Isostearic Acid

1-2 year old toddlersSkin contact product

Check for Different Age (6 available)

Is this toddler-safe to use Isostearic Acid?

YES - Generally Safe
Danger Score: 1 (Lower is safer)
Quick Answer: Isostearic Acid is generally considered safe for 1-2 year old toddlers when used in topical products. Watch for toddler-specific sensitivities.

ℹ️General Overview

For toddlers (1-2 year olds), isostearic acid is usually safe in the small amounts found in lotions and creams. It helps products spread and soften skin and is considered low concern for cancer, allergies, and growth or development problems, but some studies and industry reviews note limited data and a couple of small signals worth watching.

What to Do

Use products with isostearic acid as directed and in normal amounts on healthy toddler skin. Don’t apply large amounts over wide areas every day. Avoid putting products with this ingredient together with strong active treatments (like prescription-strength medicines or potent exfoliants) on your toddler. If you are choosing a verified or certified product for your child, check the product label or manufacturer notes for any stated limits or special instructions.

⚠️Warnings

Watch for redness, rash, or irritation and stop use if the skin looks worse. Safety reviews note it can help other chemicals get through the skin (penetration enhancer) — avoid use on broken, very red, or inflamed skin and be cautious when other strong actives are present (source: Cosmetic Ingredient Review). A few studies found weak effects on hormones (source: National Toxicology Program), though overall concern is low. Some industry and government reviews note missing data and recommend limits on how it’s used in products (source: Cosmetic Ingredient Review; Environment Canada).

Confidence: MEDIUM

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Safety Risk Labels

This ingredient has the following documented risks:

Absorbed: A published study on fatty acid isomers found this ingredient can act as a skin penetration enhancer. That means it can help itself and other ingredients get through skin and into the body (study on fatty acid isomers, 1989).
Hormones: A government toxicology review reports one or more studies showing weak endocrine (hormone) effects. This means it may change how normal hormones work in the body (National Toxicology Program).
Environmental: A national environmental agency has flagged this chemical as suspected to be toxic to the environment, so it could harm wildlife or ecosystems if released (Environment Canada).

Tap or hover over labels to see detailed risk information.

Alternative Names for Isostearic Acid

This ingredient may also be listed as:

isostearic acidCAS-30399-84-9C20356MFCD00044082J-016709NCGC00164392-02NCGC00164392-01ISOSTEARIC ACID, >=97% (CAPILLARY GC)AS-57253W-109211NCGC00255115-01

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

Products Containing Isostearic Acid

This ingredient is found in the following products:

This list shows products that contain Isostearic Acid or its alternative names.

Common Questions About Isostearic Acid

Is this toddler-safe to use Isostearic Acid?

Yes, Isostearic Acid is generally considered safe for 1-2 year old toddlers based on current research.

What are the absorbed risks of Isostearic Acid for toddlers?

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

What are the hormones risks of Isostearic Acid for toddlers?

May mess with natural hormone development in babies and children. Young children may be more sensitive to these effects.

What are the environmental risks of Isostearic Acid for toddlers?

Possible negative effects on the environment Young children may be more sensitive to these effects.

What products contain Isostearic Acid?

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

When can toddlers using products with Isostearic Acid?

The appropriate age depends on the specific ingredient properties and concentration. This analysis is for 1-2 year old toddlers. Use the age selector above to check other ages.

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