Compare every Vitamin B12 product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Cobalamin - essential for nerve function and red blood cell formation
We rank Vitamin B12 by price per 2.5mcg - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
What it is
Vitamin B12 is a nutrient also known as cobalamin. It is an essential vitamin, meaning the body cannot make it on its own and it must be obtained through diet or supplements.
Why it's used
It is primarily used to support the following functions:
Nerve function: It helps maintain the protective coating around nerves.
Red blood cell formation: It is necessary for the body to create healthy red blood cells that carry oxygen to organs.
How it's made
Commercial Vitamin B12 is produced through a process called bacterial fermentation. Specific bacteria are grown in large tanks where they naturally produce the vitamin, which is then extracted, purified, and dried into a powder for use in tablets or capsules.
What it typically costs
This ingredient is generally mid-range in price. This is because the fermentation process required to grow the bacteria is more complex than the simple chemical synthesis used for some other basic vitamins.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Cobalamin - essential for nerve function and red blood cell formation
How does Suppio calculate the best-value Vitamin B12?
We rank Vitamin B12 by price per 2.5mcg - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Are these prices verified?
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are Vitamin B12 prices updated?
Prices across our retailer network are refreshed at least daily.