Is Tulsi Tea Good for Cortisol?

Partly: if stress is contributing to high cortisol, tulsi tea may be a calming routine and compounds in tulsi may influence the stress response, but the tea itself is not proven to lower cortisol. Tulsi tea is an herbal drink made from tulsi, also known as holy basil.

Can tulsi tea help with high cortisol?

Tulsi tea is reasonable to enjoy as part of a relaxing routine, but it should not be treated as a remedy for high cortisol. The strongest relevant human evidence comes from a trial of a standardized tulsi extract, not brewed tea.

Cortisol is a hormone involved in the body’s response to stress, as well as in normal functions such as regulating metabolism. Its levels naturally change throughout the day, so a single high reading does not necessarily establish a medical problem.

For a broader look at the evidence behind the best drinks for high cortisol, compare claims carefully: a drink that feels soothing is not necessarily proven to change cortisol levels.

How might tulsi affect the stress response?

Tulsi is often described as an adaptogen, a term used for a substance that may help the body respond to stress. That description is not proof that tulsi tea can correct an abnormal cortisol level.

Researchers are interested in whether compounds in tulsi influence pathways involved in the stress response. The available trial found changes in stress measures and hair cortisol with an extract, but it did not establish exactly how those changes happened. It also cannot tell us whether an ordinary cup of tulsi tea would have the same effect.

A quiet tea break may feel relaxing for reasons unrelated to a direct effect of tulsi on cortisol. That can be useful as a daily habit, but feeling calmer is not a way to determine whether cortisol is high or whether a medical condition is present.

What does the research on tulsi and cortisol show?

In a 2022 randomized, double-blind, placebo-controlled trial, 100 adults experiencing stress received a standardized tulsi extract or a placebo for 8 weeks. On average, the extract group reported greater improvement in perceived stress, and its hair cortisol level was lower at the end of the study than the placebo group’s.

The placebo comparison makes the result more informative than a report without a comparison group. Hair cortisol is also an indicator of cortisol exposure over time, rather than a measurement taken at one moment. Still, this was one trial in adults who reported stress; it was not a trial of tulsi tea or a study establishing a treatment for medically diagnosed high cortisol.

A standardized extract is not interchangeable with a homemade infusion. The amounts and types of tulsi compounds in tea can vary with the leaves and preparation, so the extract results do not establish an effective amount of tea. More research on brewed tulsi tea is needed before recommending it specifically to lower cortisol.

How can you use tulsi tea?

If you enjoy tulsi tea, use it as a beverage rather than as a prescribed cortisol treatment. There is no established amount of tulsi tea proven to lower cortisol. For a packaged product, follow its preparation instructions and check the ingredient list if you want plain tulsi.

For a cold-infused version, use food-grade fresh tulsi:

Ingredients

2 sprigs fresh tulsi, about 5 g
1 liter water, about 4¼ cups

Steps

Rinse the tulsi under running water.
Place the tulsi in a clean pitcher and pour in the water.
Cover and refrigerate for 2–4 hours to infuse.
Remove the tulsi and keep the drink refrigerated. Drink it within 24 hours, discarding it sooner if it becomes cloudy, slimy or sour-smelling.

Use the infusion as part of your normal fluid intake, not as a detox treatment. The liver and kidneys do most of the body’s detoxification; the lungs and gut help eliminate waste, and sweat removes only trace amounts. Drinks support hydration rather than removing toxins on their own.

Who should be careful with tulsi tea?

If you are pregnant or breastfeeding, or are considering giving tulsi tea to a child, ask a healthcare professional first; safety information for regular use in these groups is limited. If you take diabetes medicines, blood thinners or corticosteroids, check with a clinician or pharmacist before using tulsi regularly, because interactions and effects in people taking these medicines are not well established.

Do not stop or change prescribed medication to use tulsi tea. If you have an abnormal cortisol result or symptoms such as easy bruising, widening purple stretch marks or unexplained muscle weakness, see a doctor for assessment rather than trying to manage the result with tea. A clinician can interpret results in context and decide whether further testing is appropriate.