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Irish sea moss with herbal tea infusion

Along Ireland’s western coast, where cold Atlantic water meets the rocks, grows Chondrus crispus: carrageen moss.

A sprig of red seaweed on grey sand

A long tradition in Irish homes

Coastal families dried carrageen in the sun and kept it in the kitchen press all year. It was simmered with milk into carrageen pudding, and brewed into warm drinks with honey and lemon when the weather turned. Its name is thought to come from Carrigeen, “little rock”.

Much of what is sold as “sea moss” is a different seaweed from warmer waters. True Irish moss grows slowly in the cold, clean North Atlantic, which gives it its character. As a seaweed it takes up minerals from the sea; the iodine and magnesium in each can are listed below.

What’s in Irish sea moss, and what each mineral does in the bodyMineral levels in seaweed vary with season and harvest site. See our nutrition tables for exactly what’s in each can.
MineralRole in the bodySimple explanationSource
IodineThyroid hormones (T3, T4)Contributes to normal thyroid function and normal cognitive functionEU health claim, Reg. 432/2012
MagnesiumEnzyme helper in over 300 reactionsContributes to normal muscle function and the reduction of tiredness and fatigueEU health claim, Reg. 432/2012
CalciumBones, teeth and blood clottingContributes to the maintenance of normal bones and teeth, and normal muscle functionEU health claim, Reg. 432/2012
IronHaemoglobin in red blood cellsContributes to normal oxygen transport in the body and normal formation of red blood cellsEU health claim, Reg. 432/2012
PotassiumFluid balance and nerve signalsContributes to normal muscle function and the maintenance of normal blood pressureEU health claim, Reg. 432/2012
ManganeseEnzymes and connective tissueContributes to the maintenance of normal bones and normal energy-yielding metabolismEU health claim, Reg. 432/2012
ZincImmune cells and skin repairContributes to the normal function of the immune system and the maintenance of normal skinEU health claim, Reg. 432/2012
CopperIron transport and connective tissueContributes to normal iron transport in the body and normal function of the immune systemEU health claim, Reg. 432/2012

The potential in Mara and what we’re learning in the lab

We don’t just want Mara to taste good. We want to understand what’s in it. Working with our science partners at Teagasc, Ireland’s Agriculture and Food Development Authority, we tested both Mara blends against specific enzymes in the lab. In early lab work, Mara partly inhibited COX-1 and COX-2, two enzymes that researchers study closely.

When your body responds to injury or stress, two enzymes called COX-1 and COX-2 help produce the signals that cause swelling and soreness. They’re the same enzymes that common painkillers work on.

COX-1 and COX-2 are two versions of an enzyme called cyclooxygenase. Both do the same basic job: they turn a fat found in cell walls into hormone-like messengers called prostaglandins. Where they differ is when they work and what those messengers do.

COX-1 is the “everyday maintenance” enzyme. It’s switched on all the time in most of the body. The prostaglandins it makes protect the stomach lining, keep blood flowing to the kidneys, and help platelets clump together so blood can clot.

COX-2 is the “emergency response” enzyme. It’s usually quiet, but it ramps up quickly when tissue is injured or infected. Its prostaglandins cause the redness, swelling, pain and fever of inflammation. That response helps healing in the short term, but it causes problems when it lingers.

Why tea

Herbal teas have been enjoyed for centuries, both for their restorative qualities and as part of calming and uplifting daily rituals. Research suggests many herbal teas contain antioxidant and anti-inflammatory compounds that may help support digestive health. Each tea blend creation is meticulously crafted, not just for flavour, but for purpose. Providing extra benefit with a clean and natural taste

What is in the tea, and what the research says
IngredientKey compoundsSimple explanationSource
Fennel seedsAnetholeMay help ease digestion and gut comfortScientific review: Fennel (2025)
Ginger rootGingerolsMay help support digestion and healthy circulationScientific review: Ginger (2020)
HibiscusAnthocyaninsMay help balance inflammation and support overall wellbeingScientific review: Hibiscus (2022)
Lemon balmRosmarinic acidMay help calm the mind and bodyClinical study: Lemon Balm & Mood (2024)
LemongrassCitralMay help support digestion and a refreshed feeling
Nettle leafMinerals, polyphenolsMay help replenish minerals and support inflammation balanceScientific review: Herbal Polyphenols (2019)
RooibosAspalathinMay help support antioxidant recovery after daily strainScientific review: Rooibos (2023)

Where it comes from

Lemongrass Citrus

Bright, green and uplifting. Zesty lemongrass and lemon verbena lead, fennel adds a gentle hint of anise, and nettle rounds it off.

Ingredients

Water, organic herbal teas (lemongrass 0.5%, lemon verbena, fennel, nettle), citric acid, salt, stevia, natural flavour, Irish sea moss (Chondrus crispus 0.6%).

Allergen: May contain traces of crustaceans and molluscs.

Nutrition per 100 ml
Energy8 kJ / 2 kcal
Fat0 g
of which saturates0 g
Carbohydrates0 g
of which sugars0 g
Protein0 g
Salt0.075 g
Iodine24.2 µg (16.1% NRV)
Magnesium21.5 mg (5.7% NRV)

Rooibos Berry

Warm, vibrant and a little bit spicy. Smooth rooibos, lively ginger, tart hibiscus and a fresh lemon verbena finish.

Ingredients

Water, organic herbal teas (rooibos, lemon verbena, ginger, hibiscus), citric acid, salt, stevia, natural berry flavour, Irish sea moss (Chondrus crispus).

Allergen: May contain traces of crustaceans and molluscs.

Nutrition per 100 ml
Energy8 kJ / 2 kcal
Fat0 g
of which saturates0 g
Carbohydrates0 g
of which sugars0 g
Protein0 g
Salt0.075 g
Iodine29.6 µg (19.7% NRV)
Magnesium32.9 mg (8.8% NRV)

NRV: nutrient reference value. 330 ml per can. Zero sugar, caffeine free, vegan.