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.

perdose
Updated

Home › Vitamins › Biotin

MyproteinVitaminsVegan

Impact Pre-Workout, Blue Raspberry (Tingle Free), 400 g

£17.49 for 400 g 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 5 mg£291.50One 5 mg dose is our comparison unit for biotin. It is not a recommendation.
A day£291.50
A week£2040.50
A month£8745.00
A year£106397.50

At one 5 mg dose a day, this pack lasts under a day. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Biotin

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 7.5 µg = 300 µg
  • £17.49 ÷ 300 µg × 5 mg = £291.50 per 5 mg
  • A week £291.50 × 7 = £2040.50 · a month × 30 = £8745.00 · a year × 365 = £106397.50
  • Amount per serving: stated on the label.

Caffeine

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 151 mg = 6.04 g
  • £17.49 ÷ 6.04 g × 200 mg = 57.9p per 200 mg
  • A week 57.9p × 7 = £4.05 · a month × 30 = £17.37 · a year × 365 = £211.39
  • Amount per serving: stated on the label.

Folate

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 30 µg = 1.2 mg
  • £17.49 ÷ 1.2 mg × 400 µg = £5.83 per 400 µg
  • A week £5.83 × 7 = £40.81 · a month × 30 = £174.90 · a year × 365 = £2127.95
  • Amount per serving: stated on the label.

L-Arginine

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 1.5 g = 60 g
  • £17.49 ÷ 60 g × 3 g = 87.4p per 3 g
  • A week 87.4p × 7 = £6.12 · a month × 30 = £26.24 · a year × 365 = £319.19
  • Amount per serving: stated on the label.

L-Citrulline

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 3 g = 120 g
  • £17.49 ÷ 120 g × 3 g = 43.7p per 3 g citrulline malate
  • A week 43.7p × 7 = £3.06 · a month × 30 = £13.12 · a year × 365 = £159.60
  • Amount per serving: estimated from the compound weight using our conversion factor.

Pantothenic acid (B5)

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 0.9 mg = 36 mg
  • £17.49 ÷ 36 mg × 500 mg = £242.92 per 500 mg
  • A week £242.92 × 7 = £1700.42 · a month × 30 = £7287.50 · a year × 365 = £88664.58
  • Amount per serving: stated on the label.

Riboflavin (vitamin B2)

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 0.2 mg = 8 mg
  • £17.49 ÷ 8 mg × 100 mg = £218.62 per 100 mg
  • A week £218.62 × 7 = £1530.37 · a month × 30 = £6558.75 · a year × 365 = £79798.12
  • Amount per serving: stated on the label.

Vitamin B6

  • Servings: 400 ÷ 10 per serving = 40
  • In the pack: 40 × 0.21 mg = 8.4 mg
  • £17.49 ÷ 8.4 mg × 50 mg = £104.11 per 50 mg
  • A week £104.11 × 7 = £728.75 · a month × 30 = £3123.21 · a year × 365 = £37999.11
  • 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: biotin

All 20, ranked →
WeightWorldBiotin Vitamin B7 TabletsCheapest per 5 mgWeightWorld · 12 mg a serving · 34p a month · a pack lasts 2.4 years1p£9.99View at WeightWorld (opens in a new tab)
VitaBrightBiotin Hair Growth SupplementVitaBright · 12 mg a serving · 62p a month · a pack lasts 2.6 years2p£19.99View at VitaBright (opens in a new tab)
VitaBrightBiotin Tablets with CoconutVitaBright · 12 mg a serving · 62p a month · a pack lasts 2.6 years2p£19.99View at VitaBright (opens in a new tab)
This productMyprotein · 7.5 µg a serving · £8745.00 a month · a pack lasts under a day£291.50shown above

Ranked purely by price per 5 mg. 244 combination products also contain biotin.

How it compares: caffeine

All 6, ranked →
Caffeine 200mgCheapest per 200 mgBulk · 200 mg a serving · £1.38 a month · a pack lasts 8 months5p£11.49View at Bulk (opens in a new tab)
Caffeine 200mgBulk · 200 mg a serving · £1.50 a month · a pack lasts 3 months5p£4.99View at Bulk (opens in a new tab)
Pure Caffeine TabletsMyprotein · 200 mg a serving · £1.95 a month · a pack lasts 7 months6p£12.99View at Myprotein (opens in a new tab)
This productMyprotein · 151 mg a serving · £17.37 a month · a pack lasts 30 days58pshown above

Ranked purely by price per 200 mg. 88 combination products also contain caffeine.

