A pioneering marine biotechnology company based in West Cork, Ireland, has unveiled the country’s first health supplement range made from native red seaweed, signaling a major step forward for Ireland’s emerging seaweed economy.
Developed by Pure Ocean Algae, headquartered on the Beara Peninsula, the new nutraceutical line has officially launched in Ireland and the United Kingdom, with expansion plans targeting European Union and Asian markets later in 2026.

Pure Ocean Algae location
The product range features three capsule-based supplements: a hair and nail revitaliser, a cognitive-support formula designed to enhance focus and memory, and a hormone-balance supplement. All products are free from artificial additives, aligning with growing consumer demand for natural and marine-based health solutions.
The launch follows several years of research, development, and investment led by founder and CEO Michael O’Neill, who has positioned the company at the forefront of Europe’s seaweed cultivation industry. Founded in 2019, the company emerged after O’Neill—an engineer and former commercial fisherman—shifted his focus to sustainable aquaculture.

Photo: Pure Ocean Algae
Recognizing seaweed as a regenerative crop that requires no fertilizer, freshwater, or land, O’Neill saw an opportunity to generate both environmental and economic value while creating jobs in coastal communities.
At the core of the innovation is Palmaria palmata, commonly known as Dulse or Dillisk, a red seaweed traditionally harvested in the wild. Pure Ocean Algae has developed Ireland’s first fully integrated production system for this species, managing everything from hatchery cultivation to offshore growing and final processing. This ensures consistent quality and traceability—key requirements in nutraceutical manufacturing
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Photo: Pure Ocean Algae
Red seaweeds like Dulse are increasingly prized for their bioactive compounds, including natural proteins, amino acids, and essential minerals such as iodine, magnesium, and iron, as well as antioxidants and micronutrients.
Over the past two years, the company has significantly increased its investment in research and development, including human trials conducted in collaboration with the University of Limerick. Early findings highlighting benefits for metabolic and digestive health helped drive the company’s move into the functional foods and supplements market.
“The red seaweed we cultivate is vastly different from wild-harvested dulse,” O’Neill explains. “Because we control every stage of its development, we can enhance its bioactive properties and ensure a clean, consistent ingredient suitable for wellness applications. This is the foundation of our new product range.”
He added: “Ireland’s seaweed farming sector is still in its infancy, but with international demand for marine-derived ingredients across food, cosmetics, pharmaceuticals, and dietary supplements, there is huge potential.”
The company has already secured significant private investment—figures undisclosed—which will fund the expansion of sea cultivation sites across West Cork and scale up hatchery operations to enable year-round production.
By combining biotechnology with deep expertise in coastal ecosystems, Pure Ocean Algae has attracted growing interest from researchers, investors, and industry partners across Europe and Asia.
“Seaweed is one of the world’s most sustainable crops,” O’Neill says. “By focusing on high-functionality red seaweeds and developing premium nutraceutical ingredients, we can help transform coastal economies while bringing science-driven products to consumers.”
Richard Donnelly, Interim CEO of Bord Iascaigh Mhara (BIM), Ireland’s seafood development agency, highlighted the broader significance of the launch: “This launch is an excellent example of how Irish marine innovation is moving up the value chain. Pure Ocean Algae is showing how sustainably farmed native seaweed, backed by strong research and commercial ambition, can create high-value products for global health and wellness markets. It highlights the significant opportunity for coastal communities when science, sustainability and enterprise come together.”
For O’Neill, the milestone represents both a commercial success and a long-term vision for Ireland’s role in the global wellness industry.
“This is just the beginning,” he says. “We’re building a platform for Ireland to become a global leader in seaweed-based wellness. The potential is enormous – and we’re only starting to tap into it.”