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MyproteinAmino acids & derivativesVegan

Origin Intra-Workout, Original (White), 1.2 kg

£14.99 for 1.2 kg at Myprotein. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 2.5 g75pOne 2.5 g dose is our comparison unit for betaine (TMG). It is not a recommendation.
A day75p
A week£5.25
A month£22.49
A year£273.57

At one 2.5 g dose a day, this pack lasts 20 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Betaine (TMG)

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 2.5 g = 50 g
  • £14.99 ÷ 50 g × 2.5 g = 75p per 2.5 g
  • A week 75p × 7 = £5.25 · a month × 30 = £22.49 · a year × 365 = £273.57
  • Amount per serving: stated on the label.

Carbohydrate powders

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 30 g = 600 g
  • £14.99 ÷ 600 g × 50 g = £1.25 per 50 g
  • A week £1.25 × 7 = £8.74 · a month × 30 = £37.48 · a year × 365 = £455.95
  • Amount per serving: stated on the label.

D-Ribose

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 5 g = 100 g
  • £14.99 ÷ 100 g × 5 g = 75p per 5 g
  • A week 75p × 7 = £5.25 · a month × 30 = £22.49 · a year × 365 = £273.57
  • Amount per serving: stated on the label.

L-Leucine

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 3.5 g = 70 g
  • £14.99 ÷ 70 g × 3 g = 64.2p per 3 g
  • A week 64.2p × 7 = £4.50 · a month × 30 = £19.27 · a year × 365 = £234.49
  • Amount per serving: stated on the label.

L-Tryptophan

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 100 mg = 2 g
  • £14.99 ÷ 2 g × 500 mg = £3.75 per 500 mg
  • A week £3.75 × 7 = £26.23 · a month × 30 = £112.43 · a year × 365 = £1367.84
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 60 mg = 1.2 g
  • £14.99 ÷ 1.2 g × 100 mg = £1.25 per 100 mg magnesium
  • A week £1.25 × 7 = £8.74 · a month × 30 = £37.48 · a year × 365 = £455.95
  • Amount per serving: stated on the label.

Potassium

  • Servings: 1200 ÷ 60 per serving = 20
  • In the pack: 20 × 300 mg = 6 g
  • £14.99 ÷ 6 g × 200 mg = 50p per 200 mg potassium
  • A week 50p × 7 = £3.50 · a month × 30 = £14.99 · a year × 365 = £182.38
  • 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: betaine anhydrous

All 7, ranked →
TMG Pro PowderCheapest per 2.5 gHealf · 1 g a serving · £8.71 a month · a pack lasts 40 days29p£11.61View at Healf (opens in a new tab)
TMG Betaine 1000mg TabsHealf · 3 g a serving · £10.29 a month · a pack lasts 40 days34p£13.72View at Healf (opens in a new tab)
TMG 1000mgHealf · 1 g a serving · £10.62 a month · a pack lasts 48 days35p£16.99View at Healf (opens in a new tab)
This productMyprotein · 2.5 g a serving · £22.49 a month · a pack lasts 20 days75pshown above

Ranked purely by price per 2.5 g. 53 combination products also contain betaine (TMG).

How it compares: cyclic dextrin

All 10, ranked →
Carb XCheapest per 50 gApplied Nutrition · 24 g a serving · £39.00 a month · a pack lasts 23 days£1.30£29.95View at Applied Nutrition (opens in a new tab)
Carb XApplied Nutrition · 24 g a serving · £39.00 a month · a pack lasts 23 days£1.30£29.95View at Applied Nutrition (opens in a new tab)
Carb XApplied Nutrition · 24 g a serving · £39.00 a month · a pack lasts 23 days£1.30£29.95View at Applied Nutrition (opens in a new tab)
This productMyprotein · 30 g a serving · £37.48 a month · a pack lasts 12 days£1.25shown above

Ranked purely by price per 50 g. 2 combination products also contain carbohydrate powders.

D Ribose Powder 500gCheapest per 5 gBulk · 5 g a serving · £6.00 a month · a pack lasts 3 months20p£19.99View at Bulk (opens in a new tab)
HealthaidD-Ribose 1000mgVitamin Planet · 1 g a serving · £36.42 a month · a pack lasts 18 days£1.21£21.85View at Vitamin Planet (opens in a new tab)
This productMyprotein · 5 g a serving · £22.49 a month · a pack lasts 20 days75pshown above

Ranked purely by price per 5 g. 21 combination products also contain D-Ribose.

How it compares: L-Tryptophan

Compare every product in this form →
TryptophanCheapest per 500 mgBulk · 220 mg a serving · 75p a month · a pack lasts 7 months2p£4.99View at Bulk (opens in a new tab)
L-Tryptophan 500mgHealf · 1 g a serving · £6.50 a month · a pack lasts 2 months22p£12.99View at Healf (opens in a new tab)
This productMyprotein · 100 mg a serving · £112.43 a month · a pack lasts 4 days£3.75shown above

Ranked purely by price per 500 mg. 29 combination products also contain L-Tryptophan.

