Buying guide · Stress and sleep supplements

Best Cortisol Supplements: How the Leading Options Compare

Published 5 October 202610 min read

If you’re shopping for a cortisol supplement, you’ve probably got three tabs open and a magnesium already in the cupboard. This guide puts four options side by side: what’s in each one, how much, how you take it, and what happens if it doesn’t suit you.

One Reddit user summed up the shelf: “Some of it maybe took the edge off, but the wakeups are still bang on schedule.” So we’ve compared what’s actually on each label.

A jar of Jevi Nervous System
Jevi Nervous System, our featured pick in this guide.
The short answer

Four Options, One Question: How Many Jobs Does the Label Cover?

A jar of Jevi Nervous System, front on

Our featured pick: Jevi Nervous System. Six ingredients in two capsules a day, every dose printed, and a 60-day money-back guarantee on your first order. It lists more ingredients than any other product in this comparison.

The others in this guide, A to Z: BioRoot Labs Magnesium Glycinate 3 In 1, Moon Juice SuperYou, Nello Supercalm. Each one does a narrower job, and each is a fair pick for the right person. Details below.

Try it for 60 days

60-day money-back guarantee on your first order

or see why it’s our featured pick ↓
  • BioRoot Labs
  • Moon Juice
  • Nello
How this guide was put together

What We Compared, and Where the Facts Come From

This guide is published by Jevi. We haven’t run a lab test or a trial on any product here, so nothing is ranked by “results”.

What we did: we read each product’s own page on 5 October 2026 and wrote down what the brand itself lists. Format, ingredients and doses, the daily serving, and the money-back guarantee if one is shown. Where a page didn’t say something, the table says “Not listed”.

Brands change formulas and offers. Check the label before you buy, and talk to your doctor or pharmacist if you take medication.

Oct5

Facts as listed on each brand’s product page, 5 October 2026

Before you compare

5 Things to Check Before You Buy a Cortisol Supplement

Most of this is on the back of the bottle. It takes two minutes, and it tells you more than the front.

  1. 1

    Every dose on the label

    A label that lists each ingredient with its milligrams lets you see how much you’re getting. A “proprietary blend” gives you one total and no breakdown.

    Jevi: every ingredient and exact dose listed

  2. 2

    How many jobs the formula covers

    Stress shows up in different places: your mood, your focus, tension in your body, your sleep, the cortisol rhythm through the day. Most single-ingredient products cover one of those. It’s one reason a product can “help a bit” and stop there. One Reddit user put a number on it: “magnesium helps 7%”.

    If magnesium alone helped a bit, that was the product doing the job it’s listed for. You didn’t do anything wrong.

    Jevi: six ingredients, six listed jobs

  3. 3

    Whether it suits the daytime

    Some products are built for the last hour before bed and can leave you “groggy the next day”. If your stress starts at 2pm, look for ingredients listed for calm without drowsiness. One Jevi customer, Margaret: “This unfamiliar sense of calm and level-headedness was just there.”

    Jevi: calm “without knocking you out”†

  4. 4

    How you take it

    Capsules, gummies or a drink mix. How many a day, and when. The routine that works is the one you’ll still be doing in week eight.

    Jevi: 2 capsules once a day

  5. 5

    The guarantee and the price per day

    These products are meant to be taken daily for weeks, so a guarantee shorter than a month or two doesn’t give you much time to decide. Work out the price per day as well as per bottle.

    Jevi: 60-day money-back guarantee, £0.58 a day

A jar of Jevi Nervous System beside ashwagandha root, saffron and fresh botanicals
Featured pick

Jevi Nervous System: Six Ingredients, Two Capsules a Day

Jevi Nervous System
  • 6 ingredients
  • 2 capsules a day
  • 60-day guarantee

Jevi Nervous System is a cortisol and nervous-system formula that used to be sold as Corti-Help. Same formula, new name and label. Jevi describes it as a 6-pathway cortisol formula “designed to support your nervous system, healthy cortisol levels and daily stress recovery, without knocking you out.”†

Here’s what’s in two capsules:

Job (from Jevi’s label)

  • Ashwagandha root extract, close up

    Long-term cortisol support†

    Ashwagandha root extract

    250 mg · 4% withanolides

  • Psychobiotic probiotic blend, close up

    Gut-brain stress support†

    Psychobiotic probiotic blend

    10 billion CFU · L. helveticus 7B, B. longum 3B

  • Saffron extract, close up

    Mood support†

    Saffron extract

    30 mg · 5% safranal

  • Sceletium tortuosum, close up

    Takes the edge off stress†

    Sceletium tortuosum

    20 mg · 5% mesembrine-type alkaloids

  • L-theanine, close up

    Calm focus without drowsiness†

    L-theanine

    400 mg

  • Magnesium glycinate, close up

    Physical tension and wind-down support†

    Magnesium glycinate

    200 mg

That’s six ingredients against four at most for the others in this guide. Three of the six (saffron, sceletium and the probiotic blend) aren’t in any of the other three products. And if you already take magnesium or ashwagandha on its own, both are in here, at 200 mg and 250 mg.

