8 Best Supplements to Lower Cortisol Naturally in 2026

What is Cortisol?

Cortisol, often called the ‘stress hormone’, is produced by your adrenal glands and plays a vital role in your body’s response to stress.^[1] It helps regulate energy by releasing glucose, supports your immune system, and manages inflammation.

Dr. Jason Winkelmann, Naturopathic Doctor, says;

Cortisol isn’t the enemy; it’s the body’s survival hormone. Problems arise when stress becomes chronic and the cortisol spike stays elevated, leading to fatigue, weight gain, inflammation, and hormone imbalance. The goal isn’t to suppress cortisol, but to restore its healthy rhythm.

In short bursts, cortisol is essential for survival, enabling your body to handle immediate challenges. However, when cortisol levels remain elevated due to chronic stress, it may affect your health over time.

💡 Did You Know? Cortisol peaks 30 to 40 minutes after waking up and drops throughout the day.

How We Chose Supplements That Can Reduce Cortisol Naturally

• Ingredient Quality: We checked for ingredients with human studies on stress and cortisol.
• Transparent Label: We reviewed the Supplement Facts label for active ingredients, fillers, and allergens.
• Third-Party Testing: We prioritized products tested for purity, potency, and safety.
• Brand Reputation: We checked brand transparency, customer trust, and manufacturing standards.
• Customer Reviews: We analyzed verified reviews for real-world results and user experience.

Comparison Table

	Ashwagandha Extra Strength Formula	Anxiety Shield	Primegenix CortiSync	Gluta Raise	Mita Nutra ManGreens	Cortisol Manager	Relacore Extra	Leslabs Cortisol Health
Third-party tested	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Highlights	Organic Ashwagandha with black pepper for absorption, supports calmness, balance, and focus	Adaptogenic herbs, promotes relaxation, emotional balance, and mental clarity	May help support healthy cortisol levels with adaptogens, plus men's stress response, energy, and performance	Supports cortisol balance, stress response, cravings, and healthy weight management	Full-dose greens blend with Tongkat Ali and KSM-66 Ashwagandha, may help support normal energy, hormone levels, and immune function	Sensoril® Ashwagandha, L-Theanine, Magnolia, and Phosphatidylserine for restful sleep and cortisol balance	May help support mood, occasional stress, normal immune function, and energy	May help support normal adrenal function, balanced cortisol response, relaxation, and restful sleep
Customer Rating	4.9/5	4.6/5	4.0/5	4.7/5	3.8/5	4.5/5	4.2/5	4.3/5
Return Policy	60-day money-back guarantee	60-day money-back guarantee	67-day money-back guarantee	NA	60-day return policy	Amazon return policy	Amazon return policy	Amazon return policy
Shipping	Free U.S. shipping over $60	Free U.S. shipping over $60	Shipping varies by offer	Purchase price includes shipping costs	Shipping varies by offer	Amazon Standard Charges	Amazon Standard Charges	Amazon Standard Charges

What Causes High Cortisol & What It Does to Your Body?

“In healthy individuals, cortisol peaks in the morning to help you wake up and gradually tapers through the day. However, cortisol can stay elevated throughout the day due to chronic stress, sleep deprivation, or inflammation,” says Dr. Jason Winkelmann

This elevated cortisol may cause:

• Sleep disruption: High cortisol may keep your mind racing at night, making it harder to fall or stay asleep.
• Stubborn weight gain: High cortisol may be linked to fat gain around your midsection and cravings for sugar and comfort foods.
• Energy crashes: That wired-but-tired feeling that may leave you exhausted yet unable to relax.
• Mood changes: You may feel irritable, on edge, or overwhelmed by everyday stressors.
• Immune changes: Long-term high cortisol may affect normal immune function.
• Brain fog: You may notice memory and concentration slips that make focusing harder.
• Other hormone changes: May affect thyroid function, sex hormones, and blood sugar regulation.

If these symptoms are strong or don't go away, talk to your doctor.

The good news is that lifestyle changes and some supplements, such as adaptogens like ashwagandha, may help support healthy cortisol levels during occasional stress.

Incorporating cortisol-support supplements into your routine, alongside stress management techniques, may help support balance and overall well-being.

What to Look for in Cortisol-Reducing Supplements?

• Clinically studied ingredients: Choose supplements with standardized extracts and bioavailable forms that match those used in research studies.
• Effective dosages: The supplement should contain amounts close to those used in human studies, not trace amounts that look good on a label.
• Third-party testing: Look for independent verification confirming purity, potency, and the absence of contaminants such as heavy metals or toxins.
• Clear label information: Transparent labeling that lists exact ingredient amounts, no proprietary blends hiding what you're actually getting.
• Brand reputation: Opt for supplements made in the USA from FDA-registered facilities that follow Good Manufacturing Practices (GMP).
• Allergen-free options: If you have sensitivities, choose products free of common allergens such as gluten, soy, and dairy.
• Positive reviews: Real customer feedback indicating the supplement actually works, not just marketing hype.

Top Ingredients to Look For (With Scientific Evidence)

Top Ingredients in Cortisol Reducing Supplements

Ashwagandha

Ashwagandha may help lower cortisol levels and ease feelings of stress in adults under everyday stress.

A 2021 review of studies with 491 participants found that doses of 240-1,250 mg/day significantly lowered cortisol and stress^[2]. One study showed 225 mg/day reduced saliva cortisol^[2].

The studies were published in various clinical journals, and the systematic review was published in Frontiers in Pharmacology in 2021.

Phosphatidylserine

“Phosphatidylserine reduces cortisol spikes following intense exercise or mental stress, supporting recovery and cognitive clarity”, explains Dr. Jason Winkelmann.

