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.

GreenbackSports & performance

Protein Water Lemon & Lime, 250 g

£24.99 for 250 g at Healf. 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 25 g protein£4.08One 25 g dose is our comparison unit for protein powder. It is not a recommendation.
A day£4.08
A week£28.58
A month£122.50
A year£1490.42

At one 25 g dose a day, this pack lasts 6 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Protein powder

  • Servings: 250 ÷ 25 per serving = 10
  • In the pack: 10 × 15.3 g = 153 g
  • £24.99 ÷ 153 g × 25 g = £4.08 per 25 g protein
  • A week £4.08 × 7 = £28.58 · a month × 30 = £122.50 · a year × 365 = £1490.42
  • Amount per serving: stated on the label.

Vitamin B12

  • Servings: 250 ÷ 25 per serving = 10
  • In the pack: 10 × 0.6 µg = 6 µg
  • £24.99 ÷ 6 µg × 1 mg = £4165.00 per 1 mg
  • A week £4165.00 × 7 = £29155.00 · a month × 30 = £124950.00 · a year × 365 = £1520225.00
  • Amount per serving: stated on the label.

Vitamin B6

  • Servings: 250 ÷ 25 per serving = 10
  • In the pack: 10 × 0.57 mg = 5.7 mg
  • £24.99 ÷ 5.7 mg × 50 mg = £219.21 per 50 mg
  • A week £219.21 × 7 = £1534.47 · a month × 30 = £6576.32 · a year × 365 = £80011.84
  • Amount per serving: stated on the label.

Vitamin C

  • Servings: 250 ÷ 25 per serving = 10
  • In the pack: 10 × 50 mg = 500 mg
  • £24.99 ÷ 500 mg × 1 g = £49.98 per 1 g
  • A week £49.98 × 7 = £349.86 · a month × 30 = £1499.40 · a year × 365 = £18242.70
  • Amount per serving: stated on the label.

Zinc

  • Servings: 250 ÷ 25 per serving = 10
  • In the pack: 10 × 2 mg = 20 mg
  • £24.99 ÷ 20 mg × 15 mg = £18.74 per 15 mg zinc
  • A week £18.74 × 7 = £131.20 · a month × 30 = £562.27 · a year × 365 = £6841.01
  • 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: pea protein

All 31, ranked →
Vegan Pea Protein 4kg Chocolate SilkCheapest per 25 g proteinProtein Works · 22 g a serving · £12.27 a month · a pack lasts 4 months41p£47.99View at Protein Works (opens in a new tab)
Vegan Pea Protein 2kg Chocolate SilkProtein Works · 22 g a serving · £12.78 a month · a pack lasts 59 days43p£24.99View at Protein Works (opens in a new tab)
Vegan Pea Protein 1kg Chocolate SilkProtein Works · 22 g a serving · £14.31 a month · a pack lasts 29 days48p£13.99View at Protein Works (opens in a new tab)
This productHealf · 15.3 g a serving · £122.50 a month · a pack lasts 6 days£4.08shown above

Ranked purely by price per 25 g protein. 30 combination products also contain protein powder.

How it compares: vitamin B12 cyanocobalamin

All 12, ranked →
Vitamin B-12 1000 mcgCheapest per 1 mgHealf · 1 mg a serving · £1.65 a month · a pack lasts 3 months5p£5.49View at Healf (opens in a new tab)
Vitamin B12 1000mcgHealf · 1 mg a serving · £2.40 a month · a pack lasts 8 months8p£19.99View at Healf (opens in a new tab)
VeganicityVitamin B12 1000ugVitamin Planet · 1 mg a serving · £2.65 a month · a pack lasts 3 months9p£7.96View at Vitamin Planet (opens in a new tab)
This productHealf · 0.6 µg a serving · £124950.00 a month · a pack lasts under a day£4165.00shown above

Ranked purely by price per 1 mg. 44 combination products also contain vitamin B12.

