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Updated: 18 Apr 2026

10 Best Spirulina Supplements Immune

#1 Best Pick
NOW Supplements, Certified Organic, Spirulina 1000 mg (Double Strength), Rich in Beta-Carotene (Vitamin A) and B-12 with Naturally Occurring GLA, 240 Tablets

NOW Supplements, Certified Organic, Spirulina 1000 mg (Double Strength), Rich in Beta-Carotene (Vitamin A) and B-12 with Naturally Occurring GLA, 240 Tablets

Brand: NOW
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  • NOW's Spirulina 1000 mg tablets are certified organic and non-GMO. These tablets are an easy way to get a daily dose of this nutrient rich superfood featuring beta-carotene (Vitamin A) and Vitamin B-12.
  • This double strength product has twice the Spirulina (1,000 mg per tablet) as in our regular strength product (500 mg per tablet).
  • USDA Organic, Non-GMO, Genuine Whole Foods, Quality GMP Assured, Vegan/Vegetarian, Soy Free, Sugar 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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#2 Best Value
Vitaceuticals Advanced Immunity Boost Forte - Immune Support Supplement with Andrographis, Echinacea, Olive Leaf Extract, Zinc & Black Elderberry | Reduces Cold & Flu Symptoms | Respiratory Health & Well-Being | 60 Tablets

Vitaceuticals Advanced Immunity Boost Forte - Immune Support Supplement with Andrographis, Echinacea, Olive Leaf Extract, Zinc & Black Elderberry | Reduces Cold & Flu Symptoms | Respiratory Health & Well-Being | 60 Tablets

Brand: Vitaceuticals
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  • RELIEVES SYMPTOMS OF COMMON COLD โ€“ Formulated with Andrographis, proven to reduce the duration and severity of common colds and flu. This immune-boosting blend helps fortify your bodyโ€™s natural defenses for year-round protection.
  • REDUCES COLD & FLU SYMPTOMS โ€“ Contains Black Elderberry, an antioxidant with antiviral properties, and Echinacea, which supports symptom relief by enhancing the bodyโ€™s natural defense against common cold and flu viruses.
  • REDUCES SEVERITY OF URTI โ€“ Upper respiratory traxct infections. Olive Leaf and Zinc work together to help soothe and protect the respiratory tract. Zinc supports immune function, while Olive Leaf helps reduce upper respiratory infections and congestion.
  • SUPPORTS IMMUNE SYSTEM HEALTH โ€“ Packed with Echinacea, known for its antioxidant properties, this supplement supports general health and helps your body fight off environmental stressors that can weaken immunity.
  • MAINTAIN OVERALL WELLNESS โ€“ Each bottle contains 60 tablets packed with immune-boosting ingredients like Zinc, Black Elderberry, and Olive Leaf extract and more, offering a full month of comprehensive immune health support.
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#3 Budget Pick
Synergy Natural Organic Spirulina 200 Tablets 500mg

Synergy Natural Organic Spirulina 200 Tablets 500mg

Brand: Synergy Natural
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  • Natures richest source of protein than fish or meat
  • Rich in chlorophyll and 58 times more iron than spinach
  • A great source of antioxidants and contain beta-carotene
  • Rich and concentrated source of essential fatty acids
  • A food supplement maintaining health, energy and optimum weight
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#4 Top Choice
Green Nutritionals Hawaiian Pacifica Spirulina 200 tablets - Vegan Friendly

