Vitamin Supplements: B12, D3, C and More

Vitamins get bought for a reason, so this page is arranged the way people actually shop: goal first, nutrient second, format third.

How to choose a vitamin supplement by goal

Energy and tiredness

The B group is where this sits. Niacin comes as 100 tablets of 100 mg, B12 as high-dose tablets at 1,000 mcg of the active form, and the B Complex puts the whole family in one vegetarian capsule. Vitamin B12 contributes to the reduction of tiredness and fatigue. Cibdol's Iron plus Vitamin C pairs the two nutrients because vitamin C increases iron absorption.

Vitamins for sleep and stress

L-Tryptophan/B6 is the straightforward one: two capsules give 1,000 mg of the amino acid plus 20 mg of B6, taken roughly half an hour before bed, ninety to a pot. 5-HTP is the other route, 75 mg a capsule from Griffonia simplicifolia seeds.

Immunity

Vitamin C in tablets or capsules, vitamin D3 for the months when British daylight does nothing for you, and Immune Support, which leans on echinacea and ginkgo instead.

Menopause

Menopause Relief from Dawn Nutrition, built on black cohosh, red clover and zinc, two tablets a day.

Vitamins for vegans and vegetarians

A good share of this range says vegan or vegetarian on the label rather than in the marketing. Cibdol's Vegan Vitamin D3 runs 120 tablets a jar, the niacin tablets are vegan, the B Complex is in vegetarian capsules and the acerola powder is organic and plant-derived. B12 is the one worth flagging: it is the nutrient a plant-based diet most reliably misses, which is why it turns up here in a tablet, a capsule and inside the acerola powder.

What the numbers on the label mean

A tablet of niacin says 100 mg and a tablet of B12 says 1,000 mcg, and those are not typos: a microgram is a thousandth of a milligram, so the B12 dose is far smaller than it looks. Jar counts matter too. Cibdol's jars run 60 capsules, the niacin pot runs 100 tablets and the Cibdol Vegan D3 runs 120, which is what actually decides how long a purchase lasts.

Popular vitamins in this range: sprays against tablets

Three products here are oral sprays: vitamin D from Mindscopic, plus StressLess and Clarity and Focus from Foodsporen. You spray under the tongue, there is nothing to swallow, and the vitamin D one tastes of raspberry. The honest trade-off is cost per dose, which runs higher than a tablet, so pick a spray because you will use it, not because it sounds better.

Discreet UK delivery and freshness

Everything on this page ships to UK addresses in plain, unbranded packaging, and stock rotates rather than sitting in a warehouse for years. If you are new to this, one single vitamin beats a cupboard full of jars you never finish.