10 Best Organic Spirulina Tablets 500 of 2025

Tested and Reviewed: Top 10 Organic Spirulina Tablets 500 deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Micro Ingredients

Micro Ingredients Organic Spirulina Supplement, 720 Tablets (4 Month Supply), No Filler & Non-GMO, Rich in Vegan Protein, Vitamins & Prebiotics, Premium Spirulina Pills

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Editor's bottom line:

“This organic spirulina tablets 500 is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

USDA Organic Spirulina Tablet from Spirulina Powder Organic (Arthrospira Platensis), 3000mg Per Serving, 720 Counts (4 Months Supply), Green Algae Super Food, Vegan Friendly, Filler Free, Irradiation Free, Easy to Swallow.
Loaded with Vegan Protein, Chlorophyll, Fiber, Amino Acids (Omega 3 6 9, GLA, Arginine), Fatty Acids, Immune Vitamins (Vitamin A, Vitamin B2, Vitamin B12, Vitamin C, Vitamin K, Biotin), Minerals (Magnesium, Calcium, Potassium & Zinc Vitamin), Flavonoids and Phytonutrients.
A nutrient-dense spirulina superfood made to complement everyday nutritional intake.
No GMOs, No Irradiation, No Additives, No Preservatives, No Artificial Colors, No Flavors, No Soy and No Gluten.
3rd Party Lab Tested for Purity and Safety. Made in USA.

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Picked by 397 people today

9.5

Micro Ingredients

Organic Spirulina Chlorella Tablets, 3,000mg Per Serving, 720 Tablets (4 Month Supply) | 50/50 Blend Superfood | Cracked Cell Wall for Better Absorption | Rich in Vegan Protein & Chlorophyll

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Main Highlights

Raw Organic Spirulina Chlorella Tablets (Broken Cell Wall), Made from Organic Chlorella Spirulina Powder, 3000mg Per Serving, 720 Tablets (4 Months Supply), 2 in 1 Formula, Filler & Irradiation Free, Green Algae Super Food and Vegan Friendly
Premium Chlorella Spirulina Organic Supplement, Loaded with Vegan Protein, Chlorophyll, Fiber, Amino Acids (Omega 3 6 9, GLA, Arginine), Fatty Acids, Immune Vitamins (Vitamin A, Vitamin B2, Vitamin B12, Vitamin C, Vitamin K, Biotin), Minerals, and Easy to Swallow.
A natural green superfood made from spirulina and chlorella, rich in plant-based nutrients and suitable for daily supplementation.
No GMOs, No Additives, No Preservatives, No Artificial Colors, No Flavors, No Soy, No Fillers and No Gluten.
Lab Tested for Purity and Safety.

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9.5

Nutricost

Nutricost Organic Spirulina 500mg, 240 Tablets - Gluten Free, Non-GMO

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Main Highlights

500MG of Organic Spirulina Per Tablet
CCOF Certified USDA Organic Spirulina
240 Spirulina Tablets Per Bottle
Non-GMO, Soy Free, and Gluten Free
Manufactured In a GMP Compliant, FDA Registered Facility

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9.2

Sunlit Best Green Organics

Sunlit Best Spirulina Tablets - Organic Spirulina Tablets USDA Premium 500 Count - Natural Spirulinas Organic Burst for Immune Support Muscle Growth, Energy Boost w/Chlorophyll - High Protein, Non GMO

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Main Highlights

ORGANIC SUPERFOOD FOR OPTIMAL HEALTH: Our potent natural superfood Spirulina supplements nourish your cells to help boost energy levels, support a strong immune system and digestion. Sunlit Best Green Organics Spirulina tablets are an integral part of your natural beauty regime & overall healthy, energetic lifestyle.
IMMUNE SUPPORT & ANTIOXIDANT: Unlike other green powder products, our Organic Spirulina Tablets are loaded with potent antioxidants and nutrient-rich chlorophyll that naturally strengthen your immune system by protecting cells from oxidative damage while also helping your body naturally cleanse itself of toxins. Our Spirulina supplements support good health and vitality at the cellular level and give your body exactly what it needs to thrive!
MUSCLE STRENGTH & ENDURANCE: The powerful nutrition, high protein, blue green algae found in our raw, organic Spirulina supplement has been shown to increase muscle strength, boost stamina, and reduce recovery time after training. Optimize your fitness level with our ultra-pure spirulina tablets! Third-party tested for quality and purity. Non-GMO, Gluten-Free, NO additives, NO fillers, NO preservatives, NO binders, and NO artificial colors.
BOOST YOUR ENERGY LEVELS NATURALLY: Sunlit Best Green Organics superfood Spirulina Tablets are made up of 60% pure vegan protein and the perfect balance of essential nutrients, including chlorophyll, fiber, antioxidants, enzymes, potassium, iron, calcium, nucleic acid, vitamins A, B1, B2, B6, B12, C, E & minerals along with 18 amino acids proven to boost energy levels, reduce fatigue, and speed up recovery! Better than any sugary greens powder energy drink!
EASY TO SWALLOW: Our Superfood Spirulina Tablets are easy to swallow and digest. Each tablet is made of raw and pure Spirulina (Platensis) which is micronized for faster and better absorption. They are smaller supplements than spirulina capsules, and there is no need to mix in a high-sugar green juice powder or shake to hide the taste as you do with spirulina powder & chlorella powder. Each tab is 250 mg with 500 tablets per travel size MEGA PACK bag.
PREMIUM NATURAL HIGH QUALITY SOURCE: Our spirulina organic tablets are sourced from Taiwan, known worldwide for purity and quality production. Produced in a GMP and HACCP food safety certified environment using ISO 22000:2005 for the best quality

