

⚡ Elevate your energy and brainpower with B12 that works as hard as you do!
Doctor's Best Fully Active B12 delivers 1500 mcg of methylcobalamin, the most bioavailable form of vitamin B12, designed to support energy production, healthy memory, mood, and circulation. This vegan, non-GMO, and gluten-free supplement ensures superior absorption and is trusted by thousands for daily cognitive and metabolic support.































| ASIN | B008NIHCZC |
| Best Sellers Rank | #8,183 in Health & Household ( See Top 100 in Health & Household ) #56 in Vitamin B12 Supplements #1,225 in Sales & Deals |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,162) |
| Date First Available | July 21, 2012 |
| Is Discontinued By Manufacturer | No |
| Item model number | DRB-00286 |
| Manufacturer | Doctor’s Best, Inc |
| Product Dimensions | 2.13 x 2.13 x 3.75 inches; 1.1 ounces |
N**K
Easy to take with clean ingredients
I have been taking this B12 supplement consistently, and it has been easy to incorporate into my routine. The tablets are simple to take, and I appreciate the vegan, non-GMO formulation and clear labeling. The bottle lasts a long time, which makes it a good value. While individual results can vary, this feels like a well made, straightforward option if you are looking for a fully active B12 supplement.
L**A
Great
This is a great B12 supplement. Easy to take, good quality, and I can definitely feel the difference in energy. Highly recommend for anyone who needs a reliable daily B12.
S**C
Works well for diabetic kitty and at a lower price than veterinary brand
This is my second purchase of this item. My diabetic cat benefits from a daily dose of B12 (Methylcobalamin) to prevent neuropathy in her hind legs. I was using the brand recommended by her vet, but it's very expensive and she hated the taste...would spit it out or not finish taking it. I found this and tried it. I mix it with Churu squeeze up treats and she scarfs it down. Works as well as the vet-recommended brand name, and it's much less expensive.
E**O
And very affordable
Great product
S**.
Great Product!
I felt the difference from day 1. It supports mood, and provides energy. One does feel better after taking it. Very easy to swallow. Thank you!
G**M
If you even *think* you may be low in b12 then get this
Being low in b12 can be very scary. I personally have had various deficiencies over the years and b12 deficiency has the worst symptoms. I don't want to go into too much detail but anyone experiencing mental issues should be supplementing this and don't be afraid to take a "therapeutic" dose. When I got these I immediately started taking 3 per day. I took a few days break bc I felt better and let me tell you not to do that. Be consistent. after about 10 days my brain begin to change and reality seemed more normal. Of course I am putting my family and friends on this. It's' too important to let anyone be deficient especially in these stressful times. Also note that stress depletes nutrients from your system as well as any illness. also, your liver requires b12 to help it not accumulate fat and to detox. Take care of yourselves.
S**H
Reliable brand
This is a good product. It has no after taste, it’s also easy to swallow. I had no gut issues or bowel issues while using. I noticed an energy spike and that’s a good thing.
S**Y
Great value
The capsules are so small so it is easy for anyone to swallow, the quality is great especially for the price! If I forget to take one my body will definitely remind me to. Great source of natural energy. No bad taste
S**E
Ok
R**E
Pas eu d'efficacité sur moi
A**A
I have just started using this Vitamin B12. So, I can see that it works. I feel much better, energy raised up,drowsiness during the day went down. So,I continue to use it.
M**A
مفيد وجيد
T**-
Not As Good As I Hoped
Trustpilot
2 days ago
3 weeks ago