How it compares: magnesium citrate

All 38, ranked →
Magnesium Citrate Tablets 700mgCheapest per 100 mg magnesiumSimply Supplements · 700 mg a serving · 50p a month · a pack lasts 2.3 years2p£13.99View at Simply Supplements (opens in a new tab)
Natures AidMagnesium Citrate 750mg 60 CapsulesLloyds Pharmacy · 750 mg a serving · 76p a month · a pack lasts 1.2 years3p£11.45View at Lloyds Pharmacy (opens in a new tab)
Magnesium CitrateHealf · 400 mg a serving · £1.54 a month · a pack lasts 11 months5p£16.45View at Healf (opens in a new tab)
This productMyprotein · 60 mg a serving · £37.48 a month · a pack lasts 12 days£1.25shown above

Ranked purely by price per 100 mg magnesium. Labels here do not all state the same thing: this one gives stated on the label, the cheapest gives estimated from the compound weight using our conversion factor. Check both before choosing. 187 combination products also contain magnesium.

How it compares: potassium chloride

Compare every product in this form →
Liquid PotassiumCheapest per 200 mg potassiumHealf · 99 mg a serving · £34.81 a month · a pack lasts 15 days£1.16£17.23View at Healf (opens in a new tab)
This productMyprotein · 300 mg a serving · £14.99 a month · a pack lasts 30 days50pshown above

Ranked purely by price per 200 mg potassium. 149 combination products also contain potassium.

On the label

Betaine (TMG) · Betaine anhydrous (TMG)
2.5 g per serving (stated on the label)
Carbohydrate powders · Cyclic dextrin (cluster dextrin)
30 g per serving (stated on the label)
Pack
1.2 kg · 20 servings · 60 g a serving
Cost per serving
75p (20 servings in the pack)
More label details
D-Ribose · D-Ribose
5 g per serving (stated on the label)
L-Leucine · L-Leucine
3.5 g per serving (stated on the label)
L-Tryptophan · L-Tryptophan
100 mg per serving (stated on the label)
Magnesium · Citrate
60 mg per serving (stated on the label)
Potassium · Chloride
300 mg per serving (stated on the label)
Claimed on the listing
vegan, vegetarian
Barcode
5059883488516
Sold by
Myprotein
What the listing says
“1.2kg” · “20servings” · “Mix 60g” · “Betaine ; 2500.0mg”
Ingredients

Highly Branched Cyclic Dextrin, D-Ribose, L-Citrulline DL-Malate, L-Leucine, Betaine, Inulin, Acids (Citric Acid, Malic Acid), Sodium Citrate, L-Threonine, L-Lysine Hydrochloride, Taurine, Coconut Water Powder, Flavouring, L-Isoleucine, L-Valine, L-Histidine, Emulsifier (Sunflower Lecithin), Natural Flavourings, Potassium Chloride, L-Phenylalanine, L-Methionine, Magnesium Salts of Citric Acid, Sweeteners (Acesulfame K, Sucralose, Steviol Glycosides from Stevia), L-Tryptophan.

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

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One 2.5 g 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
£14.99Myprotein
First recorded
£14.993 Oct
Checked on
18 dayssince 3 Oct
Pack price at each check.
  1. First checked at Myprotein: £14.99

Questions about this product

How much does Myprotein Origin Intra-Workout cost per 2.5 g?

75p per 2.5 g, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

20 days at one 2.5 g dose. The pack holds 50 g in total.

How much does Myprotein Origin Intra-Workout cost per 50 g?

£1.25 per 50 g, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

12 days at one 50 g dose. The pack holds 600 g in total.

How much does Myprotein Origin Intra-Workout cost per 5 g?

75p per 5 g, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

20 days at one 5 g dose. The pack holds 100 g in total.

How much does Myprotein Origin Intra-Workout cost per 3 g?

64p per 3 g, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

23 days at one 3 g dose. The pack holds 70 g in total.

How much does Myprotein Origin Intra-Workout cost per 500 mg?

£3.75 per 500 mg, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

4 days at one 500 mg dose. The pack holds 2 g in total.

How much does Myprotein Origin Intra-Workout cost per 100 mg magnesium?

£1.25 per 100 mg magnesium, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

12 days at one 100 mg dose. The pack holds 1.2 g in total.

How much does Myprotein Origin Intra-Workout cost per 200 mg potassium?

50p per 200 mg potassium, from £14.99 for 1.2 kg at Myprotein, checked on 20 October 2026.

How long does one pack last?

30 days at one 200 mg dose. The pack holds 6 g in total.

About Myprotein

Founded 2004 · Manchester, England · Part of THG plc

Myprotein is a sports nutrition brand founded in 2004 by Oliver Cookson and bought in 2011 by The Hut Group, now the London-listed THG plc. It is based in Manchester and is part of THG's nutrition division.

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