Next-generation nutrition from the ocean. Powered by science, trusted by producers.

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SeaGraze® supports efficient livestock growth and sustainable production with a natural edge.

USDA Organic badge with green and white text, brown border, and stylized farmland design.

The only USDA Organic antimethanogenic additive

Symbrosia aquaculture icon: red seaweed on blue waves

Grown sustainably in Hawai’i

Symbrosia nutrients icon: green leaf with small sparkles

Rich in protein, minerals, amino acids, and antioxidants

Four colored circles featuring line art of different farm animals: a cow in orange, a steer in red, a sheep in light blue, and a goat in green.

Safe for all livestock

SeaGraze® for Beef ➜
SeaGraze® for Dairy ➜

Grow what matters. Cut what doesn’t.

Text list highlighting the nutritional benefits of a product, including high protein content, bioavailable minerals from the ocean such as calcium, magnesium, and phosphorus, an amino acid profile, increased mineral uptake, and polysaccharides for gut health and heat stress protection, each with check marks.
A minimalist illustration of a cow's head with brown fur, beige horns, black eyes, and a pink nose, accompanied by two red butterfly-shaped symbols.

Our Partners

  • Logo with a stylized salmon inside a rectangular border and the word 'HATCH' in gray capital letters on a black background.
  • Navy blue and light gray NOAA logo featuring stylized seagull with outstretched wings inside a circle.
  • Close-up of a compact fluorescent light bulb with a spiral shape, emitting soft light, against a plain background.
  • The word 'SOLVE' written in large gray letters on a black background.
  • Logo with the letters NSF inside a gear symbol on a dark background
  • University of Minnesota logo with a large M and the text 'University of Minnesota' underneath.
  • Logo for Solar Impulse Foundation on a black background.
  • Yale logo on a black background
  • USDA logo with stylized wheat and land graphic on a black background.
  • Logo of the Massachusetts Institute of Technology with a black background and gray text.
  • Unicef Logo
  • Sea Grant logo with a bird flying above the text

Shop our Merch!

Don’t have cows but want to support our mission? All proceeds go to our limu restoration project!

Limu Kohu Hat Limu Kohu Hat Limu Kohu Hat
Limu Kohu Hat
$28.00


• 100% organic cotton
• Fabric weight: 8 oz/yd² (271 g/m²)
• 3/1 twill
• Unstructured
• 6 panel
• Matching sewn eyelets
• Self-fabric adjustable closure with a brass slider and hidden tuck-in
• Blank product sourced from China

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt Oversized Native Limu of Hawaiʻi Color Shirt
Oversized Native Limu of Hawaiʻi Color Shirt
$35.00

Symbrosia x Prowlanu Design

• 100% carded cotton
• Fabric weight: 7.1 oz. /yd. ² (201.28 g/m²)
• Garment-dyed, pre-shrunk fabric
• Boxy, oversized fit
• Dropped shoulders
• Wide neck ribbing
• Tear-away label

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

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As Featured In

  • Red background with the white Forbes logo in the center.
  • The Washington Post logo in white text on a red background.
  • Red background with white text reading 'THE VERGE'
  • Logo for Honolulu Civil Beat with red background, white text, and 'CB' inside a circle.
  • Logo for The Fish Site with a red background and a stylized fish icon.