---
product_id: 17590157
title: "Klaire Labs SFI Health Active B Complex - Methylated Vitamin B Complex with Methyl Folate, B12, B6 and More - Support Healthy Energy, Brain, Liver & Nerve Function (60 Capsules)"
brand: "sfi health"
price: "€ 64.10"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/17590157-klaire-labs-sfi-health-active-b-complex-methylated-vitamin-b
store_origin: NL
region: Netherlands
---

# High-potency energy boost Vegan & hypoallergenic purity Methylated B vitamins for brain & nerve support Klaire Labs SFI Health Active B Complex - Methylated Vitamin B Complex with Methyl Folate, B12, B6 and More - Support Healthy Energy, Brain, Liver & Nerve Function (60 Capsules)

**Brand:** sfi health
**Price:** € 64.10
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your energy and brainpower with every capsule!

## Quick Answers

- **What is this?** Klaire Labs SFI Health Active B Complex - Methylated Vitamin B Complex with Methyl Folate, B12, B6 and More - Support Healthy Energy, Brain, Liver & Nerve Function (60 Capsules) by sfi health
- **How much does it cost?** € 64.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/17590157-klaire-labs-sfi-health-active-b-complex-methylated-vitamin-b)

## Best For

- sfi health enthusiasts

## Why This Product

- Trusted sfi health brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean, Pure Formula:** Free from GMOs, gluten, soy, nuts, and common allergens—perfect for the mindful professional.
- • **Optimized Cellular Energy:** Fuel your day with methylated B vitamins that convert food into lasting energy at the cellular level.
- • **Cognitive & Nerve Vitality:** Active B6, B12, and methyl folate support sharp brain function and healthy nerve signaling.
- • **Bioavailable Methylated Nutrients:** Coenzyme forms ensure maximum absorption and immediate usability by your body.
- • **Trusted Practitioner-Backed Quality:** From Klaire Labs, now SFI Health—trusted by healthcare experts for safety and efficacy.

## Overview

Klaire Labs SFI Health Active B Complex delivers a high-potency, methylated vitamin B formula featuring bioavailable coenzyme forms of B6, B12, and methyl folate. Designed to support cellular energy production, cognitive function, liver, and nerve health, this vegan and hypoallergenic supplement is free from common allergens and GMOs. Trusted by healthcare practitioners, it ensures optimal absorption and efficacy for busy professionals seeking a clean, effective energy and brain health boost.

## Description

Klaire Labs SFI Health Active B Complex - Methylated Vitamin B Complex with Methyl Folate, B12, B6 and More - Support Healthy Energy, Brain, Liver & Nerve Function (60 Capsules)

## Features

- Bioavailable Vitamin B Complex - This high-potency formula delivers methyl folate alongside a full range of essential B vitamins in their activated, coenzyme forms. This means they are directly usable by the body, and optimized for absorption.*
- Supports Energy and Metabolic Health - B vitamins play a crucial role in converting food into energy at the cellular level. By fueling this process, this methylated B complex can help support healthy energy.*
- Promote Healthy Cognition - With active forms of Vitamin B6, B12, and folate (as Metafolin) this complex can help support healthy brain, liver, and nerve cell function.*
- Vegan & Hypoallergenic - This active b complex is made without GMOs, milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, and sesame.
- Klaire Labs is Now SFI Health - Klaire Labs has been part of the SFI Health family for many years leading the way in efficacy, safety, quality, and trusted by healthcare practitioners. While we might be changing the way things look, rest assured that our formulations remain the same.

## Product Details

- **Brand:** SFI Health
- **Item Form:** Capsule
- **Primary Supplement Type:** Vitamin-b
- **Diet Type:** Vegetarian
- **Flavor:** Unflavored

## Images

![Klaire Labs SFI Health Active B Complex - Methylated Vitamin B Complex with Methyl Folate, B12, B6 and More - Support Healthy Energy, Brain, Liver & Nerve Function (60 Capsules) - Image 1](https://m.media-amazon.com/images/I/7130mbh0itL.jpg)

## Questions & Answers

**Q: question for the seller - Is prothera and klaire labs the same?  The photoshows one and the label is another**
A: I cannot answer that one.

**Q: The prothera and klaire labs % daily value is different. kl is much higher. what did they add?**
A: The new FDA labeling requirements include something called "Dietary Folate Equivalent" (DFE) - the same amount of "Active" folate is labeled at the higher "DFE" amount - the amount has not changed, the FDA labeling requirements have changed. This reflects the fact that "Active" folate is more bioavailable than dietary folate.

**Q: Is the prothera or Klaire labs?   Label is one and picture is the other.**
A: I assume it’s pro theta lab but honestly I don’t know.

**Q: does anyone know what these b-vitamins are made of ?**
A: Check the nutrition label on Amazon. It has a full list of ingredients.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by D***Y on July 1, 2025*

Seems perfect!

### ⭐⭐⭐⭐⭐ Know your vitamins!
*by D***E on March 18, 2022*

This is the best b complex I have ever taken. The ingredients are top notch and it doesn’t hurt my stomach like most others. I saw some reviews regarding this product and allergic reactions. Please know what you are taking as this product contains niacin. Niacin can give you a “flush” and if you are deficient as most people are even the non flushing form, which this product has as well, can make you flush. A flush can make you just feel a little warm or it can make you feel itchy and hot. This is nothing to be scared of as it only lasts a few minutes and is good for your body to do. I noticed myself if I did not eat with it, the flush was stronger and the directions say to eat something with it. I look forward to trying more products from this company.

### ⭐⭐⭐⭐⭐ A little pricey but labs prove I'm metabolizing it well!
*by A***A on December 27, 2022*

I have had this brand of B complex recommended for its ability to be absorbed even with mthfr (gene mutation). I have been taking it off and on for multiple years at this point and I'm still just as happy with it. I went off of it for a few months last year and my labs came back great! They were in the high normal range! Which is a huge relief that I'm metabolizing these vitamins so well that my body isn't going deficienct even during short breaks in taking them. They're a little pricey when you have other vitamins in your regimine...but they're worth it and I'll continue taking them. I know my body is happy when I do.

## Frequently Bought Together

- Klaire Labs SFI Health Active B Complex - Methylated Vitamin B Complex with Methyl Folate, B12, B6 and More - Support Healthy Energy, Brain, Liver & Nerve Function (60 Capsules)
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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-25*