Farnesol

5+ year old childrenSkin contact product

Check for Different Age (6 available)

Is this kid-friendly to use Farnesol?

YES - Generally Safe
Danger Score: 3 (Lower is safer)
Quick Answer: Farnesol is generally considered safe for 5+ year old children when used in topical products. Kids may have different tolerance levels.

ℹ️General Overview

Farnesol is a scent ingredient. For kids age 5 and up it is usually low risk, but it can cause allergic skin reactions in some children, especially those with sensitive skin or eczema.

What to Do

Before regular use, do a small patch test: put a tiny amount on the inside of the forearm and wait 24 hours. Avoid using products with farnesol on broken skin, near the eyes, or on irritated areas. If your child has eczema or a history of skin allergies, prefer fragrance-free products. Stop use and wash the area if you see redness, bumps, swelling, or itchiness.

⚠️Warnings

Farnesol is listed as a known human allergen by industry and regulatory sources (for example the EU Cosmetics Directive and the International Fragrance Association) and has labeling or use restrictions in some regions. Limited evidence of skin reactions has also been noted by the European Chemicals Agency. If your child develops a strong reaction (spreading rash, swelling, difficulty breathing), seek medical help right away.

Confidence: HIGH

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Safety Risk Labels

This ingredient has the following documented risks:

Immune system: This ingredient is listed as a known human allergen under the EU cosmetics rules and is flagged as a possible immune-system toxicant by EU authorities. An industry fragrance group also reports strong evidence that it can cause allergic reactions in people. Because it is applied to the skin, it can trigger immune responses in sensitive children.
Irritant: There is documented evidence of dermal toxicity and allergic skin reactions from chemical safety reviews and fragrance industry guidance. That means this topical ingredient can cause skin redness, itching, or rashes—especially on sensitive or young skin.
Eczema: Because regulators and industry reviewers identify this substance as a skin allergen with some dermal toxicity, it can trigger or make eczema and similar skin conditions worse in susceptible children.

Tap or hover over labels to see detailed risk information.

Alternative Names for Farnesol

This ingredient may also be listed as:

farnesolCAS-4602-84-0FARNESOL, MIXTURE OF ISOMERS, ANALYTICAL STANDARDAS-16107S409(2-TRANS,6-TRANS)-3,7,11-TRIMETHYLDODECA-2,6,10-TRIEN-1-OLNCGC00255293-0106F285TRANS,TRANS-FARNESOL, ANALYTICAL STANDARDC01126CS-0031456

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

Products Containing Farnesol

This ingredient is found in the following products:

This list shows products that contain Farnesol or its alternative names.

Common Questions About Farnesol

Is this kid-friendly to use Farnesol?

Yes, Farnesol is generally considered safe for 5+ year old children based on current research.

What are the immune system risks of Farnesol for children?

Could weaken or confuse immune system.

What are the irritant risks of Farnesol for children?

Can cause skin redness, itchiness, or rashes—especially on sensitive baby skin.

What are the eczema risks of Farnesol for children?

Linked to triggering or worsening eczema and similar skin conditions.

What products contain Farnesol?

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

When can kids start using products with Farnesol?

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

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