Pure Seaweed, natural balanced
Pure Power, all effects come from seaweed alone
KEYO™ Enzymatic Seaweed Extract is a 100% organic biostimulant derived from Ascophyllum nodosum and processed exclusively via a proprietary full-enzymatic hydrolysis technology. Unlike chemical or cold-press methods, our process converts alginic acid into Alginate Oligosaccharide (AOS) in situ, delivering higher bioactivity, better nutrient absorption, and superior crop stress tolerance. Certified for organic input and trusted by formulators in over 30 countries.

| Feature | Full Enzymatic Hydrolysis (KEYO™) | Chemical Extraction | Cold-Press Method |
|---|---|---|---|
| Principle | Precise enzymatic action gently breaks down cell walls | Harsh chemicals and high heat degrade raw material | Physical pressure breaks cells |
| Bioactivity | Optimal – preserves natural growth regulators & polysaccharides | Low – severe damage to active components | High – avoids thermal damage |
| Key Advantage | Superior bioactivity & purity; eco-friendly | Low cost; fast production | Good balance; no chemical residues |
| Result | Rich in small-molecule oligosaccharides; superior absorption efficiency | Incomplete active spectrum; weaker effect | Large molecules; lower extraction concentration |
Read the full technical comparison →

| Attribute | KEYO™ Ascophyllum nodosum | KEYO™ Ecklonia maxima | KEYO™ Laminaria japonica (Fresh) |
|---|---|---|---|
| Raw Material Form | Dried seaweed | Dried seaweed flakes | Fresh kelp (undried) |
| Time from Harvest to Product | Several days | Several days | Under 24 hours |
| Primary Strength | Abiotic stress tolerance, fruit quality | Root initiation, vegetative growth | Balanced bioactives, all-purpose |
| Key Differentiator | Balanced betaines & growth regulators | High auxins & cytokinins | Highest polyphenol content |
| Bioactive Retention | High | High | Highest (fresh-source advantage) |
| Best Application Timing | Flowering, fruiting, stress events | Germination, transplanting, vegetative stage | Full-cycle use; general crop health |
| Raw Material Origin | North Atlantic | South Africa | China (cultivated fresh kelp) |
| Production Process | Identical 100% enzymatic hydrolysis – full AOS conversion | ||


Qingdao MacroAlga Co., Ltd. is a technology commercialization enterprise founded by the Qingdao Institute of Bioenergy and Bioprocess Technology (CAS). We specialize in enzymatic biostimulant raw materials and hold core patents in oligosaccharide degradation and enzyme production.
Our products are exported to over 30 countries across North America, Europe, Latin America, Asia, and Africa.