Spirulina

Spirulina is a commercial name commonly applied to cultivated cyanobacterial biomass identified in regulatory records as Arthrospira platensis or Spirulina platensis; current nomenclature sources may treat that name as a synonym of Limnospira platensis. It is not interchangeable with Arthrospira maxima, Aphanizomenon flos-aquae, other blue-green algae, wet biomass, dried whole biomass, powder, flakes, granules, tablets, capsules, formulated foods or phycocyanin-rich extracts. Comparable records preserve the declared taxon and strain or culture identifier, inoculum and identification method, cultivation system, culture water and inputs, harvest, washing, dewatering, drying, milling and extraction history, form and composition, microcystin and other cyanotoxin evidence, metals, microbiology, residues and foreign material, additives and carriers, intended use and destination basis, processor, package, lot and custody, quantity, currency, Incoterm, destination, delivery window and information vintage before offers are compared.

Editorial evidence reviewedReviewed 2026-09-18Release 2026-09-19-batch-230
Market value
$1.4B
Producing countries tracked
4
Grading systems
1
Active supply risks
3
Trade corridors
3
Latest reviewed evidence

LPSN records Arthrospira platensis as a validly published name currently treated there as a synonym of Limnospira platensis and warns that some deposits have been incorrectly represented as type strains. FDA GRN 394 concerns dried biomass of Arthrospira platensis, also known as Spirulina platensis, for specified food uses at 0.5 to 3 grams per serving; FDA's no-questions response is notice- and use-specific and notes that some uses may require color-additive authorization. FDA's blue-green-algae guidance explains that cyanobacterial products can be contaminated by microcystin-producing organisms and recommends harvest, water, slurry and finished-lot testing with validated methods and certificates of analysis. ANSES identifies cyanotoxins, bacteria and trace metal elements as contamination risks, while Health Canada records product- and raw-material microcystin tolerances. The European Commission separately concluded that ordinary Arthrospira platensis is not novel in the EU but a silicon-enriched preparation raises a distinct regulatory question. These are nomenclature, regulatory, safety and process references—not certificates for an offered lot, health-benefit evidence, current availability or a live delivered price.

FDA GRN 394 intended-use lower level
0.5
grams dried Arthrospira platensis biomass per serving, lower level · FDA GRN 394 closed 2012-06-04; inventory accessed 2026-09-18
FDA GRN 394 intended-use upper level
3
grams dried Arthrospira platensis biomass per serving, upper level · FDA GRN 394 closed 2012-06-04; inventory accessed 2026-09-18
ANSES-cited WHO microcystin tolerable daily intake
0.04
micrograms per kilogram body weight per day · ANSES Opinion 2014-SA-0096, adopted 2017-06-27
Health Canada finished-product microcystin tolerance
0.02
micrograms microcystin-LR per kilogram body weight per day · Health Canada cyanobacterial-toxin guidance accessed 2026-09-18
Health Canada cyanobacterial raw-material tolerance
1
part per million microcystin · Health Canada cyanobacterial-toxin guidance accessed 2026-09-18
FDA microcystin-method validation lower fortification level
0.25
micrograms per gram in supplement matrices · FDA-authored LC-MS/MS method publication, 2015
FDA microcystin-method validation upper fortification level
2
micrograms per gram in supplement matrices · FDA-authored LC-MS/MS method publication, 2015
FDA microcystin-method limit-of-quantitation upper reference
0.084
micrograms per gram; reported range 0.018 to 0.084 · FDA-authored LC-MS/MS method publication, 2015

Spirulina identity begins with the declared cyanobacterial taxon and strain

FDA's GRAS inventory identifies dried Arthrospira platensis biomass as also known by Spirulina platensis, while LPSN currently treats Arthrospira platensis as a synonym of Limnospira platensis and notes strain-deposit pitfalls. Commercial naming and taxonomy can therefore diverge. Atlas retains the name as declared, nomenclatural authority and date, strain or culture identifier, supplier culture record and identification method rather than silently replacing one name or treating colour and spiral morphology as sufficient identity proof.

