Irish Sea Moss Capsules
£17.49 for 120 servings at WeightWorld. That works out at 55p per 1 g, which ranks it 4th of the 8 sea moss products we price across 5 UK retailers.
At one 1 g dose a day, this pack lasts 32 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- In the pack: 120 × 266.7 mg = 32 g
- £17.49 ÷ 32 g × 1 g = 54.6p per 1 g
- A week 54.6p × 7 = £3.83 · a month × 30 = £16.39 · a year × 365 = £199.47
- 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 sea moss
All 8, ranked →
Switching to the Nutravita pack saves £7.39 a month at the same 1 g dose.
Ranked purely by price per 1 g. 6 combination products also contain sea moss.
On the label
- Sea moss · Sea moss
- 266.7 mg per serving (stated on the label)
- Pack
- 120 servings · 1 capsule(s) a serving
- Cost per serving
- 15p (120 servings in the pack)
More label details
- Sold by
- WeightWorld
- What the listing says
- “Servings per Container: 120” · “Serving Size: 1 Capsule” · “Irish Sea Moss Extract 266.7mg (15:1)” · “Irish Sea Moss Extract 266.7mg (15:1) ; 4000 mg”
Ingredients
Bulking Agent: Brown Rice Flour, Vege Capsule Shell: Hypromellose (HPMC) Advice Do not exceed the recommended daily dose. Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Discontinue use if any adverse reactions occur. Not intended for use by persons under the age of 18.
From the WeightWorld listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 1 g dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 1 capsule.
What you paid
Optional. At WeightWorld today: £17.49.
“Order by” allows 3 working days’ delivery from WeightWorld and your spare days.
Price history
No price change since 9 October 2026. Checked on 1 day, most recently 9 October 2026.
- Price at every check
- £17.49WeightWorld
- First recorded
- £17.499 Oct
- Checked on
- 1 daysince 9 Oct
Checked once so far, on 9 October 2026.
- First checked at WeightWorld: £17.49
Questions about this product
How much does WeightWorld Irish Sea Moss Capsules cost per 1 g?
55p per 1 g, from £17.49 for 120 servings at WeightWorld, checked on 9 October 2026.
Is it the cheapest sea moss in the UK?
No, it is 4th of 8. High Strength Sea Moss 5000mg at Nutravita works out at 30p per 1 g.
How long does one pack last?
32 days at one 1 g dose. The pack holds 32 g in total.
About WeightWorld
All 124 WeightWorld products, priced per dose
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