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 productHealf · 0.57 mg a serving · £6576.32 a month · a pack lasts under a day£219.21shown above

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

How it compares: vitamin C

All 113, ranked →
Vitamin C Plus TabletsCheapest per 1 gMyprotein · 1 g a serving · £1.00 a month · a pack lasts 6 months3p£5.99View at Myprotein (opens in a new tab)
Vitamin C Crystals PowderHealf · 1.1 g a serving · £1.01 a month · a pack lasts 7 months3p£7.61View at Healf (opens in a new tab)
Vitamin C PowderLamberts Healthcare (Nature's Best) · 1 g a serving · £1.50 a month · a pack lasts 8 months5p£12.50View at Lamberts Healthcare (opens in a new tab)
This productHealf · 50 mg a serving · £1499.40 a month · a pack lasts under a day£49.98shown above

Ranked purely by price per 1 g. 950 combination products also contain vitamin C.

How it compares: other forms of zinc

All 25, ranked →
Zinc 50mgCheapest per 15 mg zincHealf · 50 mg a serving · 84p a month · a pack lasts 10 months3p£8.44View at Healf (opens in a new tab)
Zinc Complex 360 TabletsHealthspan · 15 mg a serving · £1.08 a month · a pack lasts 12 months4p£12.99View at Healthspan (opens in a new tab)
Zinc Transporters TabletsHealf · 22 mg a serving · £1.13 a month · a pack lasts 4 months4p£4.99View at Healf (opens in a new tab)
This productHealf · 2 mg a serving · £562.27 a month · a pack lasts 1 day£18.74shown above

Ranked purely by price per 15 mg zinc. 149 combination products also contain zinc.

On the label

Protein powder · Pea protein
15.3 g per serving (stated on the label)
Vitamin B12 · Cyanocobalamin
0.6 µg per serving (stated on the label)
Pack
250 g · 10 servings · 25 g a serving
Cost per serving
£2.50 (10 servings in the pack)
More label details
Vitamin B6 · Pyridoxine HCl
0.57 mg per serving (stated on the label)
Vitamin C · Standard (ascorbic acid and ascorbates)
50 mg per serving (stated on the label)
Zinc · Other forms
2 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“250g” · “Servings Per Container: 10” · “Serving Size: 25 g” · “Protein ; 15.3 g”
Ingredients

Hydrolysed Pea Protein Peptides, Natural Flavours, Fibre (Acacia Gum & Inulin, from Chicory Root), Acidity Regulator (Citric Acid), Sweetener (Steviol Glycosides)

From the Healf 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 25 g dose is our comparison unit, not a recommendation.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£24.99Healf
First recorded
£24.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £24.99

Questions about this product

How much does Greenback Protein Water Lemon & Lime cost per 25 g protein?

£4.08 per 25 g protein, from £24.99 for 250 g at Healf, checked on 20 October 2026.

How long does one pack last?

6 days at one 25 g dose. The pack holds 153 g in total.

How much does Greenback Protein Water Lemon & Lime cost per 1 mg?

£4165.00 per 1 mg, from £24.99 for 250 g at Healf, checked on 20 October 2026.

How long does one pack last?

under a day at one 1 mg dose. The pack holds 6 µg in total.

How much does Greenback Protein Water Lemon & Lime cost per 50 mg?

£219.21 per 50 mg, from £24.99 for 250 g at Healf, checked on 20 October 2026.

How long does one pack last?

under a day at one 50 mg dose. The pack holds 5.7 mg in total.

How much does Greenback Protein Water Lemon & Lime cost per 1 g?

£49.98 per 1 g, from £24.99 for 250 g at Healf, checked on 20 October 2026.

How long does one pack last?

under a day at one 1 g dose. The pack holds 500 mg in total.

How much does Greenback Protein Water Lemon & Lime cost per 15 mg zinc?

£18.74 per 15 mg zinc, from £24.99 for 250 g at Healf, checked on 20 October 2026.

How long does one pack last?

1 day at one 15 mg dose. The pack holds 20 mg in total.

Keep comparing