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Delivery within 2 work days
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Trusted by over 3M subscribers
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
Trusted by over 3M subscribers
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
Trusted by over 3M subscribers
Delivery within 2 work days
Free shipping over £50.00
60-day refund policy
Trusted by over 3M subscribers
020 8089 0131

Free consulting

-10%
Maja
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
4.92 / 5
71 Verified reviews

Formula with magnesium and B-complex for less fatigue and exhaustion1

  • Powerful formula for optimal results
  • Covers your daily needs of magnesium and B vitamins
  • Contributes to the reduction of tiredness and fatigue¹˒²
  • Contributes to normal muscle function¹
  • Contributes to electrolyte balance¹
  • Contributes to normal energy-yielding metabolism¹˒²
  • Contributes to normal psychological function¹˒²
  • No clumping, no residue, mixes completely every time
  • Easy-to-mix powder for convenient daily use
Nature’s Finest ima že več kot 4,7 milijona strank po vsem svetu!
Net 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.

Warnings:

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, maltodextrin, natural orange aroma (3%), stabilizer: cellulose powder, B-complex (B1, B2, B6, B12, folic acid, pantothenic acid, niacin), 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

Certification +

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.

Maja
5 / 5

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

£8.81 £9.79
Subscribe & save
One-time purchase

Switch to subscription and save £0.42
You can get the same for just £8.39. A convenient way to enjoy the best prices. You can change or cancel your subscription at any time!

Money-back guarantee for 60 days
Free shipping for orders from £50.00
Delivery within 2 working days
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Questions? Call us: 020 8089 0131

Reviews

4.9
Based on 71 reviews
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Everything you need to know:

I’m healthy, is this combination still a good choice for me? +

Yes, even healthy individuals can benefit from high-quality magnesium and b-complex supplementation. Especially if you might not be getting enough of these nutrients in your diet.

This product is particularly recommended when managing high-stress workloads, for students during exam periods, athletes recovering from intense training, and anyone whose sleep is affected by physical tension and mental stress.

When your body and mind are exhausted, this formula helps reduce fatigue and tiredness.1

Why combine magnesium with B-complex? +

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. Together, they address both the physical tension and fatigue that come with demanding lifestyles.

How can this help me during stressful periods like exams or high-pressure work? +

Both magnesium and niacin contribute to normal psychological function. Magnesium also contributes to normal functioning of the nervous system.

Additionally, both magnesium and riboflavin contribute to the reduction of tiredness and fatigue, which is exactly what you need when mental demands are high.

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.

The B-complex enhances this by contributing to normal energy-yielding metabolism ― specifically, riboflavin contributes to normal energy-yielding metabolism and niacin contributes to normal energy-yielding metabolism.

Vitamin B6 contributes to normal protein and glycogen metabolism.

Our customers also confirm that it works

4.9 / 5

Anna
starstarstarstarstar5/5

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
starstarstarstarstar5/5

I take this before bed when I'm stressed and it helps my muscles relax. I wake up less tired and more focused.

Maya
Nicole
starstarstarstarstar5/5

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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Support your body and reduce fatigue¹ with magnesium and B-complex

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

Magnesium contributes to normal muscle function. When combined with niacin that contributes to the reduction of tiredness and fatigue, you get excellent support for both physical and mental wellbeing.

Do you need support for intense mental demands?

Both magnesium and vitamin B12 contribute to normal psychological function and normal functioning of the nervous system. This combination supports your mental resilience during demanding periods.

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.

Do you struggle with sleep due to physical tension?

Magnesium contributes to normal muscle function and normal psychological function, helping your body and mind transition into rest mode more effectively.

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

Unless your diet is excellent, you’re likely not covering your daily magnesium needs. With 375 mg of magnesium per serving in this formula, you cover your daily requirement for magnesium and for B-complex.

  • Magnesium citrate for superior absorption

We use magnesium citrate, a highly bioavailable form that’s gentle on the stomach and efficiently absorbed. Combined with our complete B-complex, you get maximum nutritional impact.

  • Natural orange flavour

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

Why powder form works better

  • Faster absorption
    Liquid supplements allow for rapid absorption of both magnesium and B vitamins, meaning you can see results more quickly than with tablets.
  • Flexible timing
    Take it post-workout for recovery, during stressful periods for resilience, or before bed. The powder format adapts to your needs.
  • Complete dissolution
    Magnesium supplements are notorious for poor mixability. Our advanced formula dissolves completely every time, ensuring you get the full therapeutic dose.
  • Easy integration
    Add to your post-workout shake, evening routine, or study break. One simple step addresses both physical tension and mental fatigue.
  • Consistency builds results
    The easier and more pleasant it is to take, the more consistently you’ll use it. And with stress recovery, consistency is key for building resilience.

