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Delivery within 2 work days
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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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B-Complex

Food supplement with sweetener
Star Star Star Star Star
4.92 / 5
Verified 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 has 4.7 million customers worldwide.
Neto 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.

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.

Key Ingredients

B-Complex – food supplement with sweetener.

Ingredients: Inulin, 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

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.
£8.59
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One-time purchase

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Delivery in 2 business days
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Questions? Call us: 020 8089 0131

Reviews

4.92
★ ★ ★ ★ ★
Based on 91 reviews
5★
87
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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 it works

star star star star star 4.9 / 5
Olivia
star star star star star 5/5

Convenient and tasty way to get extra vitamins!

Olivia
Jessica
star star star star star 5/5

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

Jessica
Sarah
star star star star star 5/5

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.

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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

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.

B-Complex

B-Complex

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

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

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

What ingredients does it contain?

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

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

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.

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Next

B-Complex

Food supplement with sweetener
Star Star Star Star Star
4.92 / 5
Verified 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 has 4.7 million customers worldwide.
Neto 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.

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.

Key Ingredients

B-Complex – food supplement with sweetener.

Ingredients: Inulin, 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

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.
£8.59
-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

★ ★ ★ ★ ★
91
Verified reviews
4.9/5
Previous
★ ★ ★ ★ ★
Published 2 years ago by: Jurate S.
Very good service and communication.Great products.
★ ★ ★ ☆ ☆
Published 12 months ago by: Trevor Lloyd-Jones
Great
★ ★ ★ ★ ☆
Published 9 months ago by: Tristan Cooke
Easy to place order and informative
★ ★ ★ ★ ☆
Published 9 months ago by: Janet Birch
Brilliant well done
★ ★ ★ ★ ★
Published 10 months ago by: Pennie Mirembe #14
Good products
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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: Inulin, 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

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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