Green tea, a natural plant recognized for its health benefits, continues to grow in the global tea market. Tea leaves are rich in catechins, which can account for 30% of the dry leaf weight. However, do you know what specific benefits green tea extract can provide to the human body? Green tea has long been considered to be good for health, and there are even studies showing that it can prolong life. Tea contains a lot of catechins, especially epicatechin gallate (ECG) and epigallocatechin gallate (EGCG), which are polyphenolic compounds that can counteract or prevent Oxidative stress in vivo caused by oxygen free radicals. The longevity benefit of green tea is thought to be due to the antioxidant effects of catechins, especially ECG and EGCG.
What are the benefits of green tea extract?
The main component of green tea polyphenols is EGC, which has been shown to have various health benefits. Its properties range from antioxidants to anti-inflammatory, with benefits such as cardiovascular health, cancer prevention, reduced risk of cognitive impairment, improved diabetes, losing weight with green tea extract, and more.
1. Cardiovascular and cerebrovascular diseases; studies have found that people who consume 3-5 cups of green tea a day can reduce the risk of cholesterol, heart disease and stroke.
2. Prevents cancer; In vitro experiments and animal studies indicate that certain ingredients in tea may help prevent cancers such as gastric, lung, esophageal, and colon cancers.
3. Uterine fibroids; One study found that daily administration of 800mg of green tea extract (45% EGCG) after meals can significantly reduce the diameter of uterine fibroids in women and improve symptoms such as anemia.
4. Diabetes; drinking 3 or more cups of black or green tea a day can reduce the risk of type 2 diabetes.
5. losing weight with green tea extract, because it includes caffeine may be effective for weight loss in the short term.
EGCG is one of the most important polyphenols in green tea extract catechins. Its unique chemical structure makes EGCG have anti-oxidation, lowering blood lipids and other effects, and also has cardioprotective effects. For example, EGCG powder can reduce inflammation caused by glucose and palmitic acid, participate in the metabolism of cholesterol in liver cells, and so on. These all indicate that EGCG can reduce the incidence of cardiovascular disease by reducing cardiovascular effects. EGCG can also effectively reduce osteoclastogenesis and stimulate osteoblast-related gene expression.
Green tea extract for skin: Synergy of EGCG with other ingredients in cosmetics
1. Vitamin A has anti-photoaging and anti-wrinkle properties and can be used in cosmetics. A derivative of vitamin A, all-trans retinoic acid (ATRA), has been shown to help EGCG inhibit the growth of B16 melanoma cells in mice. In addition, vitamin C reduced light-induced photochemical degradation of EGCG and also improved the preservation of its antioxidant properties. Studies have shown that vitamin C can increase the stability of EGCG molecules, especially in aqueous environments.
2. Titanium dioxide (TiO2), is a very common ingredient in many cosmetic products because it filters UV rays. If used in sunscreen, TiO2 occurs in nanoscale concentrations and forms a transparent sunscreen film when applied topically. Research analysis shows that nano-titanium dioxide can be coated by green tea extract, of which EGCG content is the highest, green tea extract reduces the photocatalytic activity of TiO2 and is often used in sunscreens.
3. Hyaluronic acid (HA) has strong moisturizing properties and is a very common cosmetic ingredient. An in vitro study examined the interaction between HA and EGCG, EGCG and HA transporters in the excised skin of male Wistar rats with better antioxidant effects and higher skin permeability and deposition.
Who is not suitable for drinking green tea extract?
1. The high amount of caffeine in green tea may cause some side effects and may also interfere with the action of the drug.
2. Green tea contains a small amount of fluoride. Drinking just a few cups of tea a day is good for your health, but habitually drinking large amounts of tea can cause health problems.
3. Cancer patients need to take proteasome inhibitors such as bortezomib (BOM) for treatment. EGCG and other green tea polyphenols may weaken the effects of these drugs and reduce their therapeutic effect. Therefore, green tea should not be consumed while taking BZM, MG-262, PS-IX.
4. Women who are trying to conceive or in the first trimester should avoid drinking large amounts of green tea. The catechins in tea can inhibit the conversion of folic acid, which is very important for the normal development of the fetal spinal cord.
5. It is recommended that people who are prone to kidney stones avoid drinking tea, because tea contains oxalic acid, which can combine with calcium to form calcium oxalate kidney stones.
How to buy better Green tea extract EGCG?
EGCG levels vary widely in green tea supplements, bottled tea, brewed tea, and matcha tea bags, and our recommended intake is 22-326 mg/day. Bottled tea (4-47mg/serving), brewed tea (25-86mg/serving), matcha tea bag (17-20mg/bag) or matcha powder (82-109mg/tsp). In general, supplements can provide the highest levels of potent catechins.
EGCG powder is a substance rich in polyphenols in green tea extract powder bulk and has good safety, anti-oxidation, anti-cancer and other biological activities. Therefore, it has broad application prospects in the field of functional foods. KS Bio exports green tea extract all year round and has long-term inventory in the United States, quality assurance, and competitive prices. pls feel free to contact us!
