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Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
More than 4.7 million customers from all over the world
020 8089 0131

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Maja
Maja
Star Star Star Star Star
5 / 5

I’ve been feeling a lot less tired since taking this magnesium and b-complex combo for a few weeks.

Magnesium + B-complex

Food supplement with sweetener
Star Star Star Star Star
4.92 / 5
Verified 71 Verified reviews

Advanced formula with magnesium and B vitamins

  • Powerful formula for optimal results
  • Covers your daily needs of magnesium and B vitamins
  • Contributes to the reduction of tiredness and fatigue¹
  • Contributes to normal muscle function¹
  • Contributes to electrolyte balance¹
  • Contributes to normal energy-yielding metabolism¹
  • Contributes to normal psychological function¹
  • No clumping, no residue, mixes completely every time
  • Easy-to-mix powder for convenient daily use
Nature’s Finest already has over 4,7 million customers from all over the world!
Neto 150 g | for 30 days
How to Use

The recommended daily dose is 5 g (1 scoop), add in a glass of water and stir.

Warning:

A food supplement is not a substitute for a balanced, varied diet and a healthy lifestyle. The recommended daily dosage must not be exceeded. Keep out of reach of children! We do not recommend pregnant women and nursing mothers to consume the product.

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Key Ingredients

Magnesium + B-complex – a food supplement with sweetener.

Ingredients: magnesium citrate, inulin, orange flavour (3 %), stabilizer: cellulose, B-complex mix (Thiaminmononitrate, Riboflavine, Pyridoxine hydrochloride, Cyanocobalamin, Folic acid, Calcium-D-pantothenate, Nicotine amid), sweetener: steviol glycosides from stevia.

Nutritional Value
per dosage (5 g) NRV %
Magnesium 375 mg 100 %
Vitamin B1 1,1 mg 100 %
Vitamin B2 1,4 mg 100 %
Vitamin B6 1,4 mg 100 %
Vitamin B12 2,5 μg 100 %
Folic acid 200 μg 100 %
Pantothenic acid 6 mg 100 %
Niacin 16 mg 100 %

* NRV = Nutritional Reference Value

Certifications
Why Independent Testing Is Essential - At Nature’s Finest, we believe that wellness starts with trust. Here’s what our testing covers:
  • Ingredient Precision: We verify that the nutrients listed on our labels are present in the exact amounts promised.
  • Purity & Cleanliness: Each product is screened for substances such as heavy metals (including mercury, lead, and arsenic), common allergens (like soy, dairy, nuts, and gluten), and microbial threats like E. coli and salmonella.
  • Nutrient Verification: We confirm that both macronutrients and micronutrients are present and potent.
Explore our IFS Food Standard certification—the highest level of quality assurance in the industry—and see why Nature’s Finest stands above the rest. View our certification here.
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Delivery in 2 business days
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Reviews

4.92
★ ★ ★ ★ ★
Based on 71 reviews
5★
68
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0
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Everything you need to know:

I feel good. Is this combination still a good choice for me?

Yes, everyone can benefit from high-quality magnesium and B-complex, especially if you may not be getting enough of these nutrients from your diet.

Regular use of this product contributes to the reduction of tiredness and fatigue¹, supports normal muscle function¹, helps maintain electrolyte balance¹, and more.

Why combine magnesium with B-complex?

Because together they provide comprehensive nutritional support while enabling the intake of two important nutrients in a single food supplement.

When stress, intense study, or physical demands leave you mentally and physically drained, your body needs the right nutrition.

Magnesium contributes to normal muscle and psychological function and normal functioning of the nervous system, while riboflavin contributes to normal energy-yielding metabolism.

Will this help with my muscle recovery after workouts?

Absolutely. Magnesium contributes to normal muscle function and to electrolyte balance, which are essential for muscle recovery. Magnesium contributes to normal protein synthesis as well.

Our customers also confirm it works

star star star star star 4.9 / 5
Anna
star star star star star 5/5

I run every day and I love how this helps with muscle recovery and energy. I usually take it in the morning and I love it.

Anna
Maya
star star star star star 5/5

I take this every day and notice that I feel less tired and more focused.

Maya
Nicole
star star star star star 5/5

I'm a medical student and this has been so helpful for my mental state during the last exam season. It’s an incredibly effective supplement.

Nicole
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Enjoy the many benefits and reduce fatigue¹ with magnesium and B-complex

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Are you dealing with stress-related muscle tension and fatigue?

Magnesium contributes to normal muscle function and contributes to the reduction of tiredness and fatigue.

