What Does Ashwagandha Do? Benefits & How It Works

If you've been asking "what does Ashwagandha do," you're far from alone — and the answer turns out to be remarkably wide-ranging. Ashwagandha (Withania somnifera) is one of the most important herbs in Ayurvedic medicine, used for over 3,000 years as a Rasayana — a rejuvenating tonic intended to promote a youthful state of physical and mental health. Its Sanskrit name translates to "smell of a horse," signifying both its distinctive aroma and its reputed ability to impart the vigor and strength of a horse.

This particular formula goes beyond Ashwagandha alone. It's a unique adaptogenic blend that pairs standardized Ashwagandha root extract with Bacopa leaf extract, Rhodiola root extract, Schisandra fruit, and Black pepper fruit extract. Adaptogens are botanicals that may help improve your body's natural ability to adapt to environmental stressors, and each ingredient in this formula brings a distinct body of traditional use and scientific research to the table.

The formula is designed to support three interconnected areas: your stress response and HPA axis, your mental well-being and cognitive performance, and your physical performance and endurance. It also provides immune system and nervous system support. And because it's vegan-friendly, it fits a wide range of dietary preferences.

If you're curious whether this blend is right for your goals, our naturopath is available for a free consultation to help you think through it.

To truly understand what does Ashwagandha do, it helps to look at its mechanisms. The bioactive compounds in Ashwagandha — a group of steroidal lactones called withanolides — modulate the hypothalamic-pituitary-adrenal (HPA) axis, the body's central stress-regulation system. Research suggests they act both directly by interacting with glucocorticoid receptors and indirectly through modulation of gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter in the brain.

Multiple randomized controlled trials and meta-analyses have examined Ashwagandha for stress and anxiety. A 2025 meta-analysis of 15 RCTs (873 patients) found that Ashwagandha supplementation significantly reduced anxiety on the Hamilton Anxiety Rating Scale, lowered cortisol levels, and improved Perceived Stress Scale scores compared to placebo. An earlier meta-analysis of 9 RCTs (558 patients) corroborated these cortisol-lowering and stress-reducing findings.

Research also suggests Ashwagandha may favorably modulate serotonin, brain-derived neurotrophic factor (BDNF), and proinflammatory cytokines including IL-6 and TNF-α. On the physical performance side, studies show Ashwagandha extracts may increase VO2 max — a measure of cardiovascular fitness — by 6–14% over study periods of 4–12 weeks, and may support muscle mass, strength, and recovery.

Each of the companion adaptogens in this formula adds complementary mechanisms: Bacopa modulates acetylcholine and serotonin pathways for cognitive support, Rhodiola influences monoamine neurotransmitters and the HPA axis for stress resilience, and Schisandra lignans offer hepatoprotective and anti-fatigue properties. Black pepper's piperine enhances the bioavailability of co-administered compounds.

This formula is designed for adults looking to support multiple aspects of well-being simultaneously — particularly those dealing with everyday stress, mental fatigue, or the desire to optimize physical performance.

People managing chronic or everyday stress may benefit from the HPA axis–modulating properties of Ashwagandha and Rhodiola. Research suggests these adaptogens may help stabilize the long-term stress response, lower cortisol, and improve resistance toward stress and anxiety.

Active adults and fitness enthusiasts may appreciate the physical performance angle. VO2 max — a measure of aerobic endurance reflecting the functional health of the combined cardiovascular, pulmonary, and skeletal muscle systems — has been shown to increase in multiple Ashwagandha studies. Schisandra has also demonstrated muscle strength benefits in controlled trials.

Aging adults concerned about cognitive sharpness may find value in the combination of Ashwagandha and Bacopa. Ashwagandha has shown support for cognitive performance in aging populations, while Bacopa has the strongest traditional and scientific backing for memory free recall, attention, and processing speed — particularly after 12 weeks of consistent use.

Anyone seeking nervous system and immune system support rounds out the audience for this adaptogenic blend. If you're unsure whether this formula aligns with your health goals, our naturopath offers free consultations to help you think through your options.

Take 2 VegCaps daily. Each bottle contains 60 VegCaps, providing a 30-day supply at the recommended serving size.

It's worth noting that research on several of the ingredients in this formula — particularly Bacopa — suggests that cognitive effects are typically observed after 12 weeks of consistent supplementation. Most Ashwagandha clinical trials lasted 2–3 months as well. Consistency matters with adaptogens.

While Ashwagandha is considered generally safe in clinical trials, there are populations and circumstances that warrant caution. Ashwagandha should be avoided during pregnancy and should not be used while breastfeeding. It is not recommended for people who are about to have surgery, or for those who have autoimmune or thyroid disorders. Because Ashwagandha may increase testosterone levels, people with hormone-sensitive prostate cancer should avoid its use.

There is evidence that Ashwagandha might interact with some medications, including those for diabetes, high blood pressure, immunosuppressants, sedatives, anticonvulsants, and thyroid hormone medications. Rhodiola, Schisandra, and Black pepper also have documented cytochrome P450 enzyme interactions that could affect the metabolism of co-administered drugs.

Particular attention should be given to Rhodiola's potential interactions with serotonergic agents such as SSRIs, given the risk of serotonin syndrome documented in case reports. Schisandra may interact with drugs metabolized via CYP-450 3A and P-glycoprotein substrates such as tacrolimus and cyclosporine.

Although rare, cases of liver injury have been linked to Ashwagandha supplements. The NIH classifies Ashwagandha as a liver toxicity grade B. If you are taking any medications or have underlying health conditions, we strongly recommend discussing this supplement with your healthcare provider — or you're welcome to speak with our naturopath for a free consultation.