Follow us on our new Insta page »

Polygonum Aviculare Extract

goodie
Also-called-like-this: Knotgrass Extract, Elix-IR
What-it-does: antioxidant, emollient

Official CosIng Information

Details

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.

Show me some proof

  • 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

LILAH B. Aglow™ Face Mist Kristina Holey + Marie Veronique Soothing B3 Serum Kristina Holey + Marie Veronique Intensive Repair Serum DRMTLGY Universal Tinted Moisturizer Spf 46 Live Clean Face Mineral Sunscreen Spf 45 SkinMedica Essential Defense Everyday Clear Broad Spectrum Spf 47 Your Best Face (YBF-Skincare) Nourish Eye Cream NIOD Survival 0 DRMTLGY Broad Spectrum Spf 45 SkinMedica Lumivive SkinMedica SKINMEDICA TOTAL DEFENSE AND REPAIR SPF 34 Go-To Zincredible Spf15 Tinted NIOD Survival 10 Biologique Recherche Sérum Matriciel Visage Go-To Zincredible Spf15 (Untinted) Barrier Restore Serum Kristina Holey + Marie Veronique Barrier Restore Serum Beauty Counter Touchup Skin Concealer Pen Jurlique UV Defence Lotion Spf50 NIOD Survival 20 NIOD Survival SPF 30 Estee Lauder Resilience Multi-Effect Tri-Peptide Face And Neck Creme SPF 15 MAKE Beauty Succulent Skin Gel Darphin Ideal Resource Restorative Bright Eye Cream Trufora Day Serum 85 Ava Isa Pure Untinted Ultra Matte Spf 45 Sunscreen Coola Organic Spf 30 Full Spectrum 360° Sun Silk Drops Beauty Pie Japanfusion™ Step M3 (Light) Urban Air Purifying Day Moisturizer ESPA Optimal Skin ProDefence SPF 15 Lierac Sunissime SPF 50 Watsons Sun Protection Aqua Gel SPF 50 Maelove The Sun Protector Dermaquest Sheer Zinc Tinted Nude Spf30 Dermaction plus by watsons Advanced Sun Solar Barrier Complete Face & Body Lotion Spf 50+ Pa++++ Supergoop! Forever Young Body Butter With Sea Buckthorn Spf 40 Pa+++ The History of Whoo HwanYu Cream The History of Whoo HwanYu Eye Cream The History of Whoo HwanYu Essence