Made in Denmark
Marine Collagen
from Fish Bone
The first of its kind.
Every marine collagen on the market is derived from fish skin. We've developed proprietary technology to extract collagen peptides from wild-caught fish bone – delivering a richer collagen profile, natural mineral synergy, and a fundamentally cleaner source.
The difference
Why fish bone matters
01
Richer collagen profile
Fish bone contains collagen types I, II, VI, XI, and XXII – a diversity that fish skin simply cannot provide. These specialized types work in concert to support joint integrity, bone structure, and connective tissue health. With a naturally low molecular weight profile, the peptides are designed for efficient uptake and fast dispersion in the body.
Based on: Swound et al., "A Comparative Study of Collagen Proteins in Skin, Bones, and Guts," Journal of Aquatic Food Product Technology, 2024
02
Natural mineral synergy
Fish bone naturally combines collagen with calcium, phosphorus, and magnesium. It also contains mineral-binding peptides that support calcium uptake and complement bone-focused formulations. Research shows these nutrients are more effective when delivered together with collagen peptides.
Based on: "Collagen Peptides-Minerals Complexes from the Bovine Bone," Applied Sciences, 2023; "Efficacy of collagen peptide supplementation on bone and muscle health," Frontiers in Nutrition, 2025
03
Clean and traceable source
Wild-caught, fully traceable, and free from any land animal. Halal, kosher, and pescatarian friendly – without the BSE risk and contamination concerns associated with bovine collagen.
Mermaid Proteins
Product specifications
A pure, versatile collagen ingredient designed to integrate seamlessly into your formulation.
2–5 kDa
Peptide size
>90%
Collagen purity
>95%
Digestibility
- Appearance
- Pure white powder
- Taste & odor
- Fully neutral
- Source
- Wild-caught fish bone
- Origin
- European, fully traceable
- Production
- Made in Denmark
- Suitable for
- Halal · Kosher · Pescatarian
More than an ingredient. A better source.
Use cases
Target applications
Our collagen peptides integrate seamlessly into a wide range of supplement and functional food formats.
Joint health
Supplements targeting mobility, flexibility, and joint comfort.
Bone health
Formulations for bone mineral density and osteoporosis prevention.
Beauty from within
Nutricosmetics for skin hydration, elasticity, and anti-aging.
Sports nutrition
Recovery supplements for connective tissue repair and athletic performance.
Functional beverages
Protein-enriched drinks and ready-to-mix powder formats.
Circular economy
From sidestream
to solution
We process underutilized, high-value marine sidestreams into premium collagen peptides. Every batch starts with fish bone that would otherwise go to waste – turning a byproduct of the fishing industry into a traceable, high-performance ingredient.
Upcycled from fishing industry sidestreams
Wild-caught, sustainably sourced
Fully traceable supply chain
European origin, processed in Denmark
About us
A Danish biotech startup
At BlueLoop Protein, we drive the blue circular economy by unlocking the maximum value of underutilized marine side-streams. Based in Denmark, we specialize in advanced upcycling of marine resources.
Rather than applying a one-size-fits-all approach, we analyze and process each unique side-stream to find its ideal application. By transforming these resources into premium, functional protein ingredients, we focus on high-value applications that respect and maximize what our oceans provide.
BlueLoop is on a mission to help close the loop toward a zero-waste, high-yield blue economy.
