One of the most common questions we hear is: Is sea moss the same as Irish moss or Gigartina?
With so many products labeled as “sea moss,” it’s no surprise there’s confusion. The terms are often used interchangeably, even though they refer to different red seaweed species with distinct origins, growing conditions, and characteristics. Let’s clear things up.
What Is Sea Moss?
“Sea moss” is not a single species. It’s a general term used to describe several types of red marine algae, commonly from the genera Gracilaria, Kappaphycus, and Eucheuma. These sea moss species are typically cultivated in tropical and subtropical regions, especially in warm ocean waters.
Because sea moss is an umbrella label rather than a scientific classification, products sold under this name can vary widely in texture, quality, and nutritional profile. We do not harvest or sell these tropical sea moss varieties.
What Is Irish Moss?
Irish moss refers specifically to Chondrus crispus, a red algae species native to the North Atlantic Ocean. It grows along the rocky coastlines of eastern Canada and parts of Europe, where it is mostly wild-harvested.
Irish moss is well known for its natural carrageenan content, which has long been used in traditional food preparation and wellness practices. While Irish moss is closely related to Gigartina, it does not grow on the Northern California coast, and we do not harvest or sell Irish moss.
What Is Gigartina?
Gigartina is a specific group of red seaweeds, and the species is Gigartina papillata (also known as Mastocarpus papillatus). This red marine algae grows abundantly along the Northern California coastline, where it thrives in cold, clean Pacific waters.
Another related species, Gigartina skottsbergii, is wild-harvested in Chile and Argentina. While closely related, it is distinct from the Gigartina species we harvest and sell.
Gigartina vs Irish Moss: Key Similarities
Gigartina and Irish moss are biologically related and share similar types of carrageenans, naturally occurring polysaccharides found in red algae. These compounds have been widely studied and are known for their functional and supportive properties, including traditional use for immune, respiratory, and digestive wellness.
While there are minor nutritional and compositional differences between Gigartina and Irish moss, they are generally considered very similar in overall function.
How to Use?
You can sprinkle it over meals, blend it into smoothies, add it to soups, or mix it with water or juice. One level teaspoon provides approximately 4 grams of red marine algae.
When stored properly in a cool, dry place away from light and heat, both the powder and capsules can retain quality for up to three years. As with all seaweeds, trace amounts of naturally occurring shellfish or crustaceans may be present due to the marine environment.