One Jevi customer, S, put it in a line: “Saves on buying lots of different supplements.”

How you take it: two capsules once a day, preferably in the afternoon or early evening, with water. Each capsule is size 0, about 2 cm. The only other ingredient is the vegetable cellulose capsule.

What to expect: Jevi’s own page says it “isn’t a quick ‘calm hit’”. It’s taken every day, and the deeper benefits build with consistent daily use.† Everyone responds differently. Your first order has 60 days to decide.

Two capsules in an open hand, the jar on the table

Two capsules a day. About 2 cm each.

Why it’s our featured pick

  • Six ingredients, the most of any product in this comparison
  • Every ingredient and exact dose on the label, no hidden blend
  • Calm focus “without making you feel drowsy”† (L-theanine, 400 mg); Jevi’s directions say afternoon or early evening
  • Two capsules once a day
  • Raw ingredients third-party lab tested, made in GMP-certified facilities
  • 60-day money-back guarantee on your first order, the joint longest in this guide
  • 95,000+ customers, by Jevi’s count

Worth knowing

  • It’s a daily product. No help for the odd bad night.
  • Its magnesium is 200 mg of magnesium glycinate. If magnesium is the only thing you want, BioRoot Labs lists 1,800 mg of magnesium compounds per serving.
  • It isn’t the cheapest. Sarah, a Jevi customer: “Really helps. A little pricey but works.”
  • If you take medication for mood, have a thyroid condition, or are pregnant or breastfeeding, check with your doctor first.
Jevi customer
“My second otder . Very pleased with the results of this product . Definitely sleeping much better since taking these supplements”
Soraya
Jevi customer
“These really seem to work. I am getting more regular undisturbed deep sleeps.”
Monica

Jevi customers, as pictured on tryjevi.com. Individual experiences vary.

Try it for 60 days

60-day money-back guarantee on your first order

Two capsules a daySix ingredients, every dose on the labelIngredients third-party lab testedTrusted by 95,000+ customers60-day money-back guarantee on your first orderShipped the next day
The other options

Three More Cortisol and Stress Supplements, What Each Brand Lists

Each of these is a real option. Here’s what each brand lists, who it suits, and how it differs from Jevi.

  • BioRoot Labs Magnesium Glycinate 3 In 1

    Formatcapsules, 2 once a day

    What’s in it
    three forms of magnesium per 2 capsules: magnesium glycinate 1,000 mg, magnesium malate 400 mg, magnesium citrate 400 mg (1,800 mg of magnesium compounds in total).
    A fair pick if
    you want a high magnesium dose and nothing else. Vegan, and the brand says it’s third-party tested. 60-day money-back guarantee listed.
    How it differs from Jevi
    one mineral in three forms. No adaptogen, no L-theanine.

  • Moon Juice SuperYou

    Formatcapsules, 2 every morning, 30 servings a bottle

    What’s in it
    four adaptogens: organic ashwagandha 250 mg, organically grown shatavari 450 mg, wildcrafted rhodiola 150 mg, organic amla 150 mg.
    A fair pick if
    you want an adaptogen-only formula taken in the morning. Vegan, and the brand says the finished product is tested at a third-party lab. 45-day money-back guarantee listed.
    How it differs from Jevi
    the same listed amount of ashwagandha (250 mg), plus three adaptogens Jevi doesn’t use. No magnesium, no L-theanine.

  • Nello Supercalm

    Formatpowdered drink mix, one serving stirred into 8 oz (about 240 ml) of water; 20 travel packets or a 30-serving tub

    What’s in it
    per serving: KSM-66 ashwagandha 300 mg, L-theanine 400 mg, magnesium glycinate 100 mg, vitamin D3 1,000 IU. No added sugar.
    A fair pick if
    you’d rather drink it than swallow capsules. Several flavours.
    How it differs from Jevi
    four ingredients against Jevi’s six, with three in common (ashwagandha, L-theanine, magnesium). A drink you mix each time. We couldn’t find a guarantee on the product page.

Ingredients, doses, serving and guarantee as listed on each brand’s own product page on 5 October 2026. Brand and product names belong to their owners. This guide isn’t affiliated with or endorsed by them.

