Solaray - Biotin Tangy Fruit Flavor 5000 mcg. - 60 Lozenges Solaray Sugar Free Biotin contains 5000 mcg of biotin. absorption. Biotin a water-soluble B vitamin acts as a coenzyme in the metabolism of protein fats and carbohydrates. Biotin is an essential B vitamin that plays a vital role as a coenzy