Feature icon

Do you need support for normal psychological function?

Both magnesium and vitamin B12 contribute to normal psychological function and normal functioning of the nervous system.

Feature icon

Are you an athlete or very active person?

Do you work out? Magnesium is incredibly important for you. It contributes to electrolyte balance, normal protein synthesis, and normal muscle function.

Riboflavin contribute to normal energy-yielding metabolism and the protection of cells from oxidative stress.

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Product option image

Choose our Magnesium + B-Complex formula

  • Perfect for times of high stress

Whether you’re a student, a new parent or facing stress at work, this formula can help you.

It’s designed for people who push themselves and need support: Magnesium contributes to the reduction of tiredness and fatigue, contributes to normal energy-yielding metabolism and normal psychological function.

  • Dual-action relief for difficult, stressful periods

Are you often stressed? Magnesium addresses the physical aspects ‒ contributing to normal muscle function, electrolyte balance, and normal functioning of the nervous system.

Riboflavin addresses the energy aspects ‒ contributing to normal energy-yielding metabolism and the reduction of tiredness and fatigue.

  • For active people

Magnesium + B-complex was made with active people in mind. Magnesium contributes to normal muscle function, to normal energy-yielding metabolism and to normal protein synthesis.

  • High-strength formula

With 375 mg of magnesium per serving in this formula, you cover your daily requirement for magnesium and for B-complex.

  • Natural orange flavour

Our refreshing orange taste makes this product something you’ll actually look forward to taking, encouraging the consistent daily use that delivers real results.

Start taking your Magnesium and B-Complex TODAY

If you start taking it TODAY:

  • You cover 100% of your magnesium and B-complex daily requirement
  • You support normal muscle function and electrolyte balance¹
  • You contribute to normal energy-yielding metabolism¹
  • You reduce tiredness and fatigue¹
  • You support normal psychological function¹

If you start taking it later:

  • You continue managing fatigue without nutritional support
  • You miss the benefits of magnesium and B vitamins working together
  • You do not support normal psychological function now
  • You do not support normal muscle function and electrolyte balance now

Made from quality ingredients

Magnesium

1. Magnesium

Magnesium contributes to the normal functioning of the nervous system, muscle function, normal energy-yielding metabolism, and also contributes to electrolyte balance.

B-complex

2. B-complex

The B complex is a group of vitamins B1, B2, B6, B12, folic acid, pantothenic acid and niacin, which are important for our nervous system. In addition to their common function, each of the B vitamins has other important roles in our bodies.

Orange flavour

3. Orange flavour

The orange flavour adds freshness and great taste.

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Traceability of our raw materials

We select every ingredient with the utmost care and monitor it closely to ensure optimal efficacy—supported by scientifically proven effectiveness.
Our commitment to transparent traceability guarantees the integrity and excellence of every component in our products.
Our products are certified in accordance with the IFS Standard under registration number: 00063/0, and by KON-CERT under certificate number: EPR-26420/22-1.

High-quality ingredients

Carefully selected, pure formulation.

Carefully selected, pure formulation

Environmentally friendly packaging.

Less waste, more care for the planet

Third-party tested according to verified standards.

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60-Day Money-Back Guarantee

To make your purchase risk-free, we offer a 60-day money-back guarantee.
If you’re not completely satisfied with the product, simply contact us—we’ll refund your money.

Magnesium + B-complex

Magnesium + B-complex

star star star star half star 4.92 / 5 check icon Verified reviews (71)

Magnesium citrate with complete B-complex

  • Contributes to the reduction of tiredness and fatigue¹
  • Contributes to normal muscle function¹
  • Contributes to electrolyte balance¹
  • Contributes to normal energy-yielding metabolism¹
  • Contributes to normal psychological function¹
  • Contributes to normal functioning of the nervous system¹
  • Perfect for students, athletes, and high-stress professionals

Frequently asked questions from our users

FAQ

How and why does it work?

The package contains two products, both offering numerous benefits. Magnesium contributes to normal muscle function¹, while niacin contributes to the reduction of tiredness and fatigue. In addition, the other B-complex vitamins provide a range of further benefits.

FAQ

Who is it for?

For students, parents, and professionals during demanding periods, active individuals needing muscle support1, and anyone who wants to add a tasty and beneficial ritual to their daily routine.

FAQ

What does it taste like?

Nature’s Finest Magnesium + B-complex powder has an orange flavour.

FAQ

What ingredients does it contain?

Magnesium citrate, inulin, natural orange aroma, stabilizer: cellulose powder, B-complex , Sweetener: steviol glycosides from stevia.

