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Cheapest Organic Irish Moss on iHerb

Ranked by real cost per 100 mg of Organic Irish Moss — cheapest value first.

Prices updated Jul 25, 2026 · 8 products · Prices in USD

The priciest option here costs about 1,666.7× more per 100 mg of Organic Irish Moss than the best-value pick Vitamatic. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Vitamatic, Irish Sea Moss, 120 Vegetable Capsules
Vitamatic, Irish Sea Moss, 120 Vegetable Capsules
Vitamatic
500 mg6014.990.050View on iHerb →
2
Nature's Craft, Irish Sea Moss, 180 Capsules
Nature's Craft, Irish Sea Moss, 180 Capsules
Nature's Craft
750 mg6024.990.056View on iHerb →
3
Nature's Craft, Irish Sea Moss, 90 Capsules
Nature's Craft, Irish Sea Moss, 90 Capsules
Nature's Craft
750 mg3015.990.071View on iHerb →
4
Healths Harmony, Advanced Sea Moss, 60 Capsules
Healths Harmony, Advanced Sea Moss, 60 Capsules
Healths Harmony
500 mg3012.970.087View on iHerb →
5
Forest Leaf, Certified Organic Sea Moss + Burdock & Bladderwrack, 90 Vegetable Capsules
Forest Leaf, Certified Organic Sea Moss + Burdock & Bladderwrack, 90 Vegetable Capsules
Forest Leaf
750 mg3019.990.089View on iHerb →
6
Nature's Craft, Irish Sea Moss, 30 Capsules
Nature's Craft, Irish Sea Moss, 30 Capsules
Nature's Craft
750 mg109.990.133View on iHerb →
7
MaryRuth's, Sea Moss + Immune & Energy Liposomal, Citrus Berry, 7.6 fl oz (225 ml)
MaryRuth's, Sea Moss + Immune & Energy Liposomal, Citrus Berry, 7.6 fl oz (225 ml)
MaryRuth's
140 mg1524.991.19View on iHerb →
8
Lemme, Organic Sea Moss Liquid Drops, 1 fl oz (30 ml)
Lemme, Organic Sea Moss Liquid Drops, 1 fl oz (30 ml)
Lemme
1 mL3025.0083.33View on iHerb →

How we rank Organic Irish Moss

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.