Natural Factors Bee Propolis Tincture 65% Extract - As a powerful, concentrated source of Bioflavonoids, Trace Minerals and B Vitamins, Bee Propolis possesses antiviral, antibacterial, antiseptic and anti-fungal properties, thereby stimulating and protecting the immune system. Natural Factors Bee Propolis Tincture provides protection against colds and flus, and helps speed up healing of sore throats and a variety of skin irritations. Bee Propolis has also shown good results in reducing respiratory infections, bleeding gums and varicose veins. Quality tested, free of contaminants and easily assimilated. This convenient Propolis Tincture is a potent 65% extract of pure Bee Propolis.