How it compares: folic acid

All 16, ranked →
Folic AcidCheapest per 400 µgHealf · 800 µg a serving · 34p a month · a pack lasts 1.4 years1p£5.73View at Healf (opens in a new tab)
ZipVitFolic Acid 400mcgZipVit · 400 µg a serving · 75p a month · a pack lasts 12 months2p£8.99View at ZipVit (opens in a new tab)
AlmusFolic Acid 400UG 6 90 TabletLloyds Pharmacy · 400 µg a serving · 76p a month · a pack lasts 3 months3p£2.29View at Lloyds Pharmacy (opens in a new tab)
This productMyprotein · 30 µg a serving · £174.90 a month · a pack lasts 3 days£5.83shown above

Ranked purely by price per 400 µg. 144 combination products also contain folate.

How it compares: arginine AKG

Compare every product in this form →
AAKG PowderCheapest per 3 gMyprotein · 3 g a serving · £4.68 a month · a pack lasts 5 months16p£25.99View at Myprotein (opens in a new tab)
This productMyprotein · 1.5 g a serving · £26.24 a month · a pack lasts 20 days87pshown above

Ranked purely by price per 3 g. 26 combination products also contain L-Arginine.

How it compares: citrulline malate

All 4, ranked →
Citrulline MalateCheapest per 3 g L-citrullineBulk · 3 g a serving · £1.57 a month · a pack lasts 11 months5p£17.49View at Bulk (opens in a new tab)
Citrulline MalateBulk · 3 g a serving · £1.80 a month · a pack lasts 5 months6p£9.99View at Bulk (opens in a new tab)
Citrulline MalateMyprotein · 2 g a serving · £6.21 a month · a pack lasts 5 months21p£34.49View at Myprotein (opens in a new tab)
This productMyprotein · 3 g a serving · £13.12 a month · a pack lasts 40 days44pshown above

Ranked purely by price per 3 g L-citrulline. 31 combination products also contain L-Citrulline.

How it compares: pantothenic acid (B5)

Compare every product in this form →
Pantothenic AcidCheapest per 500 mgHealf · 500 mg a serving · £4.71 a month · a pack lasts 3 months16p£15.69View at Healf (opens in a new tab)
Vitamin B5 500mg Pantothenic AcidLamberts Healthcare (Nature's Best) · 500 mg a serving · £5.25 a month · a pack lasts 2 months18p£10.50View at Lamberts Healthcare (opens in a new tab)
HealthAidCalcium Pantothenate (Vitamin B5) 750mg Prolonged ReleaseVitamin Planet · 750 mg a serving · £11.53 a month · a pack lasts 45 days38p£17.30View at Vitamin Planet (opens in a new tab)
This productMyprotein · 0.9 mg a serving · £7287.50 a month · a pack lasts under a day£242.92shown above

Ranked purely by price per 500 mg. 189 combination products also contain pantothenic acid (B5).

How it compares: riboflavin (vitamin B2)

Compare every product in this form →
RiboflavinCheapest per 100 mgHealf · 400 mg a serving · £2.31 a month · a pack lasts 8 months8p£18.49View at Healf (opens in a new tab)
Vitamin B2 100mgHealf · 100 mg a serving · £2.76 a month · a pack lasts 3 months9p£9.21View at Healf (opens in a new tab)
Vitamin B2 (Riboflavin) 50mgLamberts Healthcare (Nature's Best) · 50 mg a serving · £3.90 a month · a pack lasts 50 days13p£6.50View at Lamberts Healthcare (opens in a new tab)
This productMyprotein · 0.2 mg a serving · £6558.75 a month · a pack lasts under a day£218.62shown above

Ranked purely by price per 100 mg. 192 combination products also contain riboflavin (vitamin B2).