A study published in 2008 in the Journal of the International Society of Sports Nutrition found that taking 600 mg of phosphatidylserine (PS) daily for 10 days reduced cortisol levels by 39% compared to a placebo ^[3].

Magnesium

A study in Magnesium in the Central Nervous System (published on NCBI Bookshelf) explores the link between magnesium and stress, specifically its impact on cortisol secretion.

Magnesium interacts with the hypothalamic-pituitary-adrenal (HPA) axis, which regulates cortisol. Research shows that magnesium deficiency can increase cortisol production and worsen stress responses.^[4]

By stabilizing corticotropin-releasing factor (CRF) receptors and modulating neurotransmitters, magnesium helps lower stress hormone levels^[4].

Rhodiola Rosea

Rhodiola rosea (R. rosea) is an adaptogen known to reduce stress. Clinical studies show it improves mental performance, physical endurance, and decreases perceived stress, with some trials reporting lower cortisol levels.

A 2022 study in Molecules found R. rosea reduced cortisol response after awakening in 60 patients with burnout^[5].

Another trial showed it alleviated fatigue and improved quality of life, with noticeable benefits after 4 weeks of use^[5].

“Rhodiola rosea improves stress resilience, energy, and mood by regulating the hypothalamic-pituitary-adrenal (HPA) axis,” adds Dr. Jason Winkelmann.

L-Theanine

L-theanine, an amino acid primarily found in green/black tea leaves and some mushrooms, promotes calm and relaxation without drowsiness.

A 2021 Neurology Therapy study found a single 200mg dose of AlphaWave® l-theanine significantly reduced salivary cortisol (p < 0.001) in healthy adults one hour after dosing, compared to placebo. ^[6]

Vitamin C

A 2024 study published in Stress Health explored how Vitamin C affects cortisol levels in women with chronic stress.

The study found that taking 1000 mg of Vitamin C daily for 2 months significantly lowered elevated cortisol and DHEA-S levels in participants.^[7]

Cortisol dropped from 780 to 446 nmol/L in one group and from 657 to 515 nmol/L in another, suggesting Vitamin C's potential to manage stress-related hormone imbalances.^[7]

Magnolia Bark Extract

“Magnolia Bark (Magnolia officinalis) contains honokiol and magnolol, compounds that calm the nervous system, reduce anxiety, and blunt cortisol surges without sedation,” says Dr. Jason Winkelmann.

A study published in the Journal of the International Society of Sports Nutrition in 2013 found that Magnolia bark extract (Relora®) reduced cortisol levels by 18% in moderately stressed individuals after 4 weeks.^[8]

Are Cortisol Supplements Safe?

Cortisol-lowering supplements, including adaptogens like ashwagandha and Rhodiola rosea, are generally considered safe for short-term use when taken as directed.

“Safety concerns include mild digestive upset or interactions with thyroid, blood pressure, or sedative medications, so medical guidance before starting any supplement is advised,” says Dr. James Lyons.

However, mild side effects such as nausea, drowsiness, or digestive discomfort can occur, and certain supplements may interact with medications or affect conditions like thyroid function.

Long-term safety data are limited, so it’s essential to consult a healthcare provider before starting any regimen, especially if you’re pregnant, nursing, or managing chronic conditions. Choose high-quality, third-party-tested products.

Calming ingredients like GABA, passionflower, magnolia, and ashwagandha may cause drowsiness, especially when combined. Avoid driving until you know how a product affects you, and skip alcohol while taking them.

Some products may carry a California Proposition 65 warning or state-specific sale limits. Always follow the label and warnings on the product you buy.

“Patients on antihypertensives, SSRIs, or benzodiazepines should consult their clinician before starting any adaptogen regimen,” adds Dr. Jason Winkelmann.

How Long Do Cortisol Supplements Take to Work?

Many people take cortisol-support supplements daily for 2 to 8 weeks before noticing effects, but this depends on the ingredient, dose, baseline stress levels, and lifestyle.

Adaptogens for cortisol, like ashwagandha and Rhodiola rosea, may begin to ease feelings of stress and cortisol levels within 2 to 4 weeks of consistent use^[2][5].

Ingredients such as L-theanine or magnesium may offer quicker, short-term support during occasional stress.

Lifestyle Add-ons to Lower Cortisol

• Exercise Regularly: Activities like yoga, walking, or moderate-intensity workouts help regulate cortisol by promoting relaxation and improving sleep quality.
• Adopt Foods to lower cortisol: Foods rich in magnesium, omega-3s, and antioxidants, such as leafy greens, dark chocolate, fatty fish, nuts, and berries, help lower stress. Fermented foods, bananas, eggs, and whole grains also support this.
• Practice Mindfulness: Techniques like meditation, deep breathing, or journaling may help lower cortisol naturally. These practices calm the HPA axis, helping you manage stress naturally.^[9]
• Prioritize Sleep: Aim for 7–8 hours of quality sleep each night. A consistent sleep schedule and limiting caffeine may help keep cortisol levels in a healthy range.

Dr. James Lyons adds, “Personally, I favor pairing a supplement with stress management techniques such as deep breathing, yoga, and healthy lifestyle habits to balance levels of cortisol for sustained well-being naturally.”

Signs Your Cortisol Is Back in Balance

When cortisol levels are balanced, you’ll notice improvements in both physical and mental well-being. Common signs include;

• Steady energy levels throughout the day
• Better sleep quality
• Fewer feelings of everyday stress
• Improved digestion

Combining a cortisol-support supplement with lifestyle changes like mindfulness and exercise may help maintain this equilibrium. These signs are general. Only a lab test can measure your cortisol levels.