Collection: Seaweed & Spirulina Supplements
Shop seaweed and spirulina supplements in powder and capsule formats. Explore Kelp Seaweed Powder, Seatrition Pure Seaweed Supplement Capsules and Nutrex Hawaii spirulina, with a choice of package sizes on selected products.
Find Your Preferred Format
- Kelp Seaweed Powder — view the listed 4 oz powder package and product label information.
- Seatrition Pure Seaweed Supplement — seaweed in capsule form, with available package options on the product page.
- Nutrex Hawaiian Spirulina Powder — compare the listed 16 oz and 32 oz powder options.
Compare Ingredients and Serving Information
Kelp, seaweed blends and spirulina are distinct ingredients. Compare each product by its own label rather than assuming the same nutrient content or serving size across the collection. Review the ingredient list, labeled amounts and directions before choosing.
For more background on iodine, nutrition and product differences, read our Seaweed Supplements Guide. Looking for seaweed for cooking? Explore Ribbon Kelp and our Ribbon Kelp Guide.
Browse all Ocean Supplements, or explore Omega-3 Fish Oil Supplements and Marine Collagen Supplements.