Wet biomass, dried biomass, powder, tablets and extracts stay separate

Harvested wet biomass contains culture water and has different stability and mass than washed or dewatered paste. Drying produces whole biomass that may be sold as flakes, granules or powder; tableting, encapsulation and formulation can add carriers or other ingredients; extraction can isolate phycocyanin-rich colour material or other fractions. FDA records whole dried biomass and enriched extract in separate GRAS notices. Atlas records the exact stage, dry-matter basis, particle size, additives, extraction yield and formulation and never transfers a whole-biomass result or price directly to an extract or finished dosage form.

Culture water, inoculum and harvest define the production record

Controlled ponds and closed photobioreactors differ from natural-lake harvests in inoculum control, exposure, mixing, nutrients, water source and contamination pathways. FDA's blue-green-algae guidance calls for examining harvest sites and testing water, harvested material, slurry and finished lots where microcystin contamination is possible; ANSES stresses water quality, inoculum selection and control of production stages. Atlas retains cultivation system and location, water and input specifications, inoculum and culture history, monitoring, harvest date, washing, dewatering, drying parameters, sanitation and lot genealogy.

Microcystins require exact-lot testing and a destination basis

Microcystins cannot be established by sight, smell or taste. FDA recommends validated testing able to address multiple variants, confirmation where appropriate, certified laboratories and a certificate of analysis for every lot or batch. ANSES cites a WHO tolerable daily intake of 0.04 micrograms per kilogram body weight per day and calls for a spirulina-supplement threshold that accounts for other dietary exposure; Health Canada records a separate finished-product daily tolerance and a one-part-per-million raw-material tolerance. Atlas keeps analytes, method, recovery, detection and quantification limits, laboratory, sample and lot, serving or use basis, result and applicable destination rule together rather than treating any one reference as a universal pass mark.

Metals, microbiology and other contaminants remain lot specific

ANSES identifies trace metal elements, cyanotoxins and bacterial contamination as relevant risks. Cultivation water, nutrients, open-air exposure, harvest, washing, drying, milling, storage and formulation can also affect pathogens, indicator organisms, foreign cyanobacteria, residues, moisture and stability. Atlas records the destination-specific specification, sampling plan, arsenic, lead, cadmium, mercury and other required analytes, microbiological panel, pesticide or process residues, foreign matter, method, result, uncertainty, laboratory and test date for the exact lot; a supplier statement or species name does not replace testing.

Ordinary biomass, enriched preparations and intended uses can follow different rules

The European Commission's Article 4 conclusion says ordinary Arthrospira platensis is not considered novel in the EU while treating silicon-enriched spirulina as a distinct preparation with a separate regulatory issue. FDA GRN 394 addresses named conventional-food uses and levels and cautions that some uses may require color-additive authorization. Dietary supplements, conventional foods, feed, colour uses and enriched or extracted preparations can therefore require different evidence. Atlas retains destination, intended use, formulation, use level, label basis and applicable authorization rather than extending one dossier to every product or market.

Origin, processing and custody remain separate traceability fields

The strain may be maintained in one country, biomass cultivated and harvested in another, dried and milled elsewhere, then extracted, formulated or packed at further facilities. An exporter or packer address does not prove culture origin, water controls or processor identity. Atlas preserves culture and cultivation site, harvest and processing facilities and dates, lot splits and merges, drying and milling lots, extract or formulation batch, package and seal, warehouse, transporter, certificates and custody events from biomass through the offered product.

Nutrition, health, colour and sustainability claims need their own proof

Protein, pigment, vitamin, mineral, antioxidant, immune, performance or disease-related statements answer different questions and can trigger destination-specific composition, nutrition-claim, health-claim, supplement, drug or color-additive rules. ANSES also cautions that spirulina is not a reliable vitamin B12 source for people avoiding animal products because much may be an inactive analogue. Atlas does not infer health benefit, nutrient availability, organic status, low-impact production or responsible sourcing from the word natural, blue-green algae, a dark colour or a generic certificate; each claim retains its method, scope and legal basis.

A regulatory notice or safety reference does not establish delivered spirulina value

A taxonomic record, GRAS notice, contaminant tolerance or food-status conclusion does not establish current availability, composition, conformity, transaction value or delivered cost. A defensible physical assessment still needs permitted current observations for the exact taxon and strain, cultivation system, wet or dried biomass, powder, tablet, formulation or extract form, composition and lot-specific safety evidence, origin and custody, package, quantity, currency, Incoterm, load and destination points, delivery window, freight, duties and information vintage. Atlas withholds a delivered estimate when those observations or usage rights are missing.