Side by side

Cortisol Supplements Compared, Label by Label

Every product here lists its doses, so that row is a tie. The differences show up in how many ingredients each formula uses and how long you get to decide.

A jar of Jevi Nervous System, front onJevi Nervous SystemBioRoot Labs Magnesium Glycinate 3 In 1Moon Juice SuperYouNello Supercalm
FormatCapsulesCapsulesCapsulesDrink mix
Daily serving2 capsules2 capsules2 capsules1 serving in water
Active ingredients61 (magnesium, 3 forms)44
Every dose listed
Ashwagandha250 mg root extract, 4% withanolidesNot listed250 mg organic (form not stated)300 mg KSM-66
L-theanine400 mgNot listedNot listed400 mg
Magnesium (as each label lists it)200 mg glycinate1,800 mg (glycinate, malate, citrate)Not listed100 mg glycinate
Saffron30 mgNot listedNot listedNot listed
Sceletium20 mgNot listedNot listedNot listed
Probiotic blend10 billion CFUNot listedNot listedNot listed
Other activesNoneNoneShatavari, rhodiola, amlaVitamin D3
Money-back guarantee on product page60 days (first order)60 days45 daysNot listed

As listed on each brand’s own product page, 5 October 2026. Magnesium is shown as the figure each label prints for its magnesium compound. Not every label states elemental magnesium, so the figures are compared as printed. Prices left out because the brands sell in different currencies. Check each label before you buy.

If magnesium is all you want, BioRoot Labs lists more of it per serving. If you want healthy cortisol levels, calm, focus, mood, the gut-brain link and physical wind-down covered in one daily serving, Jevi is the only one in this table that lists an ingredient for each.

Try it for 60 days

60-day money-back guarantee on your first order

Before you decide

What People Ask When They’re Comparing

Isn’t six ingredients just a kitchen sink?

Each one has a listed dose and a listed job, and there’s no hidden blend. The only other ingredient is the vegetable cellulose capsule.

I already take magnesium. Should I take something else with it?

Jevi’s formula has magnesium glycinate in it (200 mg), plus five ingredients listed for other jobs: healthy cortisol levels, a calmer state, focus, mood and the gut-brain connection. If you take other supplements, check with your doctor or pharmacist before combining them.

Will it make me drowsy at work?

It’s designed for calm “without knocking you out”.† L-theanine, at 400 mg, is listed for calm focus without drowsiness.† Two capsules once a day, preferably in the afternoon or early evening.

How long before I notice anything?

It isn’t a quick “calm hit”. It’s taken every day, and the deeper benefits build with consistent daily use.† Everyone responds differently. Your first order has 60 days.

Can I take it if I’m on medication, pregnant or breastfeeding?

Check with your doctor or pharmacist first. Jevi recommends that if you take prescription medication for anxiety or mood, or have a thyroid condition, and the same goes if you’re pregnant or breastfeeding.

What if it doesn’t suit me?

Your first order is covered: return the bottle within 60 days for a full refund of the product price. Return shipping, and the shipping on your original order, are yours.

When does my order ship?

Orders are shipped the next day.

Our featured pick

Jevi Nervous System, 60 Days to Decide

Six ingredients, every dose on the label, two capsules a day. If you’ve worked through the single-ingredient options and each one helped a bit, this is the one in this guide that lists the most ingredients in a single serving.

The Current Offer on Jevi’s UK Store

  • £0.58 a day
  • 60-day money-back guarantee on your first order
  • Shipped the next day
Shop Jevi

Choose 2 or 4 bottles on the next page · 60-day money-back guarantee on your first order

  • 60-day money-back guarantee
  • Shipped the next day
  • 2 capsules daily
  • Ingredients third-party lab tested
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
“Slept through the night. First time in years.”
Vanessa, Verified buyer

Prices as listed on Jevi’s UK store on 5 October 2026. The store sets the offer and can change it.

This guide is promotional content published by Jevi for Jevi Nervous System. Competitor information is taken from each brand’s own product page on 5 October 2026 and may have changed since.

Customer reviews as published on tryjevi.com and in Jevi’s verified-buyer reviews on Judge.me. Individual experiences vary and results are not guaranteed.

†This product is not intended to diagnose, treat, cure or prevent any disease. Always read the label and follow the directions for use. Individual results vary.

Sources

  1. BioRoot Labs Magnesium Glycinate 3 In 1: brand product page, biorootlabs.com, read 5 October 2026
  2. Moon Juice SuperYou: brand product page, moonjuice.com, read 5 October 2026
  3. Nello Supercalm: brand product page, drinknello.com, read 5 October 2026
  4. Jevi Nervous System: Jevi’s product page and reviews, tryjevi.com, read 5 October 2026