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Mental Booster

Feeling a little stressed, struggling to sleep? Improve your ability to handle stress and anxiety - backed by science.

✓ Unique anti-stress formula with organic vitamin B12

✓ Naturally lifts your mood with plant-based happiness hormones

✓ Noticeable after the first application

✓ 100% pure, vegan & laboratory tested

£35.00 Regular price £50.00

↑ 82%

saw an improvement in mood

↑ 86%

reported that they felt more calm

↓ 79%

saw reduced stress levels
Offering:30-day supply
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Discreet & free shipping (1-2 business days)

180-day satisfaction guarantee

Natural ingredients only

Product Info
Feel healthier from within, and unlock long-term benefits with just one daily capsule. Anxiety is the affliction of today’s world. But the solutions we saw either came with substantial side effects or were ineffective. So we set out to create a better alternative. A formula which delivered proven results, backed by clinical data.
How to use
  • Take one capsule each day.
  • You’ll notice an immediate calming sensation.
  • However the real magic happens when you take consistently, each day, over a few weeks.
  • In studies, 69% felt more zen, 77% felt more optimistic.

Cautionary advice: If you are taking medication or are under medical supervision, consult your doctor before taking any food supplement. Keep out of sight and reach of children. Do not take if seal is broken. This product is not intended to diagnose, treat, cure or prevent any disease.

Scientific Evidence

In an open-label observational single-arm clinical trial to study the efficacy of the ingredients included in the Mental Booster, its effect on sleep quality, sleep duration, anxiety, mood, and stress has been evaluated and led to the following results: 

  • 82% of subjects saw an improvement in mood
  • 86% of subjects reported that they felt more calm
  • 79% of subjects saw reduced stress levels

See the full report here.

Key Ingredients

Vitamin A: Essential for brain function and mood regulation, supporting neurotransmitter production and immune health.

Thiamine (Vitamin B1): Vital for nervous system function, energy metabolism, and mood stability.

Riboflavin (Vitamin B2): Supports brain health, neurotransmitter balance, and antioxidant protection against oxidative stress.

Niacin (Vitamin B3): Crucial for serotonin synthesis, mood regulation, and energy metabolism, reducing anxiety and depression symptoms.

Folate (Vitamin B9): Essential for neurotransmitter production, mood stability, and fetal brain development during pregnancy.

Cobalamin (Vitamin B12): Supports nervous system function, neurotransmitter synthesis, and cognitive health, alleviating fatigue and mood changes.

Clinically proven to improve your mental health

Take one capsule once-daily.
Reap the rewards all night.

Backed by research.

All-natural ingredients.
No gimmicks.

Free shipping
- always.


According to research, our product reduces anxiety and elevates mood. If you don’t see results after 180 days of treatment, you'll get a voucher for any of our other treatments. Learn more about our promise here.

Backed by clinical research

Our product is backed by evidence from more than 100 research studies, and has undergone independent laboratory testing. It is formulated with award-winning natural extracts derived from the most bioactive components, which have been clinically validated to substantially alleviate anxiety and enhance mood. Learn more here.

The natural Mental Health supplement

🌿 Reduce anxiety & elevate mood naturally

Formulated to combat daytime anxiety & stress.

❌ No prescription needed

As an all-natural supplement there's no tele-health visit or prescription requried.

📦 Discreet & convenient

We ship your treatment in discreet packaging for your confidence.

😊 Free shipping - always

As with all our products, shipping is for free - always.

Clinical studies show that it works


82% of subjects saw an improvement in mood


86% of subjects reported that they felt more calm


79% of subjects saw reduced stress levels

Study Participants: 28 study subjects, between 24 and 48 years of age, presenting (self-perceived) one or several of the following: mild to moderate sleep issues, mild to moderate anxiety, stressful lifestyle. Find more details here.

100% Natural Ingredients

Screenshot_2023-10-12_at_19.00.00 - Haelf
Vitamin A
Screenshot_2023-10-12_at_19.01.14 - Haelf
Screenshot_2023-10-12_at_19.02.22 - Haelf
Screenshot_2023-10-12_at_19.04.04 - Haelf
Screenshot_2023-10-12_at_19.05.39 - Haelf
Screenshot_2023-10-12_at_19.04.29 - Haelf

See the full list of ingredients here.

Our formula is as unique as you

We provide you with an award winning natural mental health treatment, extracted from the most bioavailable compounds. It’s clinically proven to significantly reduce anxiety & elevate mood.

Comparison Table
Haelf Other Brands
Clinically proven to work
Doctor recommended
Sugar free, plant based & vegan
Drug free
Travel friendly

You might be wondering

How long does a bottle last?

Every jar contains a 30-day dosage, consisting of 30 capsules.

We recommend taking 2 capsules in the morning along with a glass of water or juice to experience the benefits throughout the day.

When will I notice results?