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
  • You get complete stress recovery nutrition in one simple formula

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 postpone nutrition that addresses both physical and mental demands

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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Next
Traceability of our raw materials

Discover the nature in our supplements! We carefully select and monitor every ingredient to ensure optimal performance, backed by proven scientific effectiveness. Our commitment to transparent traceability guarantees the integrity and excellence of all the elements in our products. Our products are IFS Standard certified under registration no.: 00063/0 and ECO certificat under certified no.: EPR-26420/22-1.

60-days-Money-back-Badge-Landing_EN-white-300x300-1.png

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 and we will refund your money.

-10%
Magnesium + B-complex

Magnesium + B-complex

Magnesium citrate with complete B-complex

  • Contributes to the reduction of tiredness and fatigue¹˒²
  • Contributes to normal muscle function¹
  • Contributes to electrolyte balance¹
  • Contributes to normal energy-yielding metabolism¹˒²
  • Contributes to normal psychological function¹˒²
  • Contributes to normal functioning of the nervous system¹˒²
  • Perfect for students, athletes, and high-stress professionals

Frequently Asked Questions from Our Users

FAQ Icon

How and why does it work?

Our Magnesium + B-Complex is a dual formula for physical and mental support: It provides magnesium citrate for muscle function, electrolyte balance and nervous system support, combined with Riboflavin for energy-yielding metabolism and psychological function.

FAQ Icon

Who is it for?

For students, parents and workers during demanding periods, active people needing muscle and energy support1, anyone dealing with fatigue1, and anyone who needs to support their body with magnesium and B vitamins.

FAQ Icon

What does it taste like?

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

FAQ Icon

What ingredients does it contain?

Magnesium citrate, inulin, B-complex mix.

FAQ Icon

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 Icon

What if I don't like it?

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

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-10%
Maja
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
4.92 / 5
71 Verified reviews

Formula with magnesium and B-complex for less fatigue and exhaustion1

  • Powerful formula for optimal results
  • Covers your daily needs of magnesium and B vitamins
  • Contributes to the reduction of tiredness and fatigue¹˒²
  • Contributes to normal muscle function¹
  • Contributes to electrolyte balance¹
  • Contributes to normal energy-yielding metabolism¹˒²
  • Contributes to normal psychological function¹˒²
  • No clumping, no residue, mixes completely every time
  • Easy-to-mix powder for convenient daily use
Nature’s Finest ima že več kot 4,7 milijona strank po vsem svetu!
Net 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.

Warnings:

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, maltodextrin, natural orange aroma (3%), stabilizer: cellulose powder, B-complex (B1, B2, B6, B12, folic acid, pantothenic acid, niacin), 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

Certification +

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.

Maja
5 / 5

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

£8.81 £9.79
Subscribe & save
One-time purchase

Switch to subscription and save £0.42
You can get the same for just £8.39. A convenient way to enjoy the best prices. You can change or cancel your subscription at any time!

Money-back guarantee for 60 days
Free shipping for orders from £50.00
Delivery within 2 working days
visa
mastercard
american_express
paypal

Questions? Call us: 020 8089 0131

Customer reviews

There are no reviews yet for this product. Be the first to review it!

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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, maltodextrin, natural orange aroma (3%), stabilizer: cellulose powder, B-complex (B1, B2, B6, B12, folic acid, pantothenic acid, niacin), 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

Customer Reviews

There are no reviews yet.

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

Natural

We believe in the perfection of nature. Our commitment extends to responsible sourcing of raw materials, including sustainability, ethics, and fair business principles. We prioritize eco-friendly packaging to reduce our carbon footprint.

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

Nature offers effective solutions for many challenges we face. Our experienced development team uses and combines these exceptional substances in our products so that the body can best utilize them. Active ingredients in our products are present in proven effective amounts, not just in small and negligible percentages.

Our products are tested through various user studies and trials that ensure their safety and effectiveness. We always listen carefully to the feedback from our customers and consider their opinions, criticisms, and suggestions to ensure that our products are truly tailored to their needs.

Meet our development experts

We are proud to have only the best experts in the field of nutrition and food supplements on our team, who ensure the development and exceptional quality of our products. With outstanding dedication, they lead studies and research and collaborate with external laboratories, inspection bodies, and other experts to ensure the highest quality and safety of our products.

With rich experience and professional knowledge of the industry, our experts strive to provide Nutrisslim customers with the most innovative products, thus maintaining its status as one of the leading companies in the field of nutrition and food supplements.

Meta Bizjak

M.Sc. Nutrition Engineering

Pia Fistrovič

Food and Nutrition Engineer

#WeAreNature

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

For more than 15 years, Nature’s Finest has been dedicated to offering natural solutions for those who wish to overcome challenges and discomforts through a lifestyle. We use only 100% natural ingredients, traditionally grown without additives or unnecessary processing. Whenever possible, we use ingredients from organic farming, supported by the SI-EKO-001 certificate.

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