China Clay

Bueno

Absorbente

No known benefits

China Clay at a glance

  • Naturally occurring clay mineral famously used in cosmetics for its absorbent properties
  • Particularly popular in facial masks targeted at reducing skin’s surface oil
  • Also functions as an anticaking agent, bulking agent, and opacifying agent
  • Best known as kaolin

China Clay description

Best known as kaolin, China clay is a naturally occurring clay mineral famously used in cosmetics for its absorbent properties. It is particularly popular in facial masks targeted at reducing skin’s surface oil. While its absorbent properties are helpful for those with oily skin, it can be drying for other skin types (especially if used in very high amounts). To avoid this issue, some formulators pair China clay with hydrating/soothing ingredients which work to offset some of its absorbency so skin benefits without feeling dry or tight. China clay’s other reported cosmetic functions include as an anticaking agent, bulking agent, and opacifying agent. Depending on how it’s supplied and what it’s formulated with, China clay can also function as an abrasive agent. As a raw material, China clay is a soft, white clay comprised predominantly of kaolinite, a hydrated aluminum silicate. According to the Personal Care Council, “Kaolin is extracted from kaolinized granite by washing it out with powerful and remote water hoses. The clay stream is then pumped to the separation plant where sand and mica are removed. The purified clay is filtered when wet and then dried. The very fine powder is formed by milling.” Purified China clay (kaolin) has a long history of safe use in cosmetics. Further supporting its safety, kaolin has been generally recognized as safe (also known as GRAS status) by the US FDA as a direct food additive.

China Clay references

  • Molecules, August 2016, pages 1–20
  • The Journal of Clinical and Aesthetic Dermatology, December 2013, pages 19–27
  • Complementary Medicine Research, April 2012, pages 75–79
  • International Geology Review, July 2010, pages 745–770
  • International Journal of Toxicology, 2003, pages 37–102

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.

Calificaciones de ingredientes

Excelente

Ingrediente sobresaliente con beneficios reales para la piel. Su eficacia está demostrada y respaldada por estudios independientes.

Bueno

Aunque no son tan beneficiosos como los de la categoría excelente, suelen ser necesarios para mejorar la textura, la estabilidad o la absorción de una fórmula.

Aceptable

Puede presentar ciertas limitaciones en cuanto a su apariencia, estabilidad o eficacia. A veces, son ingredientes básicos o que no cuentan con suficiente respaldo científico.

Poco recomendable

Aunque puede ofrecer algunos beneficios se recomienda evitarlo por su probabilidad de causar irritación, especialmente si se combina con otros ingredientes problemáticos.

Desaconsejable

Ha demostrado provocar efectos adversos como irritación, inflamación o sequedad, especialmente si se utiliza en altas concentraciones o junto con otros ingredientes irritantes.

Desconocido

No hemos encontrado este ingrediente en nuestro diccionario. Registramos todos los ingredientes desconocidos y actualizamos la información de forma continua.

Sin calificar

Ingrediente registrado, pero con la información científica disponible pendiente de revisar.