Seagreens® Information Service  0845-0640040 / +44-1444-400403
Seagreens® - the mark of qualityNutritious Food Seaweed

Wherever it is identified as the seaweed ingredient in a product, Seagreens® is your ultimate quality assurance.

The word Seagreens is a trade mark of the Seagreens Trust, Great Britain, registered throughout the EU, UK, USA, and Australia, with applications pending elsewhere.

Setting the standard

In 1997 Seagreens® wild wrack species were the first European seaweeds to be wild harvested according to DEFRA and Soil Association Organic Standards.

These Standards remain concerned with water quality, non-use of pesticides, and environmental sustainability, but alone do not assure consumers of rigorous nutritional quality, contamination, allergens, raw ingredient quality or composition.

Large volumes of old seaweed can be cut and sold into the human food chain, which may even be storm-cast, collected on the shoreline, and rapidly dried at high temperatures.

Small scale artisan harvesting offers no guarantee of cleanliness, consistency, or nutritional composition.

A lot of seaweed is produced on an industrial scale for alginate extraction, horticulure, and more sadly, animal feed.

Seagreens moved onward and upward during the first decade of this century, developing its own methods and standards which today are unparalleled.

Seagreens ingredients have been the subject of the most comprehensive, independent scientific research and analysis anywhere in the world, including comparison with seawed from conventional production.

Seagreens developed the careful selection, monitoring, harvesting, transportation, processing, production, packaging, and international food and medical compliance to its proprietary standard.

So well regarded is this standard that it in 2014 it was chosen as the basis for the Nutritious Food Seaweed quality scheme, developed to provide an international standard of value to consumers and producers alike, in an emerging market for seaweed for human health and consumption. 

In September 2016 Seagreens was Certified under this new, non-governmental Standard developed specifically for the production of all types and species of seaweed.

Seagreens has production in Iceland, Ireland, Norway and Scotland, and is the seaweed ingredient of choice for reputable food and nutrition brands

More than half its production is exported, a promising controbution to the UK eonomy and that of these other counties.

A short history

1997 - Seagreens founded with its first seaweed production for human consumption on the small Norwegian island of Frøya off the coast of Trondheim

1998 - Seagreens becomes Europe’s first Certified Organic fully integrated ‘ocean-to-table’ producer "to get a gram of the best seawed into the daily diet"

2002 - Production began among the Arctic Lofoten islands in partnership with Kjell Petterson, designer of Seagreens' proprietary mechanical harvesting

2004 - Approved by the Biodynamic Association for use in Biodynamic and Organic foods and farming systems in Europe

2007 - Biodynamic Association certification extended to the USA under Biodynamic® and NOP Organic Standards

2008 - British Government sponsors health research into Seagreens® at the UK Centre for Food Innovation, Sheffield Hallam University

2009 - Seagreens (Hebridean Seagreens Ltd) receives international Organic Certification for new harvesting and production in Scotland

2009 - Seagreens new production facilities EU and FDA registered for Food Safety and hygiene with full HACCP quality control procedures

2010 - Segreens receives national awards for research, sustainability, product innovation; independent nutritonal marker research proves outstanding quality

2011 - Founder's inaurgural speech at the Natural History Museum, London, launches the Seaweed Health Foundation for research, standards, and information

2012 - Seagreens certified Allergen Free and Kosher for Passover; ranks "most searched for ingredient" on worldwide Life Science search engine, Innovadex

2012 - Seagreens sponsors the first annual Seaweed for Health event at the Royal Botanic Garden at Edinburgh in co-operation with the Seaweed Health Foundation 

2013 - Peer reviewed research concludes that Seagreens® in a product of Napiers of Edinburgh can provide iodine sufficiency with no adverse effect on thyroid

2014 - 3 research publications in peer reviewed journals: Journal of Appetite (2011), British Journal of Nutrition (2014), Journal of Applied Phycology (2015)

2015 - The Seagreens Trust established to carry forward the work of Seagreens International Partnership® and continue support for the Seaweed Health Foundation

2016 - Seagreens Certified under the Nutritious Food Seaweed quality assirance scheme and standard by the Biodynamic Association



NFS Certification means assurance on nutrition, contaminants, environment, sustainability. The world's highest standard of seaweed production.
Certified Orgniic by the Biodynamic Association GB-ORG-6 - European Organic logo introduced 2010
Certified Kosher for Passover by the London Beth Din, Court of the Chief Rabbi
Certified Organic for our customers in the USA
USA Food & Drug Administration
Seagreens analytical data is conducted at independently accredited labs

Seagreens® ingredient products are processed under full HACCP quality control procedures, finished and packed for distribution in certified BRC (British Retail Consortium) accredited A grade, FDA registered food facilities.


Many of our manufacturing customers, like Waitrose Duchy Organic, Pukka Herbs, Viridian Nutrition, Marine Therapy Solutions and others around the world, conduct their own audits of our production and scientific data.


Products for consumers and healthcare practitioners are produced in Class 9 pharmaceutical clean rooms and packed and bottled in ISO 9001, MHRA, BRC, and FDA approved facilities. 


All capsules used are of 100% vegetable origin and additionally internationally Certified Kosher Circle U under the supervision of the Kashruth Division of the Union of Orthodox Jewish Congregations of America and Halal by the Halal Monitoring Committee.


All Seagreens products are certified allergen and pollutant free, organic, kosher, raw, vegan and halal compliant.


But it is Seagreens' proprietary harvesting and production methods and technologies* which ensures its outstanding nutritional profile, and its original nutrition research and independent analytical data which sets it apart.


This extensive accreditation covers the production of Seagreens in the British Isles and the Nordic region, and its distribution and retail worldwide.


Seagreens pure, certified ingredients are increasingly used, and identified on pack, by food and nutrition product manufacturers in more than a dozen countries - part of Seagreens International Partnership, which is administered in the interests os our Partners and Customers by the Seagreens Trust.


*Patents Pending

Certification downloads

Nutritious Food Seaweed Standard (Biodynamic Association)

Organic Certification EU and USA (Biodynamic Association UK 6: 398)

Kosher Certification for Seagreens consumer products and ingredients

Kosher Certification for Seagreens 'The Mineral Salt'

BRC Certificate of Compliance for GSFS