The extract coming from ginger, the lovely spice that we all know from the kitchen. It is also a medicinal plant used both in Chinese and Ayurvedic medicine for pretty much everything you can imagine (muscular pain, sore throat, nausea, fever or cramps, just to give a few examples).
As for ginger and skincare, the root extract contains the biologically active component called gingerol that has potent antioxidant and anti-inflammatory properties. Combined with Bisabolol, the duo works synergistically to sooth the skin and take down redness.
Other than that, ginger also contains moisturizing polysaccharides, amino acids, and sugars, and it is also quite well known to increase blood circulation and have a toning effect.
Last but not least, Ginger also has some volatile, essential oil compounds (1-3%). Those are mostly present in ginger oil, but small amounts might be in the extract as well (around 0.5% based on manufacturer info).
Show me some proof
- Ali, Badreldin H., et al. "Some phytochemical, pharmacological and toxicological properties of ginger (Zingiber officinale Roscoe): a review of recent research." Food and chemical Toxicology 46.2 (2008): 409-420.
- Kim, Jin-Kyoung, et al. "-Gingerol prevents UVB-induced ROS production and COX-2 expression in vitro and in vivo." Free radical research 41.5 (2007): 603-614.
- Stoilova, I., et al. "Antioxidant activity of a ginger extract (Zingiber officinale)." Food chemistry 102.3 (2007): 764-770.
- Penna, S. C., et al. "Anti-inflammatory effect of the hydralcoholic extract of Zingiber officinale rhizomes on rat paw and skin edema." Phytomedicine 10.5 (2003): 381-385.