About this item Expertly extracted Bilberry Tincture Supplement! Bilberry Glycerite contains ONLY natural ingredients! Alcohol Free! Gluten Free! Non-GMO! High Quality Bilberry Tincture Supplement - we use classic conventional methods of extraction! We meticulously produce our extracts according to precise standards where each herb is extracted according to the distinct characteristic of each plant! Super concentrated Bilberry Glycerin based liquid extract: dry material / solvents ratio is 1:3! We strictly use Only Certified or ethically sourced wild harvested raw material, vegetable palm glycerin and crystal clear artesian purified water! Really the BEST Bilberry herbal glycerite on market!