Supports Prostate Health. Stinging Nettle has been used according to tradition, since the days of Caesar 2,000 years ago. NOW Stinging Nettle Root is produced to meet the highest European standards, where it has been researched and widely used. This product is Non-GMO, a Dietary Supplement, Vegetarian / Vegan, Kosher, a Botanical / Herb, and Family Owned Since 1968. It is GMP Quality Assured.