Polygonum cuspidatum (also known as Reynoutria japonica or Japanese knotweed) root has been used as an oriental medicine for more than 2000 years. From the perspective of traditional Chinese medicine theory, this plant was used to remove jaundice and clear heat-toxin, thereby promoting blood circulation, dispelling stasis, expelling wind and dampness, dissipating phlegm, and suppressing cough.
This plant has recently become popular with researchers and practitioners alike in the West due to its polyphenol content, especially resveratrol. Rich in Resveratrol, Japanese knotweed root extract leaves remarkable antioxidant, anti-inflammatory, and antimicrobial effects on the skin.
Recent scientific research showed that Polygonum cuspidatum speeds up wound healing, protecting skin fibroblasts, lessening inflammation, and stimulating collagen organization. In addition, it suppresses tyrosinase activity and decreases melanin production exhibiting skin whitening effects.
Polygonum Cuspidatum root extract is an ideal natural anti-aging ingredient for skincare formulas that fights toward hyperpigmentation and dark spots, enhances skin elasticity, and protects against oxidative stress and premature aging.