While certain customers may notice benefits as early as the first month, the complete spectrum of advantages that this supplement provides becomes evident during the third month - and beyond. This is when your brain establishes its new baseline.

Water-soluble vitamins, such as B-vitamins, are swiftly absorbed by the body. Conversely, fat-soluble vitamins like vitamin D and omega-3 require more time to attain their optimal levels, emphasizing the importance of patience in this process.

Here's what to expect:

  • 1-4 Weeks: Improved mood. You’ll feel more optimistic. 
  • 4-8 Weeks: Experience improved ability to deal with stressful situations.
  • 8 Weeks+: Noticable changes in response to anxiety. Improved sleep and emotional balance.
What makes this supplement different from others?

We exclusively use plant-based nutrients in their most effective active forms to ensure optimal absorption by your body, allowing you to derive maximum benefit from all the nutrients.

Our products are not only clean but also free of allergenic substances, toxins, GMOs, and gluten. Moreover, we steer clear of fillers and bulking agents because we are committed to delivering only the highest quality for your brain and body. Furthermore, we regularly review and refine our formula every three months to provide you with the finest product.

Are there any negative side effects?

In internal studies, no negative side effects were reported for our treatment. In fact, the ingredients in our supplement often come with what we call “side benefits” such as better sleep, focus, energy, and mood.

Can I take the supplement with other medications?

While our supplement is generally safe for most individuals, it is essential to consult with a healthcare provider if you are taking other medications or supplements. They can advise on potential interactions and ensure the supplement is suitable for your specific health needs.

How do subscriptions work?

Consistency is key to great results. Our products are designed to build over time so we recommend committing to at least 3 months to see the full health benefits.

By signing up to subscription for any product, you agree to automatic renewal every 30 days. For your first order, we will send you a shipment with a 30 day supply of your chosen products, and your subscription will automatically continue to renew every month. You may choose to cancel at any time after the initial minimal term of 2 months. 

Following the initial minimum term of 2 months, if you wish to cancel your subscription, you can do so by emailing at least 48 hours before your next order renewal or by cancelling in your account. 

How do I take this supplement?

For optimal results, take the supplement as directed in our treatment guide. Usually, it involves taking a specified dosage with water once a day. Avoid exceeding the recommended dosage unless advised by a healthcare professional.

Do you offer a money-back guarantee?

Yes, we stand behind the quality and effectiveness of our product. If you are not satisfied with the results after using our supplement as directed, we offer a money-back guarantee within a specified time frame. Please check our refund policy for more details.

More questions? Reach out to us at

Mental power for champions

Our mental health supplement has been designed by leading clinicians in order to fuel champions in sport & everday life.

"Obsessed with these capsules. Easy to take and quick onset of action. This treatment has allowed me to juggle sports, business and life - a true game changer for me thus far."

NICKI — Ultramarathon Runner & Entrepreneur

This supplement has propelled me forward both as an athlete as well as in my professional life as an investor.

MAXIME — Triathlet & Investor

Clarity and focus are important traits for my work as an architect. This supplement helps me reach the top in both.

Jakob - leading architectual designer

I am thankful to Haelf and their development team to be able to count on this mental boost during my work. It's a key to success & happiness for me.

Web3 Thought Leader & Content Creator

Ever since taking this supplement, I have noticed an improvement in both my mood levels as well as my quality of sleep.

Michael - Ultramarathon Runner & Entrepreneur

Customer Reviews

Based on 180 reviews
Great product - I can def recommend

I am a college student, and this semester I had a 6 hour lab class that was almost unbearable to sit through. I really struggle with focusing, always have. I came across this product looking for a healthy/natural remedy. At first, I was pretty skeptical since I had tried other products in Nootropics that hadn't worked. After a few days, I could really start to see an improvement in my focus and testing! I was testing over 10% higher on my labs and exams than before I'd taken the Mental Booster. I also noticed I was excited to learn, had a better attitude, was getting my work done faster and I didn't have as many wandering thoughts that made me get sidetracked. I was right on track! I've also taken this class 2 times already and was super burnt out and unmotivated when I could no longer focus on the material. Happy to say I just found out that not only I passed, but I got a B in the class! I don't want to say that was all bcs of Mental Booster, but it definitely helped me push through and get the refocus I needed to do so!

Noticed effect y'all

I've noticed my mood improving since I began taking this. It's subtle but definitely there. How do subscriptions work?

Thansk guys

I've noticed my mood improving since I began taking this. It's subtle but definitely there.

Much better sleep/more calm

Three weeks in and I'm already sleeping better. My mind seems clearer in the mornings.

Good stuff!

Three weeks in and I'm already sleeping better. My mind seems clearer in the mornings.

David_Liu - Haelf

Dr. David Liu, PhD

The doctor trusted Mental Health supplement

"Haelf is truly enhancing healthcare through clinically proven treatments and telemedicine."

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