White powder, no visible impurities by naked eyes
+7.5 - +8.5
98.0 - 102
Melting Point (°C)
Loss on Drying (%)
Residue on ignition (%)
Heavy Metals (ppm)
L-theanine may help relieve stress by inducing a relaxing effect without drowsiness and may also possess immunologic attributes. Theanine may also have effects on the cardiovascular system and play a preventative role in cancer; however, limited clinical information is available to support these claims.
Green tea extract contains high levels of polyphenols, which mainly consist of four catechin derivatives: epicatechin, epigallocatechin, epicatequinagalato, and epigallocatechin-3-gallate (EGCG). This potent mixture of polyphenol derivatives makes green tea one of the most health advantageous teas in the market. In skincare and cosmetics, green tea extract has shown good skin barrier function and retention, which can enable it to serve as a viable skincare ingredient for providing antioxidant protection and moisturizing properties.
Due to its high concentration of polyphenols, topical application of green tea extract can equip the skin with strong antioxidant properties that help to neutralize free-radicals present in the environment. In addition, topical green tea extract has also been found to boost overall skin hydration by improving moisture-retention at the skin’s surface. This moisturizing benefit may also help to improve skin roughness, leaving skin to feel soft and smooth.
Evidence from clinical trials suggests that green tea plays a role in metabolic syndrome because it may have an impact on body weight, glucose homeostasis, and other cardiovascular risk factors. It has yet to be determined whether green tea is an agent in cancer prevention; however, a role in the prevention of stroke has been suggested. Topical applications have been studied for protection from ultraviolet (UV) damage, and a commercial preparation has been approved for use in the treatment of anogenital warts.
1. Stress: Theanine may help reduce the negative effects of stress.
2. Immunity: Taking green-tea-derived theanine and antioxidants in supplement form may help prevent theflu.
3. A combination of theanine and caffeine may help improve cognitive performance.