1. It's 100% natural, GMO free, and not irradiated.
2. The raw material is 100% natural
3. Resveratrol is odorless, free from contamination & admixture.
4. The extract solvent is only water and ethanol; which ensure the safety of the product.
5. Resveratrol content of detection is to 100% trans-resveratrol, the product isn't included maleinoid form resveratrol;
6. Emodin is less than 3% in mass production of 50% Resveratrol, it's lower than Industry Standard via SGS and other international organizations tested
7. We have huge stock for every specification, and we can supply the best price in china based on the excellent quality.