We can supply Tea Polyphenols 20%-98%

Physical properties: light-green powder or light yellow soluble in water or alcohol.

Stability: stable in PH4-8. Easy to oxidize in the conditions such as strong alkali, acid , light , high temperature and interim metals. Safety evaluation: non-toxicity

Storage: keep in shady, dry places with good ventilation condition and avoiding light.

Shelf time: two years