Doctor's Best Fully Active B12 gives 1,500 mcg of vitamin B12 as methylcobalamin, an active form of the vitamin, in a vegetarian capsule. A bottle holds 60 capsules. Vitamin B12 is needed to make red blood cells and to keep nerves working normally. It is found almost only in animal foods, which is why vegans and many vegetarians need a supplement or fortified foods.
At a glance
| Detail | Doctor's Best Fully Active B12 |
|---|---|
| Brand | Doctor's Best |
| Type | Vitamin B12 capsule |
| Per capsule | 1,500 mcg vitamin B12 as methylcobalamin |
| Size | 60 veggie capsules |
| Capsule | Vegetarian |
| Directions | Follow the directions on the label |
What is in it
Methylcobalamin. B12 supplements come in a few forms. Cyanocobalamin is the most common and the most studied. Methylcobalamin is one of the forms the body uses directly. Both raise B12 levels.
Why the dose looks so high. Adults need only about 2.4 mcg of B12 a day, but the body absorbs just a small share of a large oral dose. That is why B12 supplements are sold in the hundreds or thousands of micrograms. No upper level has been set for B12 in Australia, as extra is passed out in urine.
Who it suits
- Vegans and vegetarians who get little or no B12 from food.
- Adults over 50, who often absorb less B12 from food.
- People who want the methylcobalamin form in a vegetarian capsule.
Who should check first
- Taking metformin or long term reflux medicine: these can lower B12 levels over time. Ask your GP about a blood test so you know your starting point.
- Tired, pale, or tingling in the hands or feet: see your GP before you self-treat. Low B12 has several causes, and some need injections instead of capsules.
- Pregnant or breastfeeding: check with your doctor or midwife, especially if you are vegan or vegetarian.
How to use it
Follow the directions on the label and do not take more than it says. B12 can be taken with or without food, at any time of day.
Where to buy Doctor's Best Fully Active B12 in Melbourne and Australia
Shop Doctor's Best Fully Active B12 1500 mcg online at Supps247 with Australia-wide delivery, or order online and use click and collect at Supps247 stores that offer online pickup. Stock varies by store, so check online or use the store locator before you travel. You can also browse more from Doctor's Best.
FAQs
How much B12 is in each capsule?
1,500 mcg, as methylcobalamin.
Is it suitable for vegetarians?
Yes. The capsule is vegetarian.
Is methylcobalamin better than cyanocobalamin?
Both raise B12 levels. Methylcobalamin is an active form, and cyanocobalamin is the most studied form. Choose the one you prefer.
Details checked against the product listing on 12 November 2026. Formulas can change, so always read the label on the product you buy and follow the directions.
This article is general information, not medical advice.
