type Mineral
Origin Natural / Plant-derived
Safety Rating Generally Safe

Why is Magnesium Hydroxide used in supplements?

It is used to provide magnesium.

Role in supplements: Mineral compound — provides a specific mineral in a bioavailable form the body can absorb.

Should you be concerned about Magnesium Hydroxide?

Generally no. Magnesium Hydroxide is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

Can cause diarrhea in high doses.

Low risk. Generally safe for most people in supplement amounts.

Top-rated products containing Magnesium Hydroxide

These 20 highest-scoring supplements in our database use Magnesium Hydroxide.

Doctor's Best SAM-e, 200 mg, 60 Enteric Coated Tablets
Doctor's Best SAM-e, 200 mg, 60 Enteric Coated Tablets
Product 100 Brand N/A
Doctor's Best SAM-e, 400 mg
Doctor's Best SAM-e, 400 mg
Product 100 Brand N/A
Paula's Choice Hyaluronic Acid + Ceramide
Paula's Choice Hyaluronic Acid + Ceramide
Product 93 Brand N/A
Nature Made Super Strength Cranberry 450 mg Extract With Vitamin C
Nature Made Super Strength Cranberry 450 mg Extract With Vitamin C
Product 90 Brand N/A
Nature Made Super Strength Cranberry 450 mg With Vitamin C
Nature Made Super Strength Cranberry 450 mg With Vitamin C
Product 90 Brand N/A
Nature Made Super Strength Cranberry With Vitamin C
Nature Made Super Strength Cranberry With Vitamin C
Product 90 Brand N/A
Solaray D-Mannose with CranActin Powder, 2,000 mg, 8 oz (226 g)
Solaray D-Mannose with CranActin Powder, 2,000 mg, 8 oz (226 g)
Product 90 Brand N/A
Nature Made Cranberry 450 mg Extract with Vitamin C
Nature Made Cranberry 450 mg Extract with Vitamin C
Product 87 Brand N/A
Perfectil Perfectil Vitabiotics Multivitamin | Hair Growth and Thickening Formula | Supports Thicker, Healthy Hair | Vitamin D, E, Collagen, Biotin, and More
Perfectil Perfectil Vitabiotics Multivitamin | Hair Growth and Thickening Formula | Supports Thicker, Healthy Hair | Vitamin D, E, Collagen, Biotin, and More
Product 85 Brand N/A
NaturesPlus Herbal Actives, Ultra Cranberry™ 1500, 30 Tablets
NaturesPlus Herbal Actives, Ultra Cranberry™ 1500, 30 Tablets
Product 84 Brand N/A
Solaray CranActin® Liquid, 270 mg, 2 fl oz (59 ml)
Solaray CranActin® Liquid, 270 mg, 2 fl oz (59 ml)
Product 81 Brand N/A
21st Century Cranberry Extract, Standardized, 60 Vegetarian Capsules
21st Century Cranberry Extract, Standardized, 60 Vegetarian Capsules
Product 78 Brand N/A
21st Century Cranberry Extract, Standardized, 200 Vegetarian Capsules
21st Century Cranberry Extract, Standardized, 200 Vegetarian Capsules
Product 78 Brand N/A
Zhou Nutrition Cran-Defense™, 60 Veggie Capsules
Zhou Nutrition Cran-Defense™, 60 Veggie Capsules
Product 77 Brand N/A
Solaray CranActin® D-Mannose, 60 VegCaps
Solaray CranActin® D-Mannose, 60 VegCaps
Product 72 Brand N/A
Solaray CranActin® D-Mannose, 120 VegCaps
Solaray CranActin® D-Mannose, 120 VegCaps
Product 72 Brand N/A
Swanson Herbal Urinary Care, 60 Capsules
Swanson Herbal Urinary Care, 60 Capsules
Product 71 Brand N/A
Solaray CranActin®, Urinary Tract Health, 120 VegCaps
Solaray CranActin®, Urinary Tract Health, 120 VegCaps
Product 71 Brand N/A
Solaray CranActin®, Urinary Tract Health, 180 VegCaps
Solaray CranActin®, Urinary Tract Health, 180 VegCaps
Product 71 Brand N/A
GNC Preventive Nutrition Focus & Memory
GNC Preventive Nutrition Focus & Memory
Product 70 Brand N/A
Related Ingredients
Frequently Asked Questions
Is Magnesium Hydroxide safe in supplements?

Magnesium Hydroxide is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. Can cause diarrhea in high doses. In GoodSupp's database, 20 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Magnesium Hydroxide and why is it in my supplement?

Magnesium hydroxide is an inorganic compound used as a source of magnesium. It appears in 20 products in the GoodSupp database.

Is Magnesium Hydroxide natural or synthetic?

Magnesium Hydroxide is naturally derived, meaning it comes from natural sources such as plants, minerals, or animal products rather than being chemically synthesized. Natural-origin ingredients are preferred by many consumers, though it's important to note that 'natural' does not automatically mean 'safer' — safety depends on the specific substance, its purity, and the amount used. The safety rating assigned by GoodSupp is based on the ingredient's actual safety profile, not its origin.

Check Any Supplement's Ingredients

Scan a barcode with GoodSupp to instantly see safety ratings for every ingredient.

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.