Magnesium Hydroxide

2-5 year old preschoolersSkin contact product

Check for Different Age (6 available)

Safe for preschoolers to use Magnesium Hydroxide?

YES - Generally Safe
Danger Score: 1 (Lower is safer)
Quick Answer: Magnesium Hydroxide is generally considered safe for 2-5 year old children when used in topical products. Consider preschooler activity levels.

ℹ️General Overview

For children aged 2-5 years (toddlers, preschoolers), magnesium hydroxide used on the skin is generally low risk when it’s part of a normal product made for skin. Most health reviews find little or no risk for cancer or long-term effects. Small risk: it can sometimes irritate eyes, nose, or skin if the product is strong or if the ingredient is in tiny “nano” form.

What to Do

Choose products made for children or gentle skin formulations. Do a small patch test on a little area of skin first. Use sparingly and avoid putting it on broken, red, or raw skin. Keep products away from the child’s mouth and eyes and supervise use. If your child has sensitive skin or you plan regular use (for example daily), check with your pediatrician.

⚠️Warnings

Watch for signs of irritation (redness, stinging, rash, swelling) or breathing issues. Stop use and rinse the area if those appear. Safety reviews and regulatory panels note limited evidence of eye, skin or respiratory irritation (European chemical safety reports and industry safety reviews). Some sources raise caution about nanoscale forms that might change how the material is absorbed through skin (nano-specific notes). Also, some product verification programs require extra safety data before the ingredient is allowed — choose products that are clearly intended for children and avoid DIY mixtures with “nanopowder” or very concentrated forms.

Confidence: HIGH

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Safety Risk Labels

This ingredient has the following documented risks:

Organ Risk: A European chemical regulator (ECHA) has classified magnesium hydroxide as toxic or harmful for non-reproductive organs in some assessments. That means, in certain situations or at higher exposures, it could hurt organs such as the liver, kidneys, or lungs.
Irritant: Reviews by a European chemical agency (ECHA) and a cosmetic safety panel (CIR) report limited evidence that magnesium hydroxide can irritate skin, eyes, or the respiratory tract, and animal studies show eye irritation at high doses. This can cause redness, stinging, tearing, or coughing in sensitive people.
Absorbed: Nano-focused sources note nanoparticle forms and warn that nano-scale materials may absorb through skin. Supplier notes also list nanopowder forms of magnesium hydroxide, so those forms could enter the body through the skin more easily than larger particles.
Asthma: The same ECHA and cosmetic industry assessments mention limited evidence of respiratory irritation. If inhaled or if it causes lung irritation, magnesium hydroxide could make breathing problems or asthma worse in some children.
Immune system: A European chemical review (ECHA) found limited evidence of skin toxicity or allergic reactions. That suggests some people could have immune or allergic skin responses, like rashes or contact sensitivity.

Tap or hover over labels to see detailed risk information.

Alternative Names for Magnesium Hydroxide

This ingredient may also be listed as:

magnesium hydroxideKX 8S(B)PHILLIPS MILK OF MAGNESIA LIQUIDKX 8S(A)S/G 84MAGNESIUM HYDROXIDE, NANOPOWDER, <100 NM PARTICLE SIZE (LASER PSA), 99.8% TRACE METALS BASISEINECS 215-170-3MILMAG (TN)MINT-O-MAG (TN)DSB 100DP 393

Always check ingredient labels carefully, as ingredients may be listed under different names.

Products Containing Magnesium Hydroxide

This ingredient is found in the following products:

This list shows products that contain Magnesium Hydroxide or its alternative names.

Research Articles on Magnesium Hydroxide

Scientific research related to this ingredient:

These research articles provide scientific evidence about Magnesium Hydroxide safety and effects.

Common Questions About Magnesium Hydroxide

Safe for preschoolers to use Magnesium Hydroxide?

Yes, Magnesium Hydroxide is generally considered safe for 2-5 year old children based on current research.

What are the organ risk risks of Magnesium Hydroxide for preschoolers?

May harm organs like liver, kidneys, or lungs with repeated use. Young children may be more sensitive to these effects.

What are the irritant risks of Magnesium Hydroxide for preschoolers?

Can cause skin redness, itchiness, or rashes—especially on sensitive baby skin. Young children may be more sensitive to these effects.

What are the absorbed risks of Magnesium Hydroxide for preschoolers?

Can be absorbed through the skin and get into the bloodstream. Young children may be more sensitive to these effects.

What are the asthma risks of Magnesium Hydroxide for preschoolers?

Can make breathing issues like asthma worse in babies and kids. Young children may be more sensitive to these effects.

What are the immune system risks of Magnesium Hydroxide for preschoolers?

Could weaken or confuse immune system. Young children may be more sensitive to these effects.

What products contain Magnesium Hydroxide?

Magnesium Hydroxide is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.

Is this suitable for preschoolers to using products with Magnesium Hydroxide?

The appropriate age depends on the specific ingredient properties and concentration. This analysis is for 2-5 year old children. Use the age selector above to check other ages.

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