Below is a list of all known varieties for Bladderwrack. Click on a variety name to view more detailed nutrient and sourcing information.
| Variety Name | Description |
|---|---|
| Bladderwrack (Capsules) | The powdered form, encapsulated for use as a dietary supplement. |
| Bladderwrack (Cut & Sifted) | The dried, chopped fronds of the seaweed, sold as a bulk herb for making teas or infusions. |
| Bladderwrack (Extract) | A powdered or liquid extract, often standardized for its iodine and fucoidan content. |
| Bladderwrack (Fluid Extract) | A concentrated liquid herbal extract (tincture) of *Fucus vesiculosus*, used as a dietary supplement. |
| Bladderwrack (Glycerite) | A non-alcoholic liquid extract of Bladderwrack, made using glycerin. Used as a supplement. |
| Bladderwrack (Pickled) | The fresh, young fronds or bladders, pickled in a vinegar brine. A traditional preparation in some coastal areas. |
| Bladderwrack (Powder) | The dried, ground seaweed, sold as a supplement for its high iodine content. Strong, oceanic flavor. |
| Bladderwrack (Tea Cut) | The dried, cut-and-sifted plant, sold for making a briny, mineral-rich herbal tea. |
| Bladderwrack (Tincture) | An alcohol-based extract of Bladderwrack, sold in dropper bottles as an iodine supplement. |
| Channelled Wrack (Pelvetia canaliculata) | A small brown seaweed found very high on the shore, with channelled fronds that curl in the sun. |
| Fucus evanescens | A related species of brown seaweed (wrack) found in the North Pacific, also used for its high mineral and fucoidan content. |
| Fucus serratus (Serrated Wrack) | A related brown seaweed, easily identified by its saw-toothed edges and lack of air bladders. Also used for supplements. |
| Fucus spiralis (Spiral Wrack) | A related brown seaweed that grows high on the shore, characterized by its spirally twisted fronds. |
| Fucus vesiculosus (Species) | The primary, most common species of Bladderwrack, defined by its paired air bladders. |
| Knotted Wrack (Ascophyllum nodosum) | A very common brown seaweed with single, large air bladders. Harvested commercially for alginates, fertilizer, and supplements. |
| Sea Oak (Halidrys siliquosa) | A brown seaweed related to Bladderwrack, distinctive for its pod-like air bladders that resemble small seed pods. |