Dimethicone

Excellent

Silicone

Dimethicone at a glance

  • Commonly used emollient, known for its gentleness and silky feel
  • Recognised as a skin protectant (in concentrations 1-30%) by the U.S. FDA
  • Popular in oil-free moisturisers, thanks to its hydration-enhancing, non-greasy finish
  • May also be used in sunscreen formulation to help the actives distribute evenly on skin
  • Considered synthetic, even though it’s derived from natural silicon

Dimethicone description

Dimethicone is a type of silicone (technically known as a non-volatile/linear silicone). It is one of the most frequently used emollient (softening) ingredients in moisturisers, well known for its gentleness and effectiveness. Dimethicone is recognised as a “skin protectant” by the U.S. FDA, when used in over-the-counter products in concentrations of 1-30%. It forms an air-permeable barrier that works to prevent moisture loss, so skin better retains hydration, while still allowing natural perspiration to evaporate. It imparts a wonderfully silky (but not greasy) feel, which makes it especially popular in oil-free moisturisers. Dimethicone may also be used with other ingredients such as alumina to coat zinc oxide or titanium dioxide in sunscreen formulation to help the actives distribute evenly on skin, providing uniform protection. Dimethicone is considered a synthetic ingredient, even though it’s derived from natural silicon. It has a long track record of being recognised as safe in cosmetic products.

Dimethicone references

  • Journal of Biosciences and Medicines, March 2025, pages 284-292
  • Military Medicine, November/December 2024, Pages e2523–e2529
  • FDA Code of Federal Regulations, April 2020, ePublication
  • International Journal of Toxicology, May 2014, pages 65S-115S
  • The Journal of Clinical and Aesthetic Dermatology, May 2014, pages 36-44
  • Dermatologic Therapy, May 2012, pages 229-233
  • Clinics in Dermatology, May-June 2012, pages 345-348
  • International Journal of Cosmetic Science, January 2008, pages 19-33
  • Skin Research and Technology, May 2000, pages 77-80

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Évaluation des ingrédients

Excellent

Ingrédient dont l’efficacité est prouvée et basée sur des études cliniques indépendantes. Un actif exceptionnel pour la plupart des types de peau ou problématiques cutanées.

Bon

Ingrédient nécessaire pour améliorer la texture, la stabilité ou la pénétration de la formule.

Moyen

Généralement non irritant, mais peut présenter des problèmes esthétiques, de stabilité ou autres qui limitent son utilité.

Mauvais

Un risque d'irritation est possible. Ce risque augmente lorsqu'il est associé à d'autres ingrédients problématiques.

Très mauvais

Peut provoquer irritations, inflammations, sécheresse, etc. Peut présenter un certain intérêt, mais s'avère globalement plus nocif que bénéfique.

Inconnu

Nous n’avons pas trouvé cet ingrédient dans notre base de données. Nous enregistrons les ingrédients manquants et mettons régulièrement notre base à jour.

Non évalué

Nous n'avons pas encore évalué cet ingrédient car nous n'avons pas eu l'occasion d'examiner les recherches le concernant.