Magnesium Hydroxide Powder USP


Magnesium Hydroxide is used as an additive in formulations and acts as an absorbent or as a pH adjuster. It is a fine, white and odourless powder.

Magnesium Hydroxide is soluble in oil and slightly soluble in water.


  • Has effective oil-absorbent properties binding the oil on the skin and from inside the pore lining
  • Widely used as filler and texturizer
  • Can be used to neutralize acids (pH < 7.0) but reacts only slowly. Cannot increase the pH further in products with a pH > 7.0.

Use: Typical use level is 0.2-1.5% when used as pH adjuster. When used as absorbent, filler or texturizer, it can be used at up to 30%. For external use only.

It is recommended for use in deodorants, bath products, shampoos, shaving products, skincare, and other general care items.

INCI:Magnesium hydroxide

Directions: Use at 1-30% during oil phase of formulation

Country Of Origin: United States

Shelf Life 1 Year

Animal Testing: Not animal tested

GMO: GMO-free (does not contain plant-derived components)

Vegan: Does not contain animal-derived components

Customer Reviews

Based on 4 reviews
Lisa Machula
Great product

This is exactly what I was expecting, super fine, water soluble, mixes well in new cream batches or right into ready made cream, perfect for skin absorption. Shipped quickly and packaged well.

Melony Burton

Magnesium Hydroxide Powder USP

michelle goulet
Very high quality

This mh is a game changer for my deodorants. Very smooth

Barbara Bell-Mossa

It’s great for making deodorant I really enjoy working with it and I like the end result