FAQ

How long does shipping take?

We will do our best to process your order the same day and send it for delivery. On average, packages are delivered in 2 business days.

FAQ

What if I don't like it?

No worries! If the product does not meet your expectations, we offer a 60-day refund.

Previous
Next
Maja
Maja
Star Star Star Star Star
5 / 5

I’ve been feeling a lot less tired since taking this magnesium and b-complex combo for a few weeks.

Magnesium + B-complex

Food supplement with sweetener
Star Star Star Star Star
4.92 / 5
Verified 71 Verified reviews

Advanced formula with magnesium and B vitamins

  • Powerful formula for optimal results
  • Covers your daily needs of magnesium and B vitamins
  • Contributes to the reduction of tiredness and fatigue¹
  • Contributes to normal muscle function¹
  • Contributes to electrolyte balance¹
  • Contributes to normal energy-yielding metabolism¹
  • Contributes to normal psychological function¹
  • No clumping, no residue, mixes completely every time
  • Easy-to-mix powder for convenient daily use
Nature’s Finest already has over 4,7 million customers from all over the world!
Neto 150 g | for 30 days
How to Use

The recommended daily dose is 5 g (1 scoop), add in a glass of water and stir.

Warning:

A food supplement is not a substitute for a balanced, varied diet and a healthy lifestyle. The recommended daily dosage must not be exceeded. Keep out of reach of children! We do not recommend pregnant women and nursing mothers to consume the product.

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Key Ingredients

Magnesium + B-complex – a food supplement with sweetener.

Ingredients: magnesium citrate, inulin, orange flavour (3 %), stabilizer: cellulose, B-complex mix (Thiaminmononitrate, Riboflavine, Pyridoxine hydrochloride, Cyanocobalamin, Folic acid, Calcium-D-pantothenate, Nicotine amid), sweetener: steviol glycosides from stevia.

Nutritional Value
per dosage (5 g) NRV %
Magnesium 375 mg 100 %
Vitamin B1 1,1 mg 100 %
Vitamin B2 1,4 mg 100 %
Vitamin B6 1,4 mg 100 %
Vitamin B12 2,5 μg 100 %
Folic acid 200 μg 100 %
Pantothenic acid 6 mg 100 %
Niacin 16 mg 100 %

* NRV = Nutritional Reference Value

Certifications
Why Independent Testing Is Essential - At Nature’s Finest, we believe that wellness starts with trust. Here’s what our testing covers:
  • Ingredient Precision: We verify that the nutrients listed on our labels are present in the exact amounts promised.
  • Purity & Cleanliness: Each product is screened for substances such as heavy metals (including mercury, lead, and arsenic), common allergens (like soy, dairy, nuts, and gluten), and microbial threats like E. coli and salmonella.
  • Nutrient Verification: We confirm that both macronutrients and micronutrients are present and potent.
Explore our IFS Food Standard certification—the highest level of quality assurance in the industry—and see why Nature’s Finest stands above the rest. View our certification here.
£9.79
-0%
Subscription
One-time purchase

Switch to subscription and save
For just you get the same. A simple way to enjoy the best prices. You can change or cancel your subscription at any time!

Add to cart ➝
Return guarantee icon 60-day money-back guarantee
Free delivery icon Free delivery over £50.00
Delivery in 2 business days
visa mastercard american_express paypal

Questions? Call us: 020 8089 0131

Customer Reviews

★ ★ ★ ★ ★
71
Verified reviews
4.9/5
Previous
★ ★ ★ ☆ ☆
Published 11 months ago by: iwona swiderska
Thank You ❤️
★ ★ ★ ★ ★
Published 10 months ago by: Barry Leadbetter
So far so good.
★ ★ ★ ★ ★
Published 12 months ago by: Neil Brookes
I find that the products I have used already have worked. Orders are easy to process and everything is explained in what is in the product. Thank you.
★ ★ ★ ★ ★
Published 11 months ago by: Paula James
Great product. Speedy delivery. Reasonable price.
★ ★ ★ ★ ★
Published 9 months ago by: Trevor M Aldersley
Well I think it is working, feeling great so will stick with it thank you
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The recommended daily dose is 5 g (1 scoop), add in a glass of water and stir.

Warning:

A food supplement is not a substitute for a balanced, varied diet and a healthy lifestyle. The recommended daily dosage must not be exceeded. Keep out of reach of children! We do not recommend pregnant women and nursing mothers to consume the product.

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Magnesium + B-complex – a food supplement with sweetener.

