{"name":"Spirulina","slug":"spirulina","url":"https://www.trueserving.app/compare/spirulina","reference_daily_dose_mg":2000,"display_unit":"g","source":"TrueServing reads Supplement Facts labels and calculates monthly cost from active ingredient amount, servings per container, and current price.","ranking_method":"Products are ranked by estimated 30-day cost at the reference daily dose.","qualifying_product_count":30,"visible_product_count":28,"review_floor":25,"products":[{"rank":1,"brand":"Nutricost Store","title":"Nutricost Organic Spirulina Powder Unflavored, 1LB Container for 454 Servings (3 Bottles) - Vegan, GMO Free and Gluten Free","form":"Powder","asin":"B00WAPA2JW","active_ingredient_per_serving_mg":1000,"servings_per_container":1362,"supply_days_at_reference_dose":681,"current_price":38.99,"cost_per_30_days":0.86,"price_per_mg_active":0.000029,"review_count":31,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:16:30.069Z"},{"rank":2,"brand":"Nutricost Store","title":"Nutricost Organic Spirulina Powder (1LB) 454 Grams, Pure, Vegan | Certified Organic Spirulina","form":"Powder","asin":"B00WAPA2NS","active_ingredient_per_serving_mg":1000,"servings_per_container":454,"supply_days_at_reference_dose":227,"current_price":19.95,"cost_per_30_days":1.32,"price_per_mg_active":0.000044,"review_count":3412,"is_third_party_tested":true,"has_coa":false,"last_price_refresh":"2026-07-19T12:01:18.792Z"},{"rank":3,"brand":"Nutricost Store","title":"Nutricost Organic Spirulina 500mg, 240 Tablets - Gluten Free, Non-GMO","form":"Tablets","asin":"B096G969KJ","active_ingredient_per_serving_mg":500,"servings_per_container":240,"supply_days_at_reference_dose":60,"current_price":12.95,"cost_per_30_days":1.62,"price_per_mg_active":0.000108,"review_count":593,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-19T12:01:41.372Z"},{"rank":4,"brand":"PURE ORIGINAL INGREDIENTS","title":"PURE ORIGINAL INGREDIENTS Spirulina Powder (1 lb) Green Algae Superfood with Phycocyanin","form":"Powder","asin":"B094S44XZG","active_ingredient_per_serving_mg":2000,"servings_per_container":226,"supply_days_at_reference_dose":226,"current_price":15.79,"cost_per_30_days":2.1,"price_per_mg_active":0.000035,"review_count":535,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-15T12:07:48.456Z"},{"rank":5,"brand":"Piping Rock Store","title":"Piping Rock Organic Spirulina | 1000mg | 300 Tablets | Arthrospira Platensis | Vegetarian, Non-GMO, Gluten Free Supplement","form":"Tablets","asin":"B00F9EZVWY","active_ingredient_per_serving_mg":1000,"servings_per_container":150,"supply_days_at_reference_dose":75,"current_price":13.49,"cost_per_30_days":2.7,"price_per_mg_active":0.00009,"review_count":1017,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:17:32.383Z"},{"rank":6,"brand":"NOW Foods Store","title":"NOW Supplements, Organic Spirulina 500 mg with Vitamins, Minerals and GLA (Gamma-Linolenic Acid), 100 Tablets","form":"Tablets","asin":"B00028M616","active_ingredient_per_serving_mg":1000,"servings_per_container":50,"supply_days_at_reference_dose":25,"current_price":6.11,"cost_per_30_days":3.67,"price_per_mg_active":0.000122,"review_count":null,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-19T12:01:54.882Z"},{"rank":7,"brand":"Micro Ingredients Store","title":"Organic Spirulina Powder, 1lb | Blue-Green Algae, Naturally Occurring Vegan Protein, Vitamins & Minerals | Source of Natural Chlorophyll & Enzymes | Non-GMO, Gluten-Free, No Additives","form":"Powder","asin":"B01DPW5FWW","active_ingredient_per_serving_mg":3000,"servings_per_container":151,"supply_days_at_reference_dose":227,"current_price":21.95,"cost_per_30_days":4.36,"price_per_mg_active":0.000048,"review_count":9839,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:11:25.188Z"},{"rank":8,"brand":"Probase Nutrition Store","title":"Probase Nutrition Organic Spirulina Supplement, 3000MG, 720 Tablets | 4 Month Supply, No Filler & Non-GMO, Rich in Vegan Protein, Vitamins & Prebiotics, Premium Spirulina Pills","form":"Tablets","asin":"B09HSNYVGH","active_ingredient_per_serving_mg":3000,"servings_per_container":120,"supply_days_at_reference_dose":180,"current_price":18.66,"cost_per_30_days":4.67,"price_per_mg_active":0.000052,"review_count":363,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-19T12:01:35.267Z"},{"rank":9,"brand":"Sunlit Best Green Organics Store","title":"Sunlit Best Spirulina Powder Organic USDA - Chlorophyll, Fast Absorption, Blue-Green Spirulina Algae, Raw Vegan Protein - Non-GMO, Gluten Free Superfood Energy, Gut, Immune Support Supplement - 8 Oz","form":"Powder","asin":"B0CHGZQ1HG","active_ingredient_per_serving_mg":3000,"servings_per_container":75,"supply_days_at_reference_dose":113,"current_price":13.97,"cost_per_30_days":5.59,"price_per_mg_active":0.000062,"review_count":642,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-10T12:25:08.232Z"},{"rank":10,"brand":"Earthrise Store","title":"Earthrise Spirulina Natural Powder 32oz (2 LB) | Natural Premium from California, Vegan, Gluten Free, Keto Friendly, Non-GMO Super Food","form":"Powder","asin":"B08JN27S22","active_ingredient_per_serving_mg":3000,"servings_per_container":300,"supply_days_at_reference_dose":450,"current_price":63.99,"cost_per_30_days":6.4,"price_per_mg_active":0.000071,"review_count":29,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:15:15.654Z"},{"rank":11,"brand":"NOW Foods Store","title":"NOW Foods Supplements, Organic Spirulina 500 mg with Vitamins, Minerals and GLA (Gamma-Linolenic Acid), 500 Tablets","form":"Tablets","asin":"B000MGSHXE","active_ingredient_per_serving_mg":3000,"servings_per_container":83,"supply_days_at_reference_dose":125,"current_price":21.93,"cost_per_30_days":7.93,"price_per_mg_active":0.000088,"review_count":4912,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-13T12:32:20.505Z"},{"rank":12,"brand":"NOW Foods Store","title":"NOW Foods Supplements, Certified Organic, Spirulina Powder, Rich in Beta-Carotene (Vitamin A) and B-12 with naturally occurring GLA & Chlorophyll, 4-Ounce","form":"Powder","asin":"B0013OW56E","active_ingredient_per_serving_mg":3300,"servings_per_container":34,"supply_days_at_reference_dose":56,"current_price":9.17,"cost_per_30_days":8.09,"price_per_mg_active":0.000082,"review_count":null,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-10T12:25:01.316Z"},{"rank":13,"brand":"Carlyle Store","title":"Carlyle Organic Spirulina Powder 2.2 lbs | Blue Green Algae | 8000mg | Vegan, Non-GMO, Gluten Free Supplement","form":"Powder","asin":"B08T1T25SZ","active_ingredient_per_serving_mg":8000,"servings_per_container":125,"supply_days_at_reference_dose":500,"current_price":34.99,"cost_per_30_days":8.4,"price_per_mg_active":0.000035,"review_count":982,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:13:07.656Z"},{"rank":14,"brand":"Nutrex Hawaii Store","title":"Nutrex Hawaii Pure Hawaiian Spirulina Powder - Vegan Superfood, Farm Grown, Non-GMO, Immune Support & Cellular Energy, 90 Day Supply, 9.53 Oz","form":"Powder","asin":"B0FSTJMJFT","active_ingredient_per_serving_mg":3000,"servings_per_container":90,"supply_days_at_reference_dose":135,"current_price":25.99,"cost_per_30_days":8.66,"price_per_mg_active":0.000096,"review_count":6993,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-19T12:01:12.301Z"},{"rank":15,"brand":"NURTIVE Store","title":"Blue Spirulina Tablets – 250 mg per Daily Serving, Phycocyanin Superfood, 120 Tablets, 2 Tablets per Day – 2-Month Supply – Vegan, Gluten-Free, Non-GMO – GMP-Certified, Third-Party Tested","form":"Tablets","asin":"B0F2HVXMHY","active_ingredient_per_serving_mg":250,"servings_per_container":120,"supply_days_at_reference_dose":15,"current_price":34.95,"cost_per_30_days":8.74,"price_per_mg_active":0.001165,"review_count":26,"is_third_party_tested":true,"has_coa":false,"last_price_refresh":"2026-07-19T11:37:28.062Z"},{"rank":16,"brand":"Triquetra Health Store","title":"Organic Spirulina Tablets (360 Tablets) - Made with Parry® Spirulina, The Best Spirulina in the World, Highest Nutrient Density - Non-Irradiated, 3 Organic Certifications (90 Servings)","form":"Tablets","asin":"B08S4982CC","active_ingredient_per_serving_mg":2000,"servings_per_container":90,"supply_days_at_reference_dose":90,"current_price":29.89,"cost_per_30_days":9.96,"price_per_mg_active":0.000166,"review_count":3390,"is_third_party_tested":true,"has_coa":false,"last_price_refresh":"2026-07-08T12:17:43.067Z"},{"rank":17,"brand":"365 by Whole Foods Market Store","title":"365 by Whole Foods Market, Organic Spirulina Superfood Powder, 4 Ounce","form":"Powder","asin":"B08S57JN8K","active_ingredient_per_serving_mg":3000,"servings_per_container":38,"supply_days_at_reference_dose":57,"current_price":12.99,"cost_per_30_days":10.26,"price_per_mg_active":0.000114,"review_count":687,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:12:20.666Z"},{"rank":18,"brand":"Triquetra Health Store","title":"Organic Spirulina Powder – Made with Parry® Spirulina, Known for Superior Purity and Nutrient Density – Vegan Farming – Non-Irradiated – Blue-Green Algae Superfood Supplement – 75 Servings – 8 oz","form":"Powder","asin":"B00XV4SNJ2","active_ingredient_per_serving_mg":3000,"servings_per_container":75,"supply_days_at_reference_dose":113,"current_price":26.95,"cost_per_30_days":10.78,"price_per_mg_active":0.00012,"review_count":3390,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:15:05.738Z"},{"rank":19,"brand":"Nutrex Hawaii Store","title":"Nutrex Hawaii Pure Hawaiian Spirulina Powder - Vegan Superfood, Farm Grown in Kona, Non-GMO, Immune Support & Cellular Energy, 5 Oz","form":"Powder","asin":"B0039ITKQK","active_ingredient_per_serving_mg":3000,"servings_per_container":47,"supply_days_at_reference_dose":71,"current_price":16.99,"cost_per_30_days":10.84,"price_per_mg_active":0.00012,"review_count":6983,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:12:41.178Z"},{"rank":20,"brand":"BulkSupplements Store","title":"BulkSupplements.com Organic Spirulina Powder - Superfood, Green Spirulina Powder, Herbal Supplement - Vegan-Friendly, 3g per Serving, 500g (1.1 lbs) (Pack of 1)","form":"Powder","asin":"B00ENSGXY2","active_ingredient_per_serving_mg":9000,"servings_per_container":56,"supply_days_at_reference_dose":252,"current_price":25.97,"cost_per_30_days":13.91,"price_per_mg_active":0.000052,"review_count":912,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:12:14.862Z"},{"rank":21,"brand":"Nutrex Hawaii Store","title":"Nutrex Hawaii Pure Hawaiian Spirulina – Vegan Superfood, 500 mg Tablets, Farm Grown in Kona, Non-GMO, Immune Support & Cellular Energy, 400 Count","form":"Tablets","asin":"B0039ITKSI","active_ingredient_per_serving_mg":3000,"servings_per_container":66,"supply_days_at_reference_dose":99,"current_price":30.99,"cost_per_30_days":14.09,"price_per_mg_active":0.000157,"review_count":10870,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-15T12:09:24.980Z"},{"rank":22,"brand":"Vimergy