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Nulevel™ Mix Blender

Nulevel™ Mix Blender

 4.8/5 | 1,253 verified reviews

Over 10,000 satisfied customers

Weight Loss Stress Anxiety Cortisol levels
Slimmer Face Reduces water retention for a more sculpted face
Cortisol Balance Helps naturally regulate cortisol levels
Abdominal fat Helps reduce stubborn belly fat
Well-being Relieves stress and supports daily well-being
Clinically proven
Clinically Validated Ingredients

Ashwagandha, Magnesium Bisglycinate, Vitamin D, L-Theanine (sugar-free) Learn more

S
Sandrine — Nulevel™ User
★★★★★ View Trustpilot reviews

"I've been using this product for 4 months now, and honestly, the results are amazing: I wake up feeling rested, without that tired feeling in the morning, my joint pain is gone, and I have tons of energy from morning to night. I've even started working out again 😍"

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Who is it for?

Designed for stressed-out adults who want to better regulate their cortisol levels, reduce facial puffiness, reduce abdominal fat, and support their daily well-being.

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Ingredients

Our premium package includes:

🌿 Ashwagandha – An adaptogenic herb that helps reduce cortisol levels and restore balance to the body’s response to prolonged stress.

🍵 L-Theanine – Promotes relaxation and mental clarity without causing drowsiness.

⚡ Magnesium bisglycinate – Calms the nervous system and promotes deep sleep and better recovery.

☀️ Vitamin D3 – Supports hormonal balance and overall vitality.

Inactive ingredients: natural raspberry flavor , natural lemon flavor, citric acid. Color: beet extract. Sweetener: stevia extract.

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Expert Opinions

Cortisol is the hormone that helps us cope with stress. In and of itself, it’s valuable: it wakes us up in the morning, regulates our energy levels and blood sugar, and helps control inflammation. The problem arises when cortisol levels remain too high for too long due to chronic stress: this exhausts the body, causes facial swelling, disrupts sleep, and promotes fat storage, particularly around the abdomen. The goal is not to eliminate cortisol, but to restore its balance.

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How to Enjoy It

Every morning, drop a stick into a large glass of cold water, stir, and enjoy. Just one stick a day is all you need to start your day feeling calm and balanced.

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Essai 30 jours sans risque

Try it with complete peace of mind. If you’re not fully satisfied, you have 30 days to get a full refund. No stress—just the assurance of a purchase you can trust.

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GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

GMP Standards

Tested by an independent laboratory

Never tested on animals

No artificial sweeteners

Only premium assets

What if the real obstacle wasn't your plate… but your cortisol?

You eat healthy. You’re putting in the effort. And yet, the scale isn’t budging. The hidden culprit? Cortisol, the stress hormone. When its levels get too high, your body switches to “survival mode”: it stores fat—especially around the belly—triggers emotional eating, and puts your metabolism on hold.

Try it risk-free for 30 days

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You'll start to feel the first effects in just 30 days

How Nulevel™ Helps Your Body Regain Its Balance

  • My belly has gone down, and my jeans finally button up. I've been waiting two months for this.

    Camille F., 35 (verified)

  • I'm better able to handle stress at work, and I sleep soundly. Waking up is much easier.

    Thomas L., 38 (verified)

  • In the morning, my face is much less puffy. People ask me if I've just gotten back from vacation.

    Julie B., age 40 (verified)

    A combination of four clinically studied active ingredients to help rebalance your cortisol levels

    Try it risk-free

    Ashwagandha

    An adaptogenic herb that helps reduce cortisol levels and restore balance to the body's response to prolonged stress.

    L-Theanine

    Promotes relaxation and mental clarity, without causing drowsiness.

    Magnesium bisglycinate

    Calms the nervous system and promotes deep sleep and better recovery.

    Vitamin D3

    Supports hormonal balance and overall vitality.

    🎁 FREE today — the program that makes your detox ten times more effective

    Free · Value: 39€ The Nutrition Protocol BalanceCortisol 30 days to relieve your stress and enhance your wellness routine, day after day. 30-Day Program · Recipes & Meal Plans
    Try it risk-free

    Join thousands of satisfied customers

    Excellent 4.8 / 5
    1,253 verified reviews

    • I was eating healthy, but nothing was changing

      Salads, working out three times a week, no cheating… and yet the scale wouldn’t budge. After doing some research, I realized that my cortisol was sabotaging everything. After three weeks of Nulevel, I finally saw my body respond.

      Sabrina, 39 · Verified Purchase

    • I thought it was because of my age

      At 48, I used to blame everything on my slowing metabolism. In reality, it was stress. Since I started using Nulevel, my stomach has gotten flatter, and I haven't changed anything about my diet.

      Nadia, 48 · Verified Purchase

    • I had REALLY tried everything

      Gluten-free diets, probiotics, lymphatic drainage, detox teas… nothing worked. Nulevel was my last-ditch effort—I hardly even believed it would work. Two weeks later, I had less water retention and a lighter feeling in my stomach.

      Aurélie, 42 · Verified Purchase

    • My face is finally going down

      Every morning I'd wake up with puffy features. I cut back on salt and drank more water, but nothing helped. With Nulevel, my face looks clearer, and people say I look "rested."

      Camille, 35 · Verified Purchase

    • The Belly That Just Wouldn't Go Away

      That little bit of weight I'd gain at the end of the day was driving me crazy, even with all the cardio. In just a few weeks, I've noticed less bloating and a slimmer waist. I finally feel like my efforts are paying off.

