Ashwagandha is having a moment. It's in gummies, powders, coffees, and half the wellness content on your feed, usually with claims that run from cautious to outrageous. Somewhere between ancient miracle root and expensive placebo sits the actual evidence.
So we did something unusual for a tea brand: we read the studies. Not summaries of summaries. The published, peer-reviewed clinical trials themselves. Here's what they say in plain language, with links so you can check every word yourself.
First, what ashwagandha actually is
Ashwagandha (Withania somnifera) is a small shrub whose root has been used in Ayurvedic practice for well over two thousand years. Its traditional reputation is as a rasayana, loosely a tonic for vitality and resilience. Modern wellness vocabulary classes it as an adaptogen: a substance thought to help the body stay balanced under stress rather than push it in one direction.
Traditional use is one kind of evidence. Over the last fifteen years, though, ashwagandha has also become one of the most clinically studied herbs in the world. That's rare, and worth taking seriously.
The three studies worth knowing
1. The landmark trial: Chandrasekhar et al., 2012
Published in the Indian Journal of Psychological Medicine, this is the study nearly every serious conversation about ashwagandha comes back to. Sixty-four chronically stressed adults took part in a 60-day randomized, double-blind, placebo-controlled trial (the gold-standard design), taking 300 mg of concentrated root extract, KSM-66, twice daily.
The result: participants on the extract scored significantly lower on standard stress assessments than the placebo group, and showed a measurable drop in serum cortisol, the hormone most associated with the body's stress response. This trial is where the widely quoted cortisol findings you see across the industry come from.
Read it: pmc.ncbi.nlm.nih.gov/articles/PMC3573577
2. The dose-response trial: Salve et al., 2019
Published in Cureus. An 8-week randomized controlled trial following 60 stressed adults in three groups: 125 mg of root extract daily, 300 mg daily, and placebo. Stress was measured on the Perceived Stress Scale along with serum cortisol. Both extract doses were associated with meaningful reductions versus placebo. That matters because it suggests the effect isn't an artifact of one dose in one trial.
Read it: pubmed.ncbi.nlm.nih.gov/32021735
3. The hormonal-detail trial: Lopresti et al., 2019
Published in Medicine (Baltimore). Another 60-day randomized controlled trial of 60 adults, this one using a different standardized extract at 240 mg daily. It too reported a statistically significant reduction in morning cortisol versus placebo. A different extract, a different research team, the same direction of findings. In research, replication across independent teams counts for more than any single result.
Read it: pubmed.ncbi.nlm.nih.gov/31517876
What adaptogen really means
An adaptogen is neither a sedative nor a stimulant. The working theory, supported by trials like the three above, is that adaptogens help regulate the body's stress-response system so that stress produces a less exaggerated physiological reaction over time. Less spike. More steadiness. It's a quieter claim than the internet usually makes, and a more believable one.
What the studies used
Worth knowing as you read: these trials used concentrated root extracts at measured daily doses, 240 to 600 mg, taken over roughly two months. That is the format researchers prefer because it is precise and easy to control.
Ashwagandha in a cup
Ashwagandha earned its place in UNWIND for two reasons. The first is its traditional role: of all the botanicals in the Ayurvedic record, this is the one most associated with steadiness at the end of a demanding day. The second is the research record you just read. When we chose eleven herbs for an evening blend, we wanted every one to justify itself, and ashwagandha justifies itself twice over.
In the cup it sits alongside chamomile, valerian root, lavender and blue pea flower, each with its own record of evening use. An ashwagandha tea works differently from a capsule: gentler, warmer, built around the act of slowing down. One warm cup, brewed at the end of the day, as a signal to yourself that the day is done.
Questions people ask
Is the research on ashwagandha real? — Yes. All three trials above are peer-reviewed and placebo-controlled, and you can verify them on PubMed through the links in this article.
Why is ashwagandha in an evening tea? — Because it carries both a centuries-old traditional record of evening use and one of the strongest modern research records of any calming botanical. In UNWIND it is one of eleven herbs chosen on that same standard.
Is ashwagandha safe? — It has a long record of traditional use. If you're pregnant, nursing, or under medical supervision, consult your healthcare professional before use. The same advice is printed on every Haus Paus box.
References
This article is for educational purposes only and is not medical advice. Haus Paus products are not intended to diagnose, treat, cure or prevent any disease.