Ingredients: magnesium citrate, inulin, orange flavour (3 %), stabilizer: cellulose, B-complex mix (Thiaminmononitrate, Riboflavine, Pyridoxine hydrochloride, Cyanocobalamin, Folic acid, Calcium-D-pantothenate, Nicotine amid), sweetener: steviol glycosides from stevia.

per dosage (5 g) NRV %
Magnesium 375 mg 100 %
Vitamin B1 1,1 mg 100 %
Vitamin B2 1,4 mg 100 %
Vitamin B6 1,4 mg 100 %
Vitamin B12 2,5 μg 100 %
Folic acid 200 μg 100 %
Pantothenic acid 6 mg 100 %
Niacin 16 mg 100 %

* NRV = Nutritional Reference Value

Frequently asked questions from our users

How long can I take it?

Regular use is recommended. The recommended daily amount or dose should not be exceeded.

When is the best time to take it?

I recommend taking the product after dinner or before bedtime.

Can pregnant women and nursing mothers consume it?

Pregnant and lactating women are discouraged from use.

Is it suitable for vegans?

Yes, the product is suitable for vegans and vegetarians.

Can I take it alongside medication?

Food supplements are foods that are intended to supplement your normal diet, if you are taking any medication, please consult your personal doctor before taking any food supplement.

What can I do if I don't like the taste? And can I mix it with boiling water

If you don’t like the taste, you can mix it into juice, smoothies or dissolve it in more water. We do not recommend consuming this product in hot water as this may destroy the effect of the active ingredients and vitamins.

Can children consume it? From what age can I consume the product?

The product may be consumed by persons over 15 years of age.

Diabetics and other health conditions?

This product contains maltodextrin, which increases blood sugar levels and is therefore not recommended for diabetics and in case of associated conditions, a personal physician should be consulted.

Are there possible side effects?

The product is usually well tolerated and many users report no side effects. However, it is important to understand that each person reacts differently to dietary supplements. Consult a nutritionist or doctor before use, especially if you have any health problems or are taking medication.

Advice from our experts in addition to eating the product?

1. regular physical activity 2. balanced diet 3. quality sleep 4. adequate hydration

Is the product suitable for both women and men?

Yes, the product is suitable for women and men.

Is the product suitable for people with high blood pressure and thyroid problems?

This product is intended for use by everyone, but in the case of existing medical conditions or medication, we recommend that individuals consult their personal physician before use.

Product not well mixed, lumps, contents floating on water?

Clumps are a perfectly normal occurrence in a powdered product that absorbs moisture. Floating contents are insoluble plants which do not affect the quality of the product. If the contents do not dissolve in water and/or bother you, you can remove them and they can also be eaten.

Why choose Nature’s Finest?

15

Years of tradition

400+

Unique products”

50+

Patented active ingredients

3mil+

Satisfied customers

Nature

We believe in the perfection of nature. Our commitment extends to the responsible sourcing of raw materials, including sustainability, ethics, and fair business practices. To reduce our carbon footprint, we use environmentally friendly packaging.

The effectiveness of our products is confirmed by verifiable and reproducible studies and research. All of our products are tested in independent laboratories, as our goal is to offer our customers only the highest-quality and most effective products for their money.

 
 

Nature offers effective solutions to many of the challenges we face. Our experienced development team harnesses and combines these exceptional substances in our products so the body can make optimal use of them. The active ingredients in our products are included in proven effective amounts—not just in small, negligible quantities.

We test our products through various user studies and trials to ensure their safety and effectiveness. We always listen closely to our customers’ feedback and take their opinions, reviews, and suggestions into account to ensure our products are truly tailored to their needs.

Meet our product development experts

We are proud that our team consists exclusively of top experts in nutrition and natural formulations, ensuring the development and outstanding quality of our products. With great dedication, they conduct studies and research and work closely with external laboratories, testing institutes, and other specialists to guarantee the highest quality and safety of our products.

Thanks to their extensive experience and industry expertise, our experts are committed to providing Nutrisslim customers with the most innovative products and to maintaining our status as one of the leading companies in the field of nutrition and dietary supplements.

Meta Bizjak

M.Sc. in Nutritional Engineering

Pia Fistrovič

Food and Nutrition Engineer

#WeAreNature

»Committed to bringing the most natural products to your home«

For over 15 years, Nature’s Finest has been dedicated to providing natural solutions for everyone who wants to overcome lifestyle-related challenges and discomforts. We use only 100% natural ingredients, produced traditionally, without additives or unnecessary processing. Whenever possible, we choose organically grown ingredients certified under SI-EKO-001.

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