Baby Safety / Compounds / Dimethicone (PDMS)

Is Dimethicone (PDMS) safe for babies and kids?

Moderate risk for kids

Infants are more vulnerable to Dimethicone (PDMS) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What is dimethicone (pdms)?

Also known as: Poly[oxy(dimethylsilylene)], DIMETHICONE, Conotrane, Cymex.

CAS number
9016-00-6
SMILES
C[Si](C)(-*)O-* |$;;;star_e;;star_e$,lp:4:2,Sg:n:1,4,0,2::ht|

Risk for babies

Moderate risk

Infants are more vulnerable to Dimethicone (PDMS) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.

What to do: Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Risk for pregnant and nursing people

Elevated risk

Pregnancy alters the metabolism and distribution of Dimethicone (PDMS), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

Suspected reproductive toxicant (GHS H361) or suspected endocrine disruptor. Precautionary approach warranted. Animal studies or limited human data suggest developmental toxicity potential.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

1 regulatory bodyhas classified Dimethicone (PDMS).

AgencyYearClassificationNotes
US FDA / EFSA (Dimethicone — polydimethylsiloxane; PDMS — FDA-approved OTC drug active ingredient (Category I skin protectant; anti-flatulence agent simethicone); FDA-approved pharmaceutical excipient (inactive ingredient database; oral, topical, ophthalmic routes); FDA food additive (21 CFR 173.340 — defoaming agent in food processing; 21 CFR 172.210 — coating for fresh fruits and vegetables; antifoaming agent in fermentation); EFSA E900 — ADI 'not specified' (1999 opinion reaffirmed); no carcinogenicity classification by IARC, NTP, US EPA, or EFSA for fully polymerized PDMS; cyclomethicone (cyclic siloxane) impurities — particularly D4 (octamethylcyclotetrasiloxane) and D5 (decamethylcyclopentasiloxane) — classified as SVHC by ECHA under EU REACH (endocrine disrupting, persistent) and restricted in wash-off cosmetics (EU restriction D4/D5 ≥0.1% in rinse-off products); distinction between high-molecular-weight linear PDMS (dimethicone — very low risk) and cyclic siloxane impurities (D4/D5 — significant environmental concern) is critical)2020no carcinogenicity classification for fully polymerized dimethicone PDMS; FDA Category I OTC skin protectant; EFSA E900 ADI not specified; cyclic siloxane impurities D4/D5 ECHA SVHC (endocrine disrupting, persistent) — EU restriction in wash-off cosmetics; distinction between polymer and cyclic impurities critical; not classified by IARC, NTP, or EPA for carcinogenicity

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where kids encounter dimethicone (pdms)

  • Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational Environments — Factories, Warehouses, Transportation vehicles
  • Consumer Products — dietary supplements, fortified foods, energy drinks

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Dimethicone (PDMS):

  • Bio-based polymer alternatives where available
    Trade-offs: Performance limitations. End-of-life complexity.
    Relative cost: 2-5× conventional

Frequently asked questions

Is dimethicone (pdms) safe for kids?

Infants are more vulnerable to Dimethicone (PDMS) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What products contain dimethicone (pdms)?

Dimethicone (PDMS) appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments); dietary supplements (Consumer products).

What should I do if my child is exposed to dimethicone (pdms)?

Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

See Dimethicone (PDMS) in the baby app

Look up products containing dimethicone (pdms), compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (1)
  1. FDA OTC Skin Protectant Category I Dimethicone 1-30%; FDA 21 CFR 173.340 Food Defoamer; EFSA E900 ADI Not Specified; ECHA SVHC D4 Reproductive Toxicant Cat 2 D5 vPvB; EU Regulation 2018/35 D4 D5 Restriction Wash-Off Cosmetics 0.1%; Simethicone Infant Colic; No IARC NTP EPA Carcinogenicity Classification PDMS Polymer (2020) — regulatory

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →