About Sea Theory
Irish marine science. A new approach to haircare.
Sea Theory began with research into Irish seaweed and its potential in haircare. Our first product, ST¹, brings that work into a daily capsule.
Our Beginnings.
From Irish seaweed to ST¹
Our story starts on Ireland’s west coast, with research into the molecules found in native seaweed.
That work led to Maragen™, the marine bioactive at the heart of ST¹. Scientists studied its effects on dermal papilla cells, which help regulate the hair growth cycle.
ST¹ combines Maragen™ with selected vitamins, minerals and L-Cystine in one daily capsule.
A daily approach to haircare
ST¹ is our first product. One daily capsule containing powerful marine bioactives, L-Cystine and selected vitamins and minerals.
Irish origins. Scientific curiosity.
Science, nature and purpose
Behind Sea Theory
We bring together expertise in marine science, nutrition and product development, with a shared interest in understanding what seaweed can contribute to haircare.
Harnessing the power of the ocean
Why Seaweed?
Seaweed contains a wide range of naturally occurring compounds. Studying them helps us identify ingredients worth investigating for hair health.
Our commitment runs deep
Sea to Self
We are committed to circularity and to becoming a carbon positive company. This plays a key role in all decisions we make, from Sea to Self. Every element is considered, from our choice of suppliers, the processes we use, the packaging we choose for our various products, and the commitment we make to cultivating our own seaweed at our hatchery on the Atlantic coast.
