New Design Quercetin From Onion Extract Powder, High Quality Red Onion Peel Extract

New Design Quercetin From Onion Extract Powder, High Quality Red Onion Peel Extract. High Purity Quercetin Extract: Yellow powder with HPLC detection method ensuring high quality. Versatile Food Sources: Derived from onion bulbs, Sophora japonica, and found in various fruits and vegetables. OEM and ODM Services: Accept customization from samples and designs with available OEM service. ISO Certified Quality: Manufactured under ISO certification standards with 100% finished product inspection. Fast Lead Time: Peak and off-peak season lead time within 15 workdays. Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments. Comprehensive COA: Certificate of Analysis available for all batches. Long Shelf Life: 24 months shelf life when stored in cool and dry places.