Does ashwagandha actually lower cortisol? Here's what the research shows

Ashwagandha does not lower your cortisol the way flipping a switch would, and no supplement works that way. What a body of randomized controlled trials shows is that ashwagandha supplementation is associated with reduced stress-related markers, including cortisol, compared to placebo, in adults with chronic stress.† That's a real, population-level research finding, not a personal guarantee, and it's an important distinction if you're trying to figure out whether "cortisol-balancing" marketing claims are overselling what the science actually says.

What the research says, without the marketing spin

According to NCCIH, the National Institutes of Health's center for complementary health research, some ashwagandha preparations may be effective for sleeplessness and stress, though evidence on its effects on anxiety specifically remains unclear. The NIH Office of Dietary Supplements health professional fact sheet notes that research suggests ashwagandha extracts may lower stress and cortisol levels, but also points out that at least one trial found ashwagandha did not reduce perceived stress compared to placebo, even though it did reduce fatigue, an example of why findings vary by study and outcome measured.

A 2024 systematic review and meta-analysis of 14 randomized controlled trials found that daily ashwagandha supplementation was associated with reduced serum cortisol levels compared with placebo in adults with chronic stress. Separately, a randomized, double-blind, placebo-controlled study of 130 healthy but stressed adults found that 90 days of ashwagandha root extract improved memory, focus, psychological well-being, and sleep quality relative to placebo.

Why "cortisol-balancing" is the wrong way to describe this

A meta-analysis finding an association across a population of trial participants is not the same as a guarantee for any one person, and it is not the same as a product directly controlling a biomarker on command.† The honest version: research suggests ashwagandha supplementation may support a healthy stress response over weeks to months of consistent use, which is a meaningfully different claim than "lowers your cortisol."†

Cortisol Complex includes 300 mg of organic ashwagandha root, the dose range studied in much of the available research, alongside chamomile, saffron, and a full B-vitamin complex.† Cortisol Complex, formulated with 300 mg organic ashwagandha and algae-sourced DHA, is designed to support a healthy stress response as part of a daily routine, not as a one-time fix.†

• Look for research-backed dosing (typically 300 to 600 mg of standardized root extract) rather than proprietary blends that don't disclose amounts
• Expect weeks, not days, before noticing a difference, consistent with how most trials were designed
• Be skeptical of any brand claiming a supplement directly "balances" or "lowers" a measurable biomarker

"Whenever someone wants to pick up a supplement, make sure it's being made by a reputable organization."

— Dr. Jummy Amuwo, Pharm.D., MPH, BCPS, Clinical Pharmacist and Board Certified Pharmacotherapy Specialist

Cortisol Complex is third-party tested in cGMP-certified laboratories and formulated to be vegan, non-GMO, and gluten-free.

For the full stress physiology picture, see what actually happens in your body when you're stressed, and for a deeper cut on ingredient-level research, see what the saffron research says about mood.

"I never wanted Pink Stork to be another brand overpromising what a bottle can do. Every product we make is backed by real research and covered in prayer, and I would rather tell you the honest version than the flashy one."

— Amy Suzanne Upchurch, Founder and CEO of Pink Stork

Frequently asked questions

Does ashwagandha lower cortisol?

Research, including a 2024 meta-analysis of 14 randomized controlled trials, has found ashwagandha supplementation associated with reduced serum cortisol levels compared with placebo, but this is a population-level research finding, not a guarantee for any individual.

How much ashwagandha does research typically use?

Most studies use 300 to 600 mg of standardized root extract daily, according to the NIH Office of Dietary Supplements.

How long does ashwagandha take to work?

Most clinical trials studied ashwagandha over 60 to 90 days, so effects are generally expected to build over weeks to months rather than immediately.

Does Cortisol Complex contain a research-backed dose of ashwagandha?

Yes. Cortisol Complex contains 300 mg of organic ashwagandha root, within the dose range studied in available clinical research.†

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition. Keep out of reach of children.