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B-Complex

Food supplement with sweetener
4.92 / 5
91 Verified reviews

100% NRV of B vitamins per dosage in powdered form for optimal bioavailability

  • 100% recommended daily amount
  • All 7 B vitamins
  • Vitamins B2 contributes to the reduction of tiredness and fatigue
  • Vitamins B1  contributes to the normal functioning of the nervous system
  • Vitamins B9  contributes to normal psychological function
  • No clumping, no residue, mixes completely every time
  • Easy-to-mix powder for convenient daily use
  • Suitable for vegans
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 amount is 5 g (1 scoop). Mix in a glass of water and consume as soon as the powder dissolves.

Warnings:

A food supplement is not a substitute for a balanced and varied diet. The recommended daily dosage must not be exceeded. Keep out of reach of children! Pregnant and breastfeeding mothers are advised not 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 +

B-Complex – food supplement with sweetener.

Ingredients: Maltodextrin, erythritol, natural orange flavour (5%), B-complex mixture (B1, B2, B6, B12, folic acid, pantothenic acid, niacin), stabilizer: cellulose powder, Sweetener: steviol glycosides from stevia.

Nutritional Value +
Per serving (5 g)
Vitamin B1 1,1 mg (100 % NRV*)
Vitamin B2 1,4 mg (100 % NRV*)
Vitamin B6 1,4 mg (100 % NRV*)
Vitamin B12 2,5 µg (100 % NRV*)
Folic acid 200 µg (100 % NRV*)
Pantothenic acid 6 mg (100 % NRV*)
Niacin 16 mg (100 % NRV*)

* 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.

£8.59
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One-time purchase

Switch to subscription and save £0.40
You can get the same for just £8.19. 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 91 reviews
5 ★
87
4 ★
3
3 ★
0
2 ★
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1 ★
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Everything you need to know:

Why should I choose complete B-complex instead of individual B vitamins? +

B vitamins work synergistically as a team. Taking a complete B-complex ensures that all eight essential B vitamins function together harmoniously.

Individual B vitamins are most effective when taken together as part of a complete B-complex.

Choose our B-complex to cover 100% of your daily needs.

Can B-complex vitamins reduce tiredness and boost energy? +

Yes! Vitamins B2, B3, B5, B6, and B12 contribute to the reduction of tiredness and fatigue.

Is this B-complex good for vegans and vegetarians? +

Absolutely. Our formula is 100% vegan and vegetarian. If you follow a plant-based lifestyle, you know some B vitamins are harder to get from food alone — especially B12. This powder gives you all the essentials in one scoop, so you can cover all your daily needs.

Our customers also confirm that it works

4.9 / 5

Olivia
starstarstarstarstar5/5

Convenient and tasty way to get extra vitamins!

Olivia
Jessica
starstarstarstarstar5/5

This b-complex drink is really something special! I especially like that I don’t need to swallow tablets.

Jessica
Sarah
starstarstarstarstar5/5

My first solution when I feel tired. I feel so much better after it.

Sarah
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8 B vitamins in 1 formula

Formulated to deliver all essential B vitamins in a single formula

Choose our B-Complex

You know B vitamins are essential. Here’s why our B-complex formula delivers superior results:

  • Complete formula

Our B-complex provides 100% NRV of 8 essential B vitamins in one convenient serving. This means you are covering your daily needs for B vitamins.

  • Balanced B vitamin ratios

Rather than random amounts, our formula provides balanced ratios of 8 B vitamins (B1, B2, B6, B12, folic acid, pantothenic acid, niacin) that work together.

  • Support your nervous system and psychological function

Vitamins B1, B2, B5, B6, and B12 contribute to the normal functioning of the nervous system and Vitamin B6 also contributes to regulation of hormonal activity.

  • Perfect for busy, demanding lifestyles

This is ideal for students, athletes, and anyone with high energy demands, because vitamins B2, B3, B5, B6, and B12 help reduce tiredness and fatigue, while B1, B6, B9, and B12 support normal psychological function – helping you stay energized and focused throughout the day.

  • Perfect for vegans and vegetarians

If you don’t eat animal products, it can be tricky to get enough of certain B vitamins. That’s why so many vegans and vegetarians turn to a complete B-complex. Ours combines eight essential B vitamins in one formula that fits perfectly with a plant-based lifestyle.

  • Delicious natural orange flavour

Our B-complex features natural orange flavour (5%), creating a refreshing citrus drink that makes daily B vitamin intake enjoyable.

Why powder form matters

  • Better absorption
    Liquid supplements can be absorbed more readily than compressed tablets, meaning your body can utilize the B vitamins effectively.
  • Dosage flexibility
    Start with half a serving if needed, or adjust based on individual requirements.
  • Integrate it easily into your life
    Add to your morning smoothie, post-workout drink, or evening routine. Make B-complex supplementation work for your lifestyle.
  • Easy to mix and dissolve
    We’ve all bought fizzy tablets that clump, stick to the glass, or leave gritty residue. Our formula dissolves instantly and completely, making your daily B-complex intake pleasant.
  • Consistency is key
    The easier it is to take, the more likely you are to take it consistently. And with supplements, consistency is everything.

Start taking your B-complex today

If you start with B-complex TODAY:

  • You will benefit from vitamins B2, B3, B5, B6, and B12, which contribute to the reduction of tiredness and fatigue
  • You will support the normal functioning of your nervous system with vitamins B1, B2, B5, B6, and B12
  • You will maintain normal psychological function with vitamins B1, B6, B9, and B12

If you start taking B-complex later:

  • You continue to rely on potentially inadequate B vitamin intake
  • You delay extra nervous and immune system support
  • You delay optimizing your psychological function and hormonal activity

Made from quality ingredients

B-complex

1. 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

2. Orange flavour

The orange flavour adds freshness and great taste.

