







⚡ Unlock your energy potential with every capsule!
Doctor's Best Fully Active B Complex delivers a potent, bioavailable blend of all eight essential B vitamins, including methylated B12 and Quatrefolic folate, designed to support energy production, cellular health, nerve function, and mood. This vegan, non-GMO, gluten- and soy-free formula is crafted for optimal absorption and sustained vitality, making it an essential daily supplement for busy professionals seeking natural energy and cognitive support.



















| ASIN | B07MPZFTF7 |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #18,097 in Health & Household ( See Top 100 in Health & Household ) #55 in Vitamin B-Complex Supplements |
| Brand Name | Doctor's BEST |
| Color | No Color |
| Customer Reviews | 4.6 out of 5 stars 1,366 Reviews |
| Diet Type | Vegan |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00753950005013 |
| Item Dimensions | 2.69 x 2.09 x 2.69 inches |
| Item Form | Capsule |
| Item Height | 2.69 inches |
| Item Nype Name | Vitamin B Complex |
| Item Weight | 0.61 Grams |
| Manufacturer | Doctor’s Best, Inc |
| Model Name | Doctor ' S Best Fully Active Nongmo Gluten Free Vegan Count |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin-b |
| Product Benefits | Energy Management |
| Special Ingredients | Non-GMO, Gluten Free, Soy Free, Vegan |
| Specific Uses For Product | Immune Support, Skin |
| UPC | 753950005013 |
| Unit Count | 60 Count |
J**N
Very good w/o negative side effects
As a plant based eater, I have taken a vegan B12 supplement for years. Recently, I ran out and was “too busy” to order more. After a couple months, I noticed having low energy especially in the afternoons and then started having heart palpitations. I went to the doctor to be safe, and confirmed that everything was good except my B12 was on the bottom end of the “normal range.” I ordered this B complex, and within less than 2 weeks of taking it daily, the palpitations were gone and energy is coming back. Lesson learned. This is a great oral supplement and seems to be very effective without any negative side effects.
P**5
Best B complex
I have tried many others and this complex is not only the most complete but it's a great value. B vitamins are so essential for good health and help with energy. I take mine mid -day with a snack to give me an energy boost. It's better than any energy drink! My hair has also grown in better with less Grey. Overall, if you are looking for a good quality B complex, I definitely recommend this!
C**E
Methylating B complex that works
If you have a a defective MTHFR gene or suspect so give the product a try. You will see a positive difference. If you cannot methylate folic acid folate or cyancobalamin, Welcome. To your new world.
S**C
Good Product, Have Used for Years
UPDATE: Successfully rec'd the correct supplement today! New bottle doesn't have the sticker label on it so someone at Amazon was listening. I've been using the Fully Active B Complex for awhile now. It's a good product, works for what I need it for. Unfortunately today I received Nattokinase with a Fully Active B Complex label. As we can't return nor get a refund, finally got thru to customer service to send me another bottle. Issue is...if the wrong label is on more bottles, I (and others) will be out of luck. If the correct bottle arrives, I'll increase the stars.
J**M
Better than Redbull
Feel definitely better on the day I have this. I love this!!!
C**E
Excellent B Vitamins
After reading the reviews some people are claiming to have a bad reaction to theses B- vitamins and that they cannot take these any longer. This is a Niacin flush and is a good side effect of taking the right niacin. Vitamin B3 or niacin is a vitamin that doctors will often prescribe to decrease your cholesterol. The vitamin B-3 in these vitamins will often cause the flushing that will cause skin redness with a burning, prickly sensation. This is harmless and is actually very good for your body. This flush increases micro circulation. Look up the health benefits of micro circulation.
B**Y
Watch out for the niacin flush
The niacin will flush the heck out of you about 20 mins after you take it. I thought I was having a heart attack at first until I realized that it was happening every time I took my B complex
T**L
Good value
My husband has to take these. Glad Amazon sells them!Good value for money.
Trustpilot
3 days ago
1 month ago