---
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: "$U3241"
currency: UYU
in_stock: true
reviews_count: 8
category: "Sfi Health"
url: https://www.desertcart.uy/products/17590157-klaire-labs-sfi-health-active-b-complex-methylated-vitamin-b
store_origin: UY
region: Uruguay
---

# High-potency energy boost Vegan & hypoallergenic formula 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:** $U3241
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your energy, brain, and wellness game 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?** $U3241 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/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 & Allergy-Safe:** Free from common allergens and GMOs, perfect for sensitive, health-conscious professionals.
- • **Cellular Energy Ignited:** Optimized methylated B vitamins fuel your metabolism at the cellular level for sustained vitality.
- • **Brain & Nerve Powerhouse:** Active B6, B12, and methyl folate support cognitive clarity, nerve health, and liver function.
- • **Clinician-Trusted Quality:** Formulated by SFI Health, a leader in efficacy and safety, trusted by healthcare practitioners worldwide.
- • **Absorption-Optimized Formula:** Coenzyme forms ensure immediate bioavailability—no waiting, just results you can feel fast.

## Overview

Klaire Labs SFI Health Active B Complex delivers a methylated, bioavailable blend of essential B vitamins including methyl folate, B12, and B6, designed to support healthy energy metabolism, cognitive function, liver, and nerve health. This vegan, hypoallergenic formula is free from major allergens and GMOs, ensuring clean, efficient absorption trusted by healthcare professionals. Ideal for adults seeking a potent, fast-acting vitamin B complex to power their busy, health-focused lifestyles.

## Description

Buy 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) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Life saver! I feel so much better. - These are of great quality! My alergist recommend this specific kind because it's easier to absorb. I have celiac diseaseand have been trying to find supplements that work for me. These work amazingly! I can feel the difference with in weeks of starting them. I had to stop recently due to financial issues and my energy decreased, I started putting on weight despite not eating much. Felt over all blah. Within a couple weeks my energy came back, that yucky all over feeling went away, my mood is better too. I don't get upset stomach with these either. I got them with all other types of B vitamins taken and no nasty aftertaste. Overall value is worth it for the health benefits.
Review: This is high quality stuff... - Seems to be quite a few negative reviews about allergic reactions. I believe what many people are experiencing is the Niacin Flush that occurs after ingesting high doses of Niacin (vitamin B3). This is a known reaction that is perfectly harmless caused by the Niacin expanding your veins thus allowing more blood to flow. Verify this yourself and google Niacin flush. I was not aware of this the first time I took a capsule and I to thought I was having a reaction. Over time the reaction is minimized and taking the capsule with food can make it completely unnoticeable. However, I will say the reaction has given me complete confidence that the ingredients on the label are what is in the capsules. The vitamins in this capsule are different than what you find in most of the alternatives. These are all highly useable by our bodies meaning our bodies don't have to break them down further to absorb them hence why these cost more. I am on my second bottle.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TYW4FXS |
| ASIN  | B00TYW4FXS |
| Age Range Description | Adult |
| Allergen Information | Egg Free, Fish Free, Milk Free, Peanut Free, Shellfish Free, Tree Nut Free, Wheat Free |
| Best Sellers Rank | #53,045 in Health & Household ( See Top 100 in Health & Household ) #145 in Vitamin B-Complex Supplements |
| Brand Name | SFI Health |
| Customer Reviews | 4.6 4.6 out of 5 stars (337) |
| Date First Available  | February 24, 2015 |
| Diet Type | Vegetarian |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 3 x 3 x 3 inches |
| Item Form | Capsule |
| Item model number  | ABC |
| Manufacturer | SFI Health |
| Manufacturer  | SFI Health |
| Model Name | Active B Complex |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin-b |
| Product Benefits | Hypoallergenic |
| Product Dimensions  | 3 x 3 x 3 inches; 1.45 ounces |
| Specific Uses For Product | Metabolism,Energy |
| UPC | 772195311307 828054001848 |
| Unit Count | 60 Count |

## Product Details

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

## 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

### ⭐⭐⭐⭐⭐ Life saver! I feel so much better.
*by R***S on January 17, 2026*

These are of great quality! My alergist recommend this specific kind because it's easier to absorb. I have celiac diseaseand have been trying to find supplements that work for me. These work amazingly! I can feel the difference with in weeks of starting them. I had to stop recently due to financial issues and my energy decreased, I started putting on weight despite not eating much. Felt over all blah. Within a couple weeks my energy came back, that yucky all over feeling went away, my mood is better too. I don't get upset stomach with these either. I got them with all other types of B vitamins taken and no nasty aftertaste. Overall value is worth it for the health benefits.

### ⭐⭐⭐⭐⭐ This is high quality stuff...
*by R***N on January 22, 2021*

Seems to be quite a few negative reviews about allergic reactions. I believe what many people are experiencing is the Niacin Flush that occurs after ingesting high doses of Niacin (vitamin B3). This is a known reaction that is perfectly harmless caused by the Niacin expanding your veins thus allowing more blood to flow. Verify this yourself and google Niacin flush. I was not aware of this the first time I took a capsule and I to thought I was having a reaction. Over time the reaction is minimized and taking the capsule with food can make it completely unnoticeable. However, I will say the reaction has given me complete confidence that the ingredients on the label are what is in the capsules. The vitamins in this capsule are different than what you find in most of the alternatives. These are all highly useable by our bodies meaning our bodies don't have to break them down further to absorb them hence why these cost more. I am on my second bottle.

### ⭐⭐⭐⭐⭐ 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.

## 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 Uruguay*
*Store origin: UY*
*Last updated: 2026-03-09*