Is Spirulina Extract Banned? EU vs US Status, Risks & Where It Hides
TL;DR: Spirulina Extract is allowed in the EU but allowed in the US (color).
Also called phycocyanin. CAS 8049-31-8.
Other names: blue spirulina, spirulina concentrate, phycocyanin, E3 in some markets
Is Spirulina Extract banned in the EU?
| EU status | Allowed |
|---|---|
| US status | Allowed |
| Risk level | low |
| Where it shows up | Sweetworks Blue Confetti, Natural Candy Store products, Various natural blue frosting brands, Blue-colored ice pops, Healthy snack brands |
| CAS number | 8049-31-8 |
What is Spirulina Extract?
Spirulina extract is a blue-green color derived from the cyanobacterium Arthrospira platensis (spirulina). The active coloring compound is phycocyanin, a fluorescent blue protein-pigment complex. The FDA approved spirulina extract as a color additive for candies, confections, and chewing gum in 2013, making it a popular natural alternative to FD&C Blue No. 1.
Why is Spirulina Extract used in food?
Provides blue-to-blue-green natural coloring in candies, frosting, popsicles, and beverages as a replacement for synthetic blue dyes.
Is Spirulina Extract dangerous? Documented risks
Spirulina extract is safe at food coloring use levels. Spirulina as a supplement is generally well-tolerated; however, it can contain trace amounts of heavy metals and potentially hepatotoxic cyanotoxins if harvested from contaminated water bodies. Commercial food-grade spirulina extract is purified and subject to quality standards that minimize these risks. No adverse effects from spirulina-derived food coloring have been documented in peer-reviewed literature.
Common US products containing Spirulina Extract
- Sweetworks Blue Confetti
- Natural Candy Store products
- Various natural blue frosting brands
- Blue-colored ice pops
- Healthy snack brands
How to avoid Spirulina Extract: safer alternatives
Butterfly pea flower extract provides blue coloring. Indigo carmine (E132) is a synthetic alternative.
Frequently asked questions about Spirulina Extract
Is spirulina extract vegan?
Yes — spirulina is a cyanobacterium (blue-green algae), not an animal product.
Is spirulina extract safer than Blue 1?
Many consumers prefer it as a natural alternative. It does not carry the hyperactivity warning required in the EU for synthetic dyes.
Can spirulina contain toxins?
Wild spirulina can contain cyanotoxins if harvested from contaminated sources. Food-grade commercial extracts are tested and purified.
What products use spirulina extract for color?
Natural blue candies, some ice cream brands, popsicles, and frosting marketed as 'natural' or 'organic.'
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Sources
- FDA Approval of Spirulina Extract as Color Additive — FDA
- Safety and efficacy of spirulina algae as feed additive — EFSA
Our scores are never influenced by brands. Last updated 6/11/2026.