Questions procurement teams ask

Are Arthrospira platensis, Spirulina platensis and Limnospira platensis the same market identity?

They may refer to the same underlying taxon in different regulatory and nomenclatural systems, but the declared name, authority, strain or culture identifier and identification method must remain explicit. Atlas does not silently normalize every label or infer strain identity.

Is spirulina powder interchangeable with phycocyanin extract?

No. Powder can be whole dried biomass, while an extract is a separated fraction with a different process, composition, use and regulatory basis. Dry-matter balance, extraction method, carriers, purity, safety tests and intended use must be compared separately.

Does cultivated spirulina eliminate the need for microcystin testing?

No. Controlled cultivation can reduce some contamination pathways, but FDA and ANSES still emphasize production controls and contaminant testing. The exact lot needs a suitable sampling plan, validated method, analyte coverage, laboratory result and destination basis.

Does FDA GRN 394 approve every spirulina product and use?

No. It concerns a specified dried Arthrospira platensis biomass, intended conventional-food uses and use levels. FDA's response is notice-specific, and other extracts, colors, supplements, claims, formulations, uses and destinations can follow different rules.

Which fields make spirulina offers comparable?

Declared taxon and strain or culture identifier, identification method, cultivation system and site, culture water and inputs, harvest and processing dates, washing, dewatering, drying, milling or extraction route, wet or dried biomass, powder, flakes, granules, tablets, formulation or extract form, dry matter and composition, microcystins and other cyanotoxins, metals, microbiology and residues, additives, intended use and destination basis, processor, package and custody, lot, quantity, currency, Incoterm, destination, delivery window and evidence date.

Sources and provenance

Figures retain their source, period and review date. Corroboration is not promoted to primary evidence.

Species Arthrospira platensis
List of Prokaryotic names with Standing in Nomenclature, DSMZ · Authoritative nomenclatural record for the validly published Arthrospira platensis name, current synonym treatment, correct-name reference and strain-deposit cautions; nomenclature is not a culture or lot identity test · accessed 2026-09-18
GRN No. 394 — dried biomass of Arthrospira platensis
U.S. Food and Drug Administration · Primary FDA GRAS inventory record for specified dried Arthrospira platensis biomass, intended conventional-food uses, 0.5-to-3-gram serving levels and FDA's notice-specific no-questions response; not a blanket approval or lot certificate · accessed 2026-09-18
Blue-Green Algae Products and Microcystins
U.S. Food and Drug Administration · Primary FDA safety guidance on cyanobacterial contamination, harvest and process controls, validated microcystin testing, certificates of analysis, recalls and current good manufacturing practices; it does not certify an offered lot · accessed 2026-09-18
FDA staff publication — LC-MS/MS quantitation of microcystins in blue-green-algal supplements
U.S. Food and Drug Administration · Primary FDA staff method record reporting validated supplement matrices, fortification range, recovery, detection and quantification limits; analytical performance references are not product results · accessed 2026-09-18
Opinion on risks associated with food supplements containing spirulina — 2014-SA-0096
French Agency for Food, Environmental and Occupational Health & Safety · Primary national food-safety opinion on cyanotoxin, bacterial and trace-metal contamination, water and inoculum controls, microcystin exposure, adverse effects and claim cautions; it is not a lot test or universal destination limit · accessed 2026-09-18
Cyanobacterial Toxins in Drinking Water — natural health product context
Health Canada · Primary Canadian health guidance recording finished-product and raw-material microcystin tolerances for licensed cyanobacterial natural health products; Canadian tolerances are jurisdiction-specific, not global lot certification · accessed 2026-09-18
Article 4 conclusion — silicon-enriched Spirulina (Arthrospira platensis)
European Commission, Food Safety · Primary EU Article 4 conclusion distinguishing ordinary Arthrospira platensis food status from a silicon-enriched preparation; the decision is product- and EU-specific and not conformity or market evidence · accessed 2026-09-18
Grading systems
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National and regional grading frameworks defining tradeable quality.
Producers
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Country-level production, share of global output, exporter/importer status.
Supply risks
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Active and seasonal supply-side risks — weather, disease, geopolitical, regulatory.
Documentation
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Required export and import documents per origin-destination corridor.