Best Spirulina / chlorella products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 59 · Reference range: 250 – 8,000 mg (source) · Updated 2026-11-01
Reference range: derived from the cited reference values; see the methodology.
Single-ingredient products only.
Left out of this list: combination products (a single-ingredient list exists) (55)
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 (No data (not scored); the other four parts are rescaled from 90 to 100) — Methodology · Spirulina / chlorella →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Spirulina Nature's Sunshine · US NIH DSLD |
2,400 mg | 100.0 | Breakdown
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| 2 tie |
Organic Spirulina Arthrospira Plantensis 21st Century · US NIH DSLD |
450 mg | 94.4 | Breakdown
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| 2 tie |
Spirulina + Chlorella Onnit · US NIH DSLD |
2,000 mg | 94.4 | Breakdown
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| 4 | Chlorella Tablets Prairie Naturals Health Products Inc. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 5 tie |
California Spirulina Healths Harmony · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Chlorella Powder Sun Potion · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Organic Spirulina Herbadiet · US NIH DSLD |
3,000 mg | 83.3 | Breakdown
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| 5 tie |
Organic Spirulina 1 g Unflavored Nutricost Organic · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Organic Spirulina 1 g Unflavored Nutricost · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Sea Moss with Spirulina 1000 mg Atlantic Naturals · US NIH DSLD |
500 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Good State · US NIH DSLD |
6,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina BRI Nutrition · US NIH DSLD |
2,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Pure Herbs · US NIH DSLD |
3,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina AN Amazing Nutrition Amazing Formulas · US NIH DSLD |
8,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina BioAnue · US NIH DSLD |
950 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Nature's Answer · US NIH DSLD |
2,400 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina GNC SuperFoods · US NIH DSLD |
4,500 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina GreeNatr Premium · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Herb Stop · US NIH DSLD |
2,598 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Dr. Rico Perez · US NIH DSLD |
500 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 1500 mg Evlution Nutrition · US NIH DSLD |
1,500 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 360 mg Jane Health · US NIH DSLD |
2,850 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 475 mg Christopher's Original Formulas · US NIH DSLD |
1,900 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 500 mg Sunshine Naturals · US NIH DSLD |
500 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 500 mg LuRoot · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 500 mg Capsules BulkSupplements.com · US NIH DSLD |
500 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina 8 g Nutricost · US NIH DSLD |
8,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina AstaBlue Complex California Gold Nutrition · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Blue Green Algae 500 mg CHK Nutrition · US NIH DSLD |
3,000 mg | 83.3 | Breakdown
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| 5 tie |
Spirulina Tablets 500 mg Stakich · US NIH DSLD |
500 mg | 83.3 | Breakdown
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| 31 tie |
Organic Spirulina Extract Herbadiet · US NIH DSLD |
2,000 mg | 81.1 | Breakdown
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| 31 tie |
Perfect Spirulina Perfect Supplements · US NIH DSLD |
2,800 mg | 81.1 | Breakdown
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| 31 tie |
Spirulina 410 mg Absorb Health · US NIH DSLD |
410 mg | 81.1 | Breakdown
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| 31 tie |
Spirulina 500 mg Vitabase · US NIH DSLD |
3,000 mg | 81.1 | Breakdown
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| 31 tie |
Spirulina 500 mg Totally Products · US NIH DSLD |
1,000 mg | 81.1 | Breakdown
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| 36 | Spirulina Nature's Sunshine Products of Canada Ltd. · Health Canada LNHPD |
400 mg | 80.9 | Breakdown
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| 37 tie |
Albi Blue Green Algae 1000 mg tablets Bona Vita Holdings Inc. · Health Canada LNHPD |
1,000 mg | 76.7 | Breakdown
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| 37 tie |
Albi Blue Green Algae 500 VegiCaps Bona Vita Holdings Inc. · Health Canada LNHPD |
500 mg | 76.7 | Breakdown
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| 37 tie |
Earthrise Spirulina Natural Capsules Earthrise Nutritionals LLC · Health Canada LNHPD |
600 mg | 76.7 | Breakdown
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| 37 tie |
Earthrise Spirulina Natural Powder Earthrise Nutritionals LLC · Health Canada LNHPD |
3,000 mg | 76.7 | Breakdown
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| 37 tie |
Earthrise Spirulina Natural Tablets Earthrise Nutritionals LLC · Health Canada LNHPD |
500 mg | 76.7 | Breakdown
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| 37 tie |
Genestra Brands¿ Chlorgen Seroyal International · Health Canada LNHPD |
500 mg | 76.7 | Breakdown
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| 37 tie |
Hawaiian Spirulina Distripharm Inc. · Health Canada LNHPD |
493 mg | 76.7 | Breakdown
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| 37 tie |
Mayaka International Inc. Spirulina 400 mg capsules Mayaka International Inc. · Health Canada LNHPD |
400 mg | 76.7 | Breakdown
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| 37 tie |
ORGANIC CHLORELLA (Powder) Green Foods Corp. · Health Canada LNHPD |
3,000 mg | 76.7 | Breakdown
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| 37 tie |
SOLARAY®Chlorella (CHLORELLA PYRENOIDOSA) Au Naturel Inc. · Health Canada LNHPD |
410 mg | 76.7 | Breakdown
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| 37 tie |
Spirulina NuGale Pharmaceutical Inc. · Health Canada LNHPD |
500 mg | 76.7 | Breakdown
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| 37 tie |
Spirulina Alta Naturals Herbs & Supplements Ltd. · Health Canada LNHPD |
500 mg | 76.7 | Breakdown
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| 37 tie |
Spiruline Bio 9051-1916 Québec Inc. f.a.s.n Le Monde au Naturel · Health Canada LNHPD |
500 mg | 76.7 | Breakdown
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| 50 tie |
Herbafresh Organic Spirulina 500mg Tablets Fiberlife Health Products Inc. · Health Canada LNHPD |
500 mg | 68.9 | Breakdown
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59 products were scored; the top 50 are listed here. See the rest in the product list.
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.