Thiamine

There are 8 B vitamins in total, but the ones you might recognise the most are biotin, folate (folic acid) and vitamin B12.

You can also take a vitamin B complex which includes all of the recommended doses of all 8 in a single supplement.

Vitamin B impacts your energy levels, brain function, metabolism, and is especially important for pregnant and breastfeeding women as it aids fetal development and can reduce the risk of birth defects.

Taking vitamin B is important for older men, too, as it can increase testosterone levels which are thought to naturally decrease with age.

Vitamin B7 and biotin won’t directly cause acne, but they can stop your body from absorbing other vitamins, like B5, which may be keeping your acne under control.

Recent studies have emerged claiming that vitamin B12 can affect the number of bacteria that live on the skin.

Vitamin B12 may increase inflammation which is a leading cause of acne - however, this is much more common in skin that is already prone to breakouts.

Yes, you can overdose on vitamins and supplements, so it’s important to take care with the supplements you’re taking.

You should not take more than one multivitamin a day.

These products will often contain the same vitamins and this can lead to you accidentally taking too much.

If you’re taking a multivitamin, you should also be very careful if you’re taking any separate singular supplements, such as a vitamin d supplement — you could end up taking too much if these overlap.

You can find out which vitamins and minerals are in your supplements by checking the nutritional values table on the packaging, so make sure you’re never doubling up on any nutrients.

If you have any concerns, make sure to speak to your doctor or pharmacist, just in case.

Look at the label first - you want to get a product that is 100% free from any animal product or animal-derived ingredients.

Most vitamins will boldly state whether they’re suitable for vegetarians or vegans, or have the official green logo on the container to provide clarity to shoppers.

Certain supplements, like omega 3, are harder to find in a vegan alternative.