Stress Support Herbal Supplement Promotes a Feeling of Calmness and Relaxation Supports a Healthy, Natural Response to Daily Stress Science-Backed Quality Since 1969 Vegan Gluten Free Non-GMO Swanson Full Spectrum Ashwagandha (Withania somnifera) is a powerful adaptogen packed with multiple wellness benefits. Our convenient capsules pack a powerful 450 mg of pure ashwagandha root and feature plant-based ingredients without unnecessary processing. Not only can ashwagandha extract promote a healthy response to stress, it may also help support immune function. No matter which benefits of ashwagandha you’re looking for, this herbal remedy has your back.