      Manon, 31 · Verified Purchase

    • Skeptical… and blown away

      I didn't believe it at all; I bought it "just to see." The result: I feel more stable, less tense, and my clothes fit better. I honestly didn't expect that.

      Delphine, 45 · Verified Purchase

    • My sugar cravings are gone

      Around 5 p.m., I couldn't resist something sweet. Since starting Nulevel, my cravings have subsided on their own, my energy levels have stabilized, and I'm snacking much less.

      Inès, 29 · Verified Purchase

    • My mind never stopped

      I was constantly stressed, even when I was resting. Exercise and meditation weren't enough. Nulevel has become part of my evening routine: I can finally unwind and sleep better.

      Karine, 51 · Verified Purchase

    • I wake up feeling rested

      Light sleep, waking up in the middle of the night, my mind racing… After two weeks, I’m sleeping more soundly and I wake up without that constant feeling of fatigue.

      Pauline, 37 · Verified Purchase

    • My body is finally responding

      Irregular periods, fatigue, mood swings. I'm not saying it's magic, but since I started taking Nulevel, I've been feeling more balanced and energetic in my day-to-day life.

      Céline, 33 · Verified Purchase

    • Right in the midst of menopause, real support

      Bouts of stress, trouble sleeping, water retention. Ashwagandha and magnesium help me get through this time much more calmly. I can't do without them anymore.

      Valérie, 54 · Verified Purchase

    • Energy from morning to night

      No more afternoon slump. I can get through the day without extra coffee, and I finish my evenings without feeling drained. Easy to take, great taste.

      Fanny, 40 · Verified Purchase

    • My digestion has improved

      Less bloating, less tightness in my stomach at night. Magnesium glycinate agrees with me very well, even with my sensitive stomach. It really makes my daily life more comfortable.

      Amélie, 36 · Verified Purchase

    • A man, too—it works

      Work-related stress, poor recovery, and a growing belly. In just one month, I'm sleeping better, I'm calmer, and my figure is getting slimmer. I'm blown away.

      Julien, 44 · Verified Purchase

    • Consistency Pays Off

      The first few days, nothing spectacular. Then, after taking it every morning, everything fell into place: less stress, better sleep, a flatter stomach. The key is consistency.

      Sonia, 47 · Verified Purchase

      Frequently Asked Questions

      The Questions Everyone Is Asking

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      Is it suitable for all diets?

      Absolutely. Nulevel Cortisol Balance has been formulated to suit as many people as possible: it is vegan, gluten-free, GMO-free, and free of common allergens such as soy and lactose.

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      Is it suitable for use after menopause?

      Absolutely. Nulevel Cortisol Balance is ideal for this stage of life. Natural ingredients like ashwagandha and magnesium help support hormonal balance, relieve stress, and promote better sleep—all of which are common needs during and after menopause.

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      Can it cause digestive discomfort?

      The formula is designed to be gentle on the stomach, particularly thanks to magnesium glycinate, which is easily absorbed and known for its high tolerability. If you experience mild sensitivity, take it with a meal for greater digestive comfort.

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      When during the day should I take it?

      It depends on what you're looking for:

      In the morning—for energy, focus, and better stress resilience throughout the day.

      In the evening—to promote relaxation and restful sleep.

      You can also split the dose between the morning and evening for best results.

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      How long does it take for the first effects to appear?

      Most users notice improvements in stress levels, mood, and energy after 1 to 2 weeks of regular use. For more profound effects—such as hormonal rebalancing or effects on cortisol-sensitive areas—allow 4 to 6 weeks of daily use. The real secret: consistency.

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      Can it be taken if you have high blood pressure or are taking medication for high blood pressure?

      As a precaution, we do not recommend Nulevel Cortisol Balance for people with high blood pressure or those taking antihypertensive medication, unless approved by their healthcare provider. Certain natural active ingredients may affect blood pressure or interact with current medications.

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      Is it safe for people with heart problems?

      If you have a history of heart disease, arrhythmia, heart failure, or are undergoing cardiovascular treatment, consult your doctor before taking this product. As a precaution, we do not recommend this product without appropriate medical supervision.

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      Can it be taken if you have liver disease or fatty liver?

      If you have a liver condition, steatosis (fatty liver), or any other liver disease, taking this product without prior medical advice is not recommended. Since the liver plays a central role in the metabolism of the active ingredients, medical supervision is preferable in these situations.

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      Is it compatible with intensive or long-term medical treatment?

      If you are undergoing intensive or long-term treatment, or if your condition requires regular medical monitoring, we recommend that you consult a healthcare professional before taking this product to rule out any risk of interaction.

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      Can it be used in conjunction with thyroid treatment?

      As a precaution, Nulevel Cortisol Balance is not recommended for people undergoing thyroid treatment—particularly those taking Levothyrox®—without prior medical consultation. Certain active ingredients may interfere with hormonal balance or the absorption of the medication.

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      Is it appropriate for patients with a history of hormone-dependent cancer?

      As a precaution, we do not recommend this product for individuals with a personal history of hormone-dependent cancer or who are undergoing treatment for this condition, unless otherwise advised by a healthcare professional.

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      Can it be taken after chemotherapy?

      After chemotherapy or other intensive treatment, it’s best to consult your doctor before starting, to ensure it’s compatible with your condition and your current treatment plan.

      FitSlim arrives in Paris – Come and experience it for yourself!

      FitSlim is opening its very first pop-up store in Paris!

      This is a unique opportunity to discover our products in person, try them out right there, and get personalized advice from our team.

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