BioSchwartz Advanced Formula Elderberry Syrup is made with a premium 10:1 sambucus black elderberry extract with Zinc and Vitamin C. Our elderberry syrup with zinc and vitamin c is a rich source of antioxidants and multiminerals that support healthy immune function - made with natural elderberries, there is actually nutrient-dense elderberry pulp in every bottle. Our Advanced Formula Elderberry Syrup has a refreshing and delicious taste loved by kids and adults - in fact it's so tasty that a lot of our customers actually use this as a syrup for breakfast foods like pancakes and waffles. Each and every batch of BioSchwartz advanced formula elderberry syrup is third party tested to ensure the highest levels of purity, potency, safety, and quality. Our elderberry syrup was created by a team of experienced healthcare professionals in the Usa following strict cGMP guidelines to ensure the greatest benefits are achieved.