Characteristics
- INCI
- Polygonum Aviculare Extract
- Ru.
- Knotgrass Extract, Elix-IR
- CAS
-
84604-04-6
This is the substance number in the Chemical Abstracts Service registry. The CAS number uniquely identifies a substance regardless of language, trade name, or synonyms.
- EC
-
283-280-9
This is the substance number in the European chemical identification system (EC number), used in European regulatory databases including ECHA/CosIng.
- Functions
- emollient
Description
A flavonoid-rich plant extract coming from knotgrass that is claimed to protect the skin from both UV and Infrared damage. By now it's pretty well-known that UV-light is the number one external skin-aging factor, however, *sigh* it looks like UV is not the only kind of light that causes bad things to happen to the skin.
Infrared light (760 nm to 1 mm) is the spectral band above visible light and there is some research concluding that it can accelerate skin aging via multiple mechanisms, one of them being the stimulation of the production of evil collagen-destroying enzymes called matrix metalloproteinases (MMP).
Therefore, protecting the skin from infrared light is probably a meaningful thing to do even though there are currently no proven ways to do so. As for Knotgrass Extract, we only have the manufacturer's claim that says it can inhibit Cathepsin G, an enzyme involved in photoaging and thus modulating the origin of sun and infrared induced MMP production.
The manufacturer also did in-vivo tests to show that a 2% Elix-IR lotion, used twice a day for 28 days can increase skin firmness (by 11.9%) and elasticity (by 4.8%) and visibly reduce the appearance of wrinkles (by 20%) and smoothes the surface of the skin.
Evidence & Research on Polygonum Aviculare Extract
-
1
Cho, Soyun, et al. "Effects of infrared radiation and heat on human skin aging in vivo." Journal of Investigative Dermatology Symposium Proceedings. Vol. 14. No. 1. Elsevier, 2009.
Products with Polygonum Aviculare Extract (191 total)
Most often found in The History of Whoo products (11 items)