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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.

High quality ingredients

Carefully chosen clean formulation

Eco-Friendly Packaging

Less waste, more care for the planet

Purity & Safety Guaranteed

Third-party tested for 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 and we will refund your money.

B-Complex

B-Complex

starstarstarstarhalf star4,9 / 5 check iconReviews (91)
  • All 7 vitamins
  • Covers 100% of daily requirement for B-complex
  • Vitamins B2, B3, B5, B6, and B12 contribute to the reduction of tiredness and fatigue
  • Vitamins B1, B2, B5, B6, and B12 contribute to the normal functioning of the nervous system
  • Vitamins B1, B6, B9, and B12 contribute to normal psychological function
  • Powdered formula with no clumping or residue
  • Suitable for vegans

Frequently Asked Questions from Our Users

FAQ Icon

How and why does it work?

Our B-complex provides 100 % NRV of essential B vitamins, that are important for your nervous system, immune system, energy and more. In addition to their common function, each of the B vitamins has other important roles in your body.

FAQ Icon

Who is it for?

For vegans and vegetarians, for anyone dealing with fatigue or low energy, for students during demanding periods, and for active people who want to contribute to normal energy-yielding metabolism.

FAQ Icon

What ingredients does it contain?

B-complex blend (B1, B2, B6, B12, folic acid, pantothenic acid, niacin) and natural orange flavour.

When are the first results visible?

The vitamins work as soon as they are introduced into your system and you can expect to see noticeable results after just 14 days of regular use.

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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B-Complex

Food supplement with sweetener
4.92 / 5
91 Verified reviews

100% NRV of B vitamins per dosage in powdered form for optimal bioavailability

  • 100% recommended daily amount
  • All 7 B vitamins
  • Vitamins B2 contributes to the reduction of tiredness and fatigue
  • Vitamins B1  contributes to the normal functioning of the nervous system
  • Vitamins B9  contributes to normal psychological function
  • No clumping, no residue, mixes completely every time
  • Easy-to-mix powder for convenient daily use
  • Suitable for vegans
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 amount is 5 g (1 scoop). Mix in a glass of water and consume as soon as the powder dissolves.

Warnings:

A food supplement is not a substitute for a balanced and varied diet. The recommended daily dosage must not be exceeded. Keep out of reach of children! Pregnant and breastfeeding mothers are advised not 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 +

B-Complex – food supplement with sweetener.

Ingredients: Maltodextrin, erythritol, natural orange flavour (5%), B-complex mixture (B1, B2, B6, B12, folic acid, pantothenic acid, niacin), stabilizer: cellulose powder, Sweetener: steviol glycosides from stevia.

Nutritional Value +
Per serving (5 g)
Vitamin B1 1,1 mg (100 % NRV*)
Vitamin B2 1,4 mg (100 % NRV*)
Vitamin B6 1,4 mg (100 % NRV*)
Vitamin B12 2,5 µg (100 % NRV*)
Folic acid 200 µg (100 % NRV*)
Pantothenic acid 6 mg (100 % NRV*)
Niacin 16 mg (100 % NRV*)

* 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.

£8.59
Subscribe & save
One-time purchase

Switch to subscription and save £0.40
You can get the same for just £8.19. 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

91
reviews for this product
4.9/5
Posted 1 year ago by Jurate S.

Very good service and communication.Great products.

Read more

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The recommended daily amount is 5 g (1 scoop). Mix in a glass of water and consume as soon as the powder dissolves.

Warning:

A food supplement is not a substitute for a balanced and varied diet. The recommended daily dosage must not be exceeded. Keep out of reach of children! Pregnant and breastfeeding mothers are advised not 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.

B-Complex – food supplement with sweetener.

Ingredients: Maltodextrin, erythritol, natural orange flavour (5%), B-complex mixture (B1, B2, B6, B12, folic acid, pantothenic acid, niacin), stabilizer: cellulose powder, Sweetener: steviol glycosides from stevia.

Per serving (5 g)
Vitamin B1 1,1 mg (100 % NRV*)
Vitamin B2 1,4 mg (100 % NRV*)
Vitamin B6 1,4 mg (100 % NRV*)
Vitamin B12 2,5 µg (100 % NRV*)
Folic acid 200 µg (100 % NRV*)
Pantothenic acid 6 mg (100 % NRV*)
Niacin 16 mg (100 % NRV*)

* NRV = Nutritional Reference Value

Customer Reviews

  1. Jurate S. –

    Very good service and communication.Great products.

Frequently Asked Questions from Our Users

How long can I take it? Can I do the cure? +

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

When is the best time to take it? +

Any time of the day.

Can pregnant women and nursing mothers consume it? +

Pregnant women and breastfeeding mothers are discouraged from using it.

Is it suitable for vegans? +

Yes, the product is suitable for vegans and vegetarians.

Can I take it alongside medication? +

Dietary supplements are foods intended to supplement the normal diet, if you are taking any medication, please consult your personal physician before taking a dietary 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? +

The product contains maltodextrin, which increases blood sugar levels and is therefore not recommended for diabetics, and in case of associated diseases, we recommend consulting a personal physician.

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 food 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. Sufficient 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 powder 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 the 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.

Free consulting

020 8089 0131
Help and orders:
020 8089 0131
[email protected]

Monday – Friday 8 am – 4 pm

Copyright © 2025 Nutrisslim. All rights reserved. Privacy protection cookies.

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Free consulting

020 8089 0131
Help and orders:
020 8089 0131
[email protected]

Monday – Friday 8 am – 4 pm

Copyright © 2025 Nutrisslim. All rights reserved. Privacy protection cookies.