How it compares: vitamin B6 pyridoxine HCl

All 6, ranked →
ZipVitVitamin B6 50mgCheapest per 50 mgZipVit · 50 mg a serving · £1.00 a month · a pack lasts 12 months3p£11.99View at ZipVit (opens in a new tab)
Vitamin B6 Tablets 50mgSimply Supplements · 50 mg a serving · £1.11 a month · a pack lasts 12 months4p£13.29View at Simply Supplements (opens in a new tab)
Vitamin B6 100mgHealf · 100 mg a serving · £1.39 a month · a pack lasts 7 months5p£9.25View at Healf (opens in a new tab)
This productMyprotein · 0.21 mg a serving · £3123.21 a month · a pack lasts under a day£104.11shown above

Ranked purely by price per 50 mg. 280 combination products also contain vitamin B6.

On the label

Biotin · Biotin
7.5 µg per serving (stated on the label)
Caffeine · Caffeine
151 mg per serving (stated on the label)
Pack
400 g · 40 servings · 10 g a serving
Cost per serving
44p (40 servings in the pack)
More label details
Folate · Folic acid
30 µg per serving (stated on the label)
L-Arginine · Arginine AKG
1.5 g per serving (stated on the label)
L-Citrulline · Citrulline malate
3 g per serving (estimated from the compound weight using our conversion factor)
Pantothenic acid (B5) · Pantothenic acid (B5)
0.9 mg per serving (stated on the label)
Riboflavin (vitamin B2) · Riboflavin
0.2 mg per serving (stated on the label)
Vitamin B6 · Pyridoxine HCl
0.21 mg per serving (stated on the label)
Claimed on the listing
vegan, vegetarian
Barcode
5059883482514
Sold by
Myprotein
What the listing says
“400G” · “40servings” · “Per Daily Serving ; 10g” · “Biotin ; 7.5 mcg”
Ingredients

L-Citrulline DL-Malate 2:1, L-Arginine Alpha-Ketoglutarate, L-Tyrosine, Betaine, Taurine, Flavouring, Maltodextrin, Coffee Bean (Coffea L.) Extract, Acids (Citric Acid, Malic Acid), Anti-Caking Agent (Silicon Dioxide), Vitamin B Complex (Niacin, Pantothenic Acid, Vitamin B6, Vitamin B1, Vitamin B2, Folic Acid, Biotin, Vitamin B12), Sweeteners (Sucralose, Acesulfame K), Spirulina Extract.

From the Myprotein 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.

One 5 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
£17.49Myprotein
First recorded
£17.493 Oct
Checked on
18 dayssince 3 Oct
Pack price at each check.
  1. First checked at Myprotein: £17.49

Questions about this product

How much does Myprotein Impact Pre-Workout cost per 5 mg?

£291.50 per 5 mg, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

under a day at one 5 mg dose. The pack holds 300 µg in total.

How much does Myprotein Impact Pre-Workout cost per 200 mg?

58p per 200 mg, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

30 days at one 200 mg dose. The pack holds 6.04 g in total.

How much does Myprotein Impact Pre-Workout cost per 400 µg?

£5.83 per 400 µg, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

3 days at one 400 µg dose. The pack holds 1.2 mg in total.

How much does Myprotein Impact Pre-Workout cost per 3 g?

87p per 3 g, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

20 days at one 3 g dose. The pack holds 60 g in total.

How much does Myprotein Impact Pre-Workout cost per 3 g citrulline malate?

44p per 3 g citrulline malate, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

40 days at one 3 g dose. The pack holds 120 g in total.

How much does Myprotein Impact Pre-Workout cost per 500 mg?

£242.92 per 500 mg, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

under a day at one 500 mg dose. The pack holds 36 mg in total.

How much does Myprotein Impact Pre-Workout cost per 100 mg?

£218.62 per 100 mg, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

under a day at one 100 mg dose. The pack holds 8 mg in total.

How much does Myprotein Impact Pre-Workout cost per 50 mg?

£104.11 per 50 mg, from £17.49 for 400 g at Myprotein, checked on 20 October 2026.

How long does one pack last?

under a day at one 50 mg dose. The pack holds 8.4 mg 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.

All 558 Myprotein products, priced per doseVisit Myprotein (opens in a new tab)

More from Myprotein

Keep comparing

All biotinEvery form, cheapest per 5 mg firstBiotin guideWhat it is, why people take it, how the forms differMyproteinAll 558 products from this brand, per doseVitaminsEverything else we price in this categoryBiotin price historyEvery biotin product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from