Lysine

Bueno

Humectante

Lysine at a glance

  • Amino acid that can enhance skin’s hydration
  • May help skin produce supportive substances that keep it looking smooth and youthful
  • Can be animal-derived or made synthetically in a lab
  • Has many derivatives with skin care benefits including tranexamic acid

Lysine description

Lysine is an amino acid that when applied topically may enhance skin’s hydration by aiding the balanced transport of water through skin’s layers. It also has potential to help skin produce supportive substances that keep it looking smooth and youthful. Lysine can be derived from animals or made synthetically in a lab. The most common manufacturing process for producing lysine is fermentation. Derivatives of lysine, such as tranexamic acid, lysine HCI, lysine carboxymethyl cysteinate, and arginine/lysine polypeptide, are commonly found in skin care serums, moisturizers, and lip treatments. These may offer stronger skin care benefits than lysine itself. The Cosmetic Ingredient Review (CIR) Expert Panel has approved the safe use of lysine in personal care products in concentrations up to 0.7%. Research has shown that amino acids work best for skin when they are combined. Rather than focusing on one particular amino acid, look for skin care formulas with a robust mix of amino acids.

Lysine references

  • Personal Care Products Council, Accessed August 2023, ePublication
  • International Journal of Toxicology, 2013, pages 41S-64S
  • Analytical and Bioanalytical Chemistry, February 2014, pages 380-384

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.