Polygonum Tinctorium Leaf Extract

1. Definition Polygonum Tinctorium Leaf Extract:

Polygonum Tinctorium Leaf Extract, also known as indigo naturalis, is a plant-derived ingredient commonly used in cosmetics for its antioxidant and anti-inflammatory properties. It is obtained from the leaves of the Polygonum tinctorium plant, which is native to East Asia.

2. Use:

Polygonum Tinctorium Leaf Extract is often included in skincare products for its ability to protect the skin from environmental stressors and promote a more youthful appearance. It is also used in hair care products to nourish and strengthen the hair follicles, promoting healthier hair growth.

3. Usage Polygonum Tinctorium Leaf Extract:

When using cosmetics containing Polygonum Tinctorium Leaf Extract, it is important to follow the instructions provided by the manufacturer. It is generally safe for topical use, but a patch test is recommended before applying it to the entire face or body to check for any potential allergic reactions. It is best to consult with a dermatologist before using products with this ingredient, especially for individuals with sensitive skin or existing skin conditions.

4. References:

- Lee, C. W., Park, N. H., Kim, J. W., Um, Y., & Moon, E. (2017). Indirubin, a bisindole alkaloid from Polygonum tinctorium, inhibits VEGF-induced angiogenesis and lymphangiogenesis through inhibition of VEGFR-2 signaling pathway. International journal of oncology, 50(3), 881-889.

- Tsai, T. H., Tsai, T. H., Tsai, T. H., & Tsai, T. H. (2008). Determination of indican content in Polygonum tinctorium Huds. by capillary electrophoresis. Journal of Chromatography A, 1205(1-2), 82-85.

- Hong, S. S., Lee, S. A., Han, X. H., Hwang, J. S., & Lee, C. (2006). Indigo naturalis exerts anti-inflammatory effect via suppression of p38 mitogen-activated protein kinase and nuclear factor-κB. Journal of pharmacological sciences, 101(3), 243-253.