We earn commission on purchases made through our links. It never affects ranking: tables are ordered purely by price per dose, and no retailer or brand can pay for position.We earn commission when you buy through our links. It never affects the ranking. Full disclosure.

Vitamins

Inositol, 100 g

£10.49 for 100 g at Bulk. That works out at 21p per 2 g, which ranks it 4th of the 17 myo-inositol products we price across 5 UK retailers.

What it really costs, per 2 g21pOne 2 g dose is our comparison unit for inositol. It is not a recommendation.

A day21p

A week£1.47

A month£6.29

A year£76.58

At one 2 g dose a day, this pack lasts 50 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Servings: 100 ÷ 0.5 per serving = 200
In the pack: 200 × 500 mg = 100 g
£10.49 ÷ 100 g × 2 g = 21p per 2 g
A week 21p × 7 = £1.47 · a month × 30 = £6.29 · a year × 365 = £76.58
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.

Cheaper myo-inositol

All 17, ranked →

InositolCheapest per 2 gBulk · 500 mg a serving · £3.84 a month · a pack lasts 1.4 years13p£63.99View at Bulk

InositolBulk · 500 mg a serving · £4.08 a month · a pack lasts 8 months14p£33.99View at Bulk

Myo-Inositol Powder 200gLamberts Healthcare (Nature's Best) · 4 g a serving · £5.67 a month · a pack lasts 3 months19p£18.90View at Lamberts Healthcare

This productBulk · 500 mg a serving · £6.29 a month · a pack lasts 50 days21pshown above

Switching to the Bulk pack saves £2.45 a month at the same 2 g dose.

Ranked purely by price per 2 g. 54 combination products also contain inositol.

Pack sizes

Pack	Price	Per dose	A year
1 kg	£63.99	13p	£46.71
500 g	£33.99	14p	£49.63
100 gthis pack	£10.49	21p	£76.58

At one 2 g dose a day, the 1 kg pack costs £29.86 less a year than this one.

On the label

Inositol · Myo-inositol: 500 mg per serving (stated on the label)
Pack: 100 g · 200 servings · 0.5 g a serving
Cost per serving: 5p (200 servings in the pack)

More label details

Barcode: 5060343742574
Sold by: Bulk
What the listing says: “100g” · “Per Serving (500 mg)” · “[Inositol ; 500mg]”

Ingredients

Inositol (myo-inositol).

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

Is something wrong? Tell us

Add to your basket

View basket

Your basket prices everything you take together: whole packs, delivery included, from as few websites as you like.

Daily dosemgFordays

One 2 g dose is our comparison unit, not a recommendation.

Price history

No price change since 20 September 2026. Checked on 1 day, most recently 20 September 2026.

Price at every check: £10.49Bulk
First recorded: £10.4920 Sept
Checked on: 1 daysince 20 Sept

Checked once so far, on 20 September 2026.

20 SeptFirst checked at Bulk: £10.49

Questions about this product

How much does Bulk Inositol cost per 2 g?

21p per 2 g, from £10.49 for 100 g at Bulk, checked on 20 September 2026.

Is it the cheapest myo-inositol in the UK?

No, it is 4th of 17. Inositol at Bulk works out at 13p per 2 g.

How long does one pack last?

50 days at one 2 g dose. The pack holds 100 g in total.

About Bulk

Founded 2006 · Colchester, England

Bulk is a British sports nutrition company based in Colchester, Essex. Adam Rossiter and Elliot Dawes, who met at the University of Essex, started it in 2006 as Bulk Powders; it was renamed Bulk at the start of 2021, and the founders remain its majority owners.

All 133 Bulk products, priced per dose Visit Bulk (opens in a new tab)

Keep comparing

All inositolEvery form, cheapest per 2 g first Inositol guideWhat it is, why people take it, how the forms differ BulkAll 133 products from this brand, per dose VitaminsEverything else we price in this category Inositol price historyEvery inositol product's price per dose and price history Build a basketThe cheapest way to buy several at once How we compareWhere every number on this page comes from