Why we chose Ulva
1 June 2026 · Terralgea
Ulva, or sea lettuce, was not an idea someone had in a meeting room. It has grown in the shallows and ended up on plates along the coast for thousands of years, from the Nordics to East Asia. When we set out to make a supplement, the question was never what we could add. It was how little we could touch.
Only algae
A Pure Ulva capsule contains Ulva fenestrata. That is the whole recipe. No fillers, no blend to dress up the label. Three a day, 625 mg in each. The algae is high in iodine and a source of vitamin B12, simply because the nutrition is already there. We did not put it in.
It does two things at once
This is where Ulva gets interesting. What makes the algae nutrient-rich is the same thing that makes the water around it cleaner. As it grows, it pulls nitrogen out of the sea and gives off oxygen.
That double use is what Terralgea Restore builds on. Pure Ulva is the crop we bring in, cultivated in the sea rather than taken from wild stocks. Restore points the other way: putting algae back where the coast needs them. The work is early, but the direction is set.
We say no more than we can show
Every batch is tied to one place and one date, and tested at Eurofins before it goes out into the world. If you want the analysis for your particular tin, we send it. That is where we set the bar. Not on price, but on what we can actually document.