Store","title":"Vimergy Spirulina Powder – Concentrated Plant Protein Supports Immune Health & Cardiovascular Function – Vegan, Kosher, Gluten-Free – 250g","form":"Powder","asin":"B07KGFGQHQ","active_ingredient_per_serving_mg":3000,"servings_per_container":83,"supply_days_at_reference_dose":125,"current_price":40,"cost_per_30_days":14.46,"price_per_mg_active":0.000161,"review_count":2753,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:13:20.649Z"},{"rank":23,"brand":"Vimergy Store","title":"Vimergy Spirulina Powder – Concentrated Plant Protein Supports Immune Health & Cardiovascular Function – Vegan, Kosher, Gluten-Free – 135g","form":"Powder","asin":"B0BSLW44KM","active_ingredient_per_serving_mg":3000,"servings_per_container":45,"supply_days_at_reference_dose":68,"current_price":27,"cost_per_30_days":18,"price_per_mg_active":0.0002,"review_count":2761,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-19T12:02:08.593Z"},{"rank":24,"brand":"Earthrise Store","title":"Earthrise Superfood California Spirulina 500mg Tablets, 180 Count | 100% Natural Premium, Vegan, Gluten Free, Keto Friendly, Non-GMO","form":"Tablets","asin":"B0DLD7TDRV","active_ingredient_per_serving_mg":3000,"servings_per_container":30,"supply_days_at_reference_dose":45,"current_price":19.15,"cost_per_30_days":19.15,"price_per_mg_active":0.000213,"review_count":79,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:17:52.787Z"},{"rank":25,"brand":"Double Wood Supplements Store","title":"Blue Spirulina Powder - Maximum 35% Phycocyanin Content, Superfood Powder from Blue-Green Algae, Mixes into Smoothies and Protein Drinks, Plant Food Coloring (One Month Supply) by Double Wood","form":"Powder","asin":"B08XC7KSRP","active_ingredient_per_serving_mg":1000,"servings_per_container":30,"supply_days_at_reference_dose":15,"current_price":19.95,"cost_per_30_days":19.95,"price_per_mg_active":0.000665,"review_count":1563,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:14:38.468Z"},{"rank":26,"brand":"Micro Ingredients Store","title":"Organic Blue Spirulina Powder (Phycocyanin Extract), 30 Servings - No Fishy Smell, 100% Vegan Protein from Blue-Green Algae, Natural Luminous Food Coloring for Smoothies, Baking, Drinks & Cooking","form":"Powder","asin":"B0DDW2L4YM","active_ingredient_per_serving_mg":1000,"servings_per_container":30,"supply_days_at_reference_dose":15,"current_price":19.95,"cost_per_30_days":19.95,"price_per_mg_active":0.000665,"review_count":1918,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:14:47.647Z"},{"rank":27,"brand":"Natures Wellness Store","title":"USDA Organic Spirulina Tablets - Non-GMO Green Superfood Supplement: 3000mg of Fresh Blue Green Algae, Vegan, Gluten Free, Sustainably Grown, Pesticides Free and Non-Irradiated, 500mg per Tablet, 180'","form":"Tablets","asin":"B06XWHFVQQ","active_ingredient_per_serving_mg":3000,"servings_per_container":30,"supply_days_at_reference_dose":45,"current_price":19.95,"cost_per_30_days":19.95,"price_per_mg_active":0.000222,"review_count":153,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:18:11.483Z"},{"rank":28,"brand":"Incas by Asiya Life Store","title":"USDA Organic Blue Spirulina Powder (Phycocyanin Extract), No Fishy Smell, 100% Vegan Protein from Blue-Green Algae, 28 Servings, Natural Food Coloring for Smoothies, Baking & Drinks (1 Ounce)","form":"Powder","asin":"B08YRDBFFX","active_ingredient_per_serving_mg":1000,"servings_per_container":20,"supply_days_at_reference_dose":10,"current_price":16.99,"cost_per_30_days":25.49,"price_per_mg_active":0.00085,"review_count":1092,"is_third_party_tested":false,"has_coa":false,"last_price_refresh":"2026-07-08T12:11:39.959Z"}]}