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9.0

NOW Foods

NOW Foods Supplements, Organic Spirulina 500 mg with Vitamins, Minerals and GLA (Gamma-Linolenic Acid), 500 Tablets

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Main Highlights

SUPER GREEN/500 mg PER SERVING: Spirulina is a blue-green microalgae that has naturally occurring protein, plus other nutrients such as vitamins, minerals and GLA (gamma-linolenic acid)
PURE, NUTRIENT RICH: NOW Certified Organic Spirulina Tablets are pure and contain no excipients, binders, or additives
CLASSIFICATIONS/CERTIFICATIONS: USDA Certified Organic, Non-GMO Project Verified, Vegan/Vegetarian, Kosher, Soy Free
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
Packaged in the USA by a family owned and operated company since 1968

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8.8

Carlyle

Carlyle Organic Spirulina Tablets 3500mg | 500 Count | Non-GMO & Gluten Free Supplement

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Main Highlights

ORGANIC SPIRULINA: Enjoy the beneifts of this blue-green algae and coveted super food!
VEGETARIAN FORMULA: Features 3,500 mg of Spirulina per serving in convenient vegetarian tablets
ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
NATURALLY FREE OF: Gluten, Wheat, Lactose, Artificial Flavor, Sweetener, Preservatives & Non-GMO

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8.6

NOW Foods

NOW Foods Supplements, Organic Spirulina 500 mg with Vitamins, Minerals and GLA (Gamma-Linolenic Acid), 200 Tablets

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Main Highlights

SUPER GREEN/500 mg PER SERVING: Spirulina is a blue-green microalgae that has naturally occurring protein, plus other nutrients such as vitamins, minerals and GLA (gamma-linolenic acid)
PURE, NUTRIENT RICH: NOW Certified Organic Spirulina Tablets are pure and contain no excipients, binders, or additives
CLASSIFICATIONS/CERTIFICATIONS: USDA Certified Organic, Non-GMO Project Verified, Vegan/Vegetarian, Kosher, Soy Free
GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product formulation.
Packaged in the USA by a family owned and operated company since 1968

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8.3

Nutrex

Nutrex Hawaii Pure Hawaiian Spirulina – Vegan Superfood, 500 mg Tablets, Farm Grown in Kona, Non-GMO, Immune Support & Cellular Energy, 400 Count

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Main Highlights

PURE BY ORIGIN: In spirulina aquaculture, water quality is everything. We use pure, lava-filtered Hawaiian aquifer water - never industrial run-off or unregulated waters. Always ask the water source.
VEGAN SUPERFOOD: 60% plant-based complete protein, naturally occurring amino acids, vitamins A, K1, K2, B12, magnesium, phycocyanin, beta-carotene, iron, GLA, chlorophyll, zeaxanthin. Take 1 tsp daily in food or beverages.
WHOLE-BODY WELLNESS: Clinically studied, antioxidant-rich microalgae supporting cellular health and immune function.
BETTER THAN ORGANIC: Half of organic spirulina and greens powders tested contained high lead in our recent 3rd party validated study, with all brands sourcing overseas. Hawaiian Spirulina passed all testing - proof that purity comes from origin, not labels.
FARM-GROWN IN HAWAII: Sustainably cultivated in Kona, Hawaii for over 40 years. Truly U.S.-grown (not just made or packaged in the USA). Non-GMO, vegan, no fillers

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8.1

Piping Rock

Piping Rock Chlorella Spirulina Organic | 500 Tablets | Vegetarian Pills | Non-GMO, Gluten Free Supplement

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Main Highlights

Naturally Occurring Phytonutrients
Beneficial Algae
Vegetarian Tablets
Non-GMO and Gluten Free
Laboratory Tested, using Trusted Ingredients

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8.1

Swanson

Swanson Certified Organic Spirulina 500 Milligrams 180 Tabs

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Main Highlights

Most potent and digestible protein source among green foods
Boosts antioxidant activity
Supports toxin removal '&'amp; cardiovascular health
Organic
Per GMP guidelines, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.

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Our Best Overall Choice

Best Choice

9.7

Micro Ingredients

Micro Ingredients Organic Spirulina Supplement, 720 Tablets (4 Month Supply), No Filler & Non-GMO, Rich in Vegan Protein, Vitamins & Prebiotics, Premium Spirulina Pills

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

USDA Organic Spirulina Tablet from Spirulina Powder Organic (Arthrospira Platensis), 3000mg Per Serving, 720 Counts (4 Months Supply), Green Algae Super Food, Vegan Friendly, Filler Free, Irradiation Free, Easy to Swallow.
Loaded with Vegan Protein, Chlorophyll, Fiber, Amino Acids (Omega 3 6 9, GLA, Arginine), Fatty Acids, Immune Vitamins (Vitamin A, Vitamin B2, Vitamin B12, Vitamin C, Vitamin K, Biotin), Minerals (Magnesium, Calcium, Potassium & Zinc Vitamin), Flavonoids and Phytonutrients.
A nutrient-dense spirulina superfood made to complement everyday nutritional intake.
No GMOs, No Irradiation, No Additives, No Preservatives, No Artificial Colors, No Flavors, No Soy and No Gluten.
3rd Party Lab Tested for Purity and Safety. Made in USA.

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