Caffeine

Aceptable

Antioxidante

Caffeine description

Caffeine is the chief stimulant in beverages such as coffee and tea. It’s often included in skin care products with claims that it will improve the look of cellulite or puffy eyes. Unfortunately, research into caffeine’s effects in this regard are mixed. Caffeine’s popularity in products related to cellulite is due to its distant relationship to aminophylline (an ingredient once thought to improve the look of cellulite), which is a modified form of theophylline, and caffeine contains theophylline. Applied to skin, caffeine may have soothing and antioxidant properties, especially when skin is exposed to UV light. It can penetrate skin and has a constricting effect, which can help improve the look of redness but also may be sensitising. When it comes to puffy eyes, there is no research indicating caffeine can have any benefit; in fact, research has shown caffeine has an inhibitory action on a key protein in skin that helps it look younger. Truly, it’s a mix of pros and cons for skin, though lower amounts (less than 1%) in skin care products probably don’t present much, if any, risk.

Caffeine references

  • Journal of Dermatology and Dermatologic Surgery, January-June 2020, pages 18-24
  • Skin Pharmacology and Physiology, 2012, pages 8-14
  • Drug Design, Development, and Therapy, October 2014, pages 19,923-1,928
  • Skin Pharmacology and Physiology, 2013, issue 1, pages 8-14
  • British Journal of Clinical Pharmacology, August 2009, pages 181-186
  • The Journal of Clinical and Aesthetic Dermatology, January 2009, pages 36-40
  • International Journal of Cosmetic Science, October 2006, pages 343-347
  • BMC Complementary and Alternative Medicine, March 2006, issue 9, page 17
  • Bioscience, Biotechnology, and Biochemistry, November 2005, issue 11, pages 2219-2223

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.