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VitaminsVegan

Niacinamide Tablets, 90 tablets

£4.99 for 90 tablets at Myprotein. That works out at 6p per 500 mg, which ranks it 1st of the 5 niacinamide products we price across 3 UK retailers.

What it really costs, per 500 mg6pOne 500 mg dose is our comparison unit for niacin (vitamin B3). It is not a recommendation.

A day6p

A week43p

A month£1.85

A year£22.49

At one 500 mg dose a day, this pack lasts 3 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Servings: 90 ÷ 1 per serving = 90
In the pack: 90 × 450 mg = 40.5 g
£4.99 ÷ 40.5 g × 500 mg = 6.16p per 500 mg
A week 6.16p × 7 = 43p · a month × 30 = £1.85 · a year × 365 = £22.49
Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

How it compares: niacinamide

All 5, ranked →

This productCheapest per 500 mgMyprotein · 450 mg a serving · £1.85 a month · a pack lasts 3 months6pshown above

Niacinamide TabletsMyprotein · 450 mg a serving · £3.32 a month · a pack lasts 27 days11p£2.99View at Myprotein

Ranked purely by price per 500 mg. 164 combination products also contain niacin (vitamin B3).

Pack sizes

Pack	Price	Per dose	A year
90 tabletsthis pack	£4.99	6p	£22.49
30 tablets	£2.99	11p	£40.42

This pack is the cheapest of the 2 sizes per dose.

On the label

Niacin (vitamin B3) · Niacinamide: 450 mg per serving (stated on the label)
Pack: 90 tablets · 90 servings · 1 tablet(s) a serving
Cost per serving: 6p (90 servings in the pack)

More label details

Claimed on the listing: vegan, vegetarian
Barcode: 5059883308968
Sold by: Myprotein
What the listing says: “90Tablets” · “Consume 1 tablet as a daily serving” · “Niacin ; 450mg ; 2813”

Ingredients

Niacin, Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agents (Magnesium Stearate, Silicon Dioxide).

From the Myprotein listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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Daily dosemgFordays

One 500 mg dose is our comparison unit, not a recommendation.

Price history

No price change since 3 October 2026. Checked on 18 days, most recently 20 October 2026.

Price at every check: £4.99Myprotein
First recorded: £4.993 Oct
Checked on: 18 dayssince 3 Oct

Pack price at each check.

3 OctFirst checked at Myprotein: £4.99

Questions about this product

How much does Myvitamins Niacinamide Tablets cost per 500 mg?

6p per 500 mg, from £4.99 for 90 tablets at Myprotein, checked on 20 October 2026.

Is it the cheapest niacinamide in the UK?

Yes. Of the 5 we price across 3 UK retailers, this is the cheapest per 500 mg.

How long does one pack last?

3 months at one 500 mg dose. The pack holds 40.5 g in total.

About Myvitamins

Founded 2012 · Manchester, England · Part of THG plc

Myvitamins is a vitamins and supplements brand launched in August 2012 by The Hut Group, now THG plc, as a sister brand to Myprotein. It is run by THG Nutrition, part of Manchester-based THG.

All 118 Myvitamins products, priced per dose Visit Myvitamins (opens in a new tab)