Cyclopentasiloxane

Cyclopentasiloxane molecular structurePubChem

5+ year old children • Skin contact product

Check for Different Age (6 available)

Is this kid-friendly to use Cyclopentasiloxane?

✅
YES - Generally Safe
Danger Score: 2 (Lower is safer)
Quick Answer: Cyclopentasiloxane is generally considered safe for 5+ year old children when used in topical products. Kids may have different tolerance levels.

ℹ️General Overview

For school-age children (5+ years), this ingredient is generally low risk when used occasionally on the skin. It helps products spread and feel smooth, and direct skin allergy or cancer concerns are low in the provided data.

✅What to Do

If you use products with cyclopentasiloxane on a child 5 or older: prefer rinse-off products (like shampoos) or leave-on products used only occasionally; avoid sprays or aerosols that can be breathed in; do not apply to broken skin; do a small patch test the first time to check for irritation; if you want to reduce any possible long-term buildup, choose products without this ingredient for daily use.

⚠️Warnings

The safety information provided flags three things to watch for: (1) contamination concerns (a related impurity was specifically noted), (2) persistence and bioaccumulation (the ingredient can build up in the environment and wildlife and may persist in the body), and (3) animal studies showing endocrine and nervous-system effects at moderate exposures (mainly via inhalation). Because of these notes, avoid sprays or heavy daily leave-on use, watch for new skin irritation, and avoid use near the child's mouth, nose, or eyes. These warnings come from the safety data provided for this ingredient.

Confidence: MEDIUM

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Safety Risk Labels

This ingredient has the following documented risks:

Hormones: Animal studies show this chemical can change hormone-related systems and affect reproduction in lab rats. Government and lab reports flagged endocrine effects after repeated exposures, so it may interfere with normal hormone development.
Brain Development: Lab studies found effects on nervous system targets (including dopamine receptors) at moderate doses in animals. That suggests a possible risk to early brain growth if infants or children are exposed.
Organ Risk: Government assessments note it can harm non-reproductive organs and animal studies link repeated exposure to organ effects. This shows it can be toxic to internal organs with ongoing exposure.
Cancer: A long-term animal inhalation study reported tumor findings in rats after repeated exposure. That animal evidence raises concern about a cancer link with repeated exposures.
Builds Up: European chemical regulators and government testing list this substance as persistent and bioaccumulative in wildlife and people. That means it can collect in the body over time.
Long-Term Risk: Because the chemical persists, builds up, and is linked to organ, hormone, and cancer findings in studies, it poses possible health effects after years of exposure.
Absorbed: Safety reviews note enhanced skin absorption for this ingredient when used on skin. That means it can get through the skin and into the body after topical use.
Environmental: Environment‑level reviews name this chemical as an environmental toxin and flag harm to wildlife. It is suspected to cause ecological damage when released into the environment.
Fertility: A two‑generation reproductive study in animals showed effects from repeated exposure, which raises concern about impacts on fertility and reproductive health.
Banned: European regulatory lists and some government guidance have put this substance on serious concern lists and recommend limits or controls in products and manufacturing, meaning it faces restrictions in some places.
Breast Milk: Because the chemical is persistent and bioaccumulative in people according to regulatory reviews, it can build up in the body and may reach breast milk and thus expose nursing infants.

Tap or hover over labels to see detailed risk information.

Alternative Names for Cyclopentasiloxane

This ingredient may also be listed as:

cyclopentasiloxane4-04-00-04128 (BEILSTEIN HANDBOOK REFERENCE)CHEMBL1885178DSSTOX_RID_78338DTXSID1027184D5 CYCLOMETHICONE, PHARMACEUTICAL SECONDARY STANDARD; CERTIFIED REFERENCE MATERIALSCHEMBL28497KSC493E2HCTK3J3223DSSTOX_GSID_27184ACMC-209LD1

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

Products Containing Cyclopentasiloxane

This ingredient is found in the following products:

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

Research Articles on Cyclopentasiloxane

Scientific research related to this ingredient:

Opinion of the Scientific Committee on Consumer Safety (SCCS) - Final version of the opinion on decamethylcyclopentasiloxane (cyclopentasiloxane, D5) in cosmetic products.

PMID: 27845160PubMed ↗

These research articles provide scientific evidence about Cyclopentasiloxane safety and effects.

Common Questions About Cyclopentasiloxane

Is this kid-friendly to use Cyclopentasiloxane?

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

What are the hormones risks of Cyclopentasiloxane for children?

May mess with natural hormone development in babies and children.

What are the brain development risks of Cyclopentasiloxane for children?

Possible effects on early brain growth and mental development.

What are the organ risk risks of Cyclopentasiloxane for children?

May harm organs like liver, kidneys, or lungs with repeated use.

What are the cancer risks of Cyclopentasiloxane for children?

Connected to cancer risk with long-term or repeated exposure.

What are the builds up risks of Cyclopentasiloxane for children?

Builds up in the body over time with repeated use.

What are the long-term risk risks of Cyclopentasiloxane for children?

Linked to long-term health effects after years of use or exposure.

What are the absorbed risks of Cyclopentasiloxane for children?

Can be absorbed through the skin and get into the bloodstream.

What are the environmental risks of Cyclopentasiloxane for children?

Possible negative effects on the environment

What are the fertility risks of Cyclopentasiloxane for children?

Some studies link this to future fertility or reproductive issues.

What are the banned risks of Cyclopentasiloxane for children?

Banned or heavily restricted in one or more countries.

What are the breast milk risks of Cyclopentasiloxane for children?

Detected in breast milk, meaning it can pass from mom to baby.

What products contain Cyclopentasiloxane?

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

When can kids start using products with Cyclopentasiloxane?

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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