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 › Amino acids & derivatives › Collagen

Protein WorksAmino acids & derivatives

Marine Collagen Extra, 60 capsules

£9.99 for 60 capsules at Protein Works. 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 10 g£3.33One 10 g dose is our comparison unit for collagen. It is not a recommendation.
A day£3.33
A week£23.31
A month£99.90
A year£1215.45

At one 10 g dose a day, this pack lasts 3 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Collagen

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 1 g = 30 g
  • £9.99 ÷ 30 g × 10 g = £3.33 per 10 g
  • A week £3.33 × 7 = £23.31 · a month × 30 = £99.90 · a year × 365 = £1215.45
  • Amount per serving: stated on the label.

Vitamin C

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 40 mg = 1.2 g
  • £9.99 ÷ 1.2 g × 1 g = £8.33 per 1 g
  • A week £8.33 × 7 = £58.28 · a month × 30 = £249.75 · a year × 365 = £3038.63
  • Amount per serving: stated on the label.

Zinc

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 3 mg = 90 mg
  • £9.99 ÷ 90 mg × 15 mg = £1.67 per 15 mg zinc
  • A week £1.67 × 7 = £11.66 · a month × 30 = £49.95 · a year × 365 = £607.73
  • 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: marine collagen

All 70, ranked →
Marine Collagen 1500mgCheapest per 10 gSimply Supplements · 1.5 g a serving · £20.54 a month · a pack lasts 27 days68p£18.49View at Simply Supplements (opens in a new tab)
MSC Certified Marine CollagenHealf · 7.5 g a serving · £27.93 a month · a pack lasts 45 days93p£41.89View at Healf (opens in a new tab)
Marine CollagenMyprotein · 10 g a serving · £27.99 a month · a pack lasts 30 days93p£27.99View at Myprotein (opens in a new tab)
This productProtein Works · 1 g a serving · £99.90 a month · a pack lasts 3 days£3.33shown above

Ranked purely by price per 10 g. 68 combination products also contain collagen.

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 productProtein Works · 40 mg a serving · £249.75 a month · a pack lasts 1 day£8.33shown above

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

How it compares: zinc citrate

All 17, ranked →
Zinc 15mg 180 Tablets (6 month supply)Cheapest per 15 mg zincBoots · 15 mg a serving · £1.29 a month · a pack lasts 6 months4p£7.75View at Boots (opens in a new tab)
Zinc 15mgLamberts Healthcare (Nature's Best) · 15 mg a serving · £1.33 a month · a pack lasts 6 months4p£7.95View at Lamberts Healthcare (opens in a new tab)
Zinc Tablets 15mgSimply Supplements · 15 mg a serving · £1.33 a month · a pack lasts 6 months4p£7.99View at Simply Supplements (opens in a new tab)
This productProtein Works · 3 mg a serving · £49.95 a month · a pack lasts 6 days£1.67shown above

Ranked purely by price per 15 mg zinc. 201 combination products also contain zinc.

On the label

Collagen · Marine
1 g per serving (stated on the label)
Vitamin C · Standard (ascorbic acid and ascorbates)
40 mg per serving (stated on the label)
Pack
60 capsules · 30 servings · 2 capsule(s) a serving
Cost per serving
33p (30 servings in the pack)
More label details
Zinc · Citrate
3 mg per serving (stated on the label)
Barcode
5061062520757
Sold by
Protein Works
What the listing says
“60 Capsules” · “Per 2 Capsules” · “[Marine Collagen ; 1000mg]”
Ingredients

Marine Collagen (Fish), Capsule Shell (Hydroxypropyl Methyl Cellulose), Vitamin C (Ascorbic Acid), Zinc Citrate, L-Selenomethionine.

From the Protein Works 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 10 g dose is our comparison unit, not a recommendation.

Price history

No price change since 23 September 2026. Checked on 2 days, most recently 9 October 2026.

Price at every check
£9.99Protein Works
First recorded
£9.9923 Sept
Checked on
2 dayssince 23 Sept
Pack price at each check.
  1. First checked at Protein Works: £9.99

Questions about this product

How much does Protein Works Marine Collagen Extra cost per 10 g?

£3.33 per 10 g, from £9.99 for 60 capsules at Protein Works, checked on 9 October 2026.

How long does one pack last?

3 days at one 10 g dose. The pack holds 30 g in total.

How much does Protein Works Marine Collagen Extra cost per 1 g?

£8.33 per 1 g, from £9.99 for 60 capsules at Protein Works, checked on 9 October 2026.

How long does one pack last?

1 day at one 1 g dose. The pack holds 1.2 g in total.

How much does Protein Works Marine Collagen Extra cost per 15 mg zinc?

£1.67 per 15 mg zinc, from £9.99 for 60 capsules at Protein Works, checked on 9 October 2026.

How long does one pack last?

6 days at one 15 mg dose. The pack holds 90 mg in total.

About Protein Works

Founded 2012 · Liverpool, England · Part of Lactalis

Protein Works is a British nutrition company founded in 2012 by Mark Coxhead, Nick Smith and Karl Jacobie. It is based at PW Campus in Speke, Liverpool, which opened in 2025 and replaced several sites in Runcorn.

All 149 Protein Works products, priced per doseVisit Protein Works (opens in a new tab)

More from Protein Works

Keep comparing

All collagenEvery form, cheapest per 10 g firstMarine collagen70 products rankedCollagen guideWhat it is, why people take it, how the forms differProtein WorksAll 149 products from this brand, per doseAmino acids & derivativesEverything else we price in this categoryCollagen price historyEvery collagen 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