Green Nutritionals Hawaiian Pacifica Spirulina 200 tablets - Vegan Friendly

Brand: Hawaiian Pacifica
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  • Ingredients: POWDER Ingredients: 100% Pure Hawaiian Spirulina (Arthrospira platensis) TABLETS (500mg) Ingredients: Hawaiian Spirulina 98.5% (Arthrospira platensis), Silica 1%, Chicory Inulin 0.4%, Vegetable Magnesium Stearate 0.1%.
  • Green Nutritionals Hawaiian Pacifica Spirulina 200 tablets - Vegan Friendly
  • Worldโ€™s richest source of beta-carotene โ€“ 25 times higher than raw carrots. 300% more calcium than whole milk. 28 times richer in iron than raw beef liver
  • Available in powder or capsule form make it convenient and simple to use. Suitlable for vegan and vegeterian. Free from gluten, GMO, chemical
  • Vitamin and Supplements
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#5 Popular Choice
VPA? Australia Spirulina - Natural Unflavoured, 100% Pure, 200g (40 Servings)

VPA? Australia Spirulina - Natural Unflavoured, 100% Pure, 200g (40 Servings)

Brand: VPA
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  • Supports Immune Health โ€“ Rich in antioxidants and anti-inflammatory compounds that help strengthen the bodyโ€™s natural defences.
  • Natural Detox Support โ€“ Contains detoxifying properties that assist in removing toxins and promoting overall wellbeing.
  • Aids Digestion & Weight Management โ€“ Helps support healthy digestion, energy production, and weight loss efforts as part of a balanced lifestyle.
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#6 Top Pick
On Target Living Spirulina Chlorella + CGF | 1000 Tablets | Vegan | Boosts Immune System | High in Protein | Alkalyzing | Nutrient Dense | Detoxifying | Energy | Recovery |

On Target Living Spirulina Chlorella + CGF | 1000 Tablets | Vegan | Boosts Immune System | High in Protein | Alkalyzing | Nutrient Dense | Detoxifying | Energy | Recovery |

Brand: On Target Living
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  • Exceptional Quality: 45% pure spirulina, 45% pure chlorella, 10% pure chlorella growth factor pressed into tablet form for easy everyday consumption.Sourced from the Taiwan, cultivated in fresh water ponds in one of the best climates in the world for spirulina chlorella cultivation.
  • Safe for the entire family. (Pets too): Lab tested for quality, no additives, binders or fillers. Each batch is 3rd party tested and a certificate of analysis is available upon request. We stand behind our products 100%.
  • Trusted Brand: On Target Living is the leading authority on Small Steps to Healthy Living, we back all of our products 100%. We have been a leading educator of human performance for over 30 years. Based out of Lansing, Michigan.
  • On Target Living Mission: To improve the health and performance of the American population one person at a time! We do this through our educational seminars, webinars, books, podcasts, and our brand new app.
  • Source from Taiwan: The best climate in the world for Spirulina/ Chlorella cultivation. Taiwan and India are the two best countries for the highest quality product available.
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#7 Top Pick
On Target Living Organic Spirulina Chlorella | USDA Organic | 1000 Tablets- 250 G (8.8 oz) | Vegan | Immune System Boosting | Alkalyzing | Nutrient Dense | Detoxifying | Protein Dense |

On Target Living Organic Spirulina Chlorella | USDA Organic | 1000 Tablets- 250 G (8.8 oz) | Vegan | Immune System Boosting | Alkalyzing | Nutrient Dense | Detoxifying | Protein Dense |

Brand: On Target Living
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  • USDA Organic: 50% pure spirulina, 50% pure chlorella pressed into tablet form for easy everyday consumption. Sourced from the Taiwan, cultivated in fresh water ponds in one of the best climates in the world for spirulina chlorella cultivation.
  • Safe for the entire family. (Pets too): Lab tested for quality, no additives, binders or fillers. Each batch is 3rd party tested and a certificate of analysis is available upon request. We stand behind our products 100%.
  • Trusted Brand: On Target Living is the leading authority on Small Steps to Healthy Living, we back all of our products 100%. We have been a leading educator of human performance for over 30 years. Based out of Lansing, Michigan.
  • On Target Living Mission: To improve the health and performance of the American population one person at a time! We do this through our educational seminars, webinars, books, podcasts, and our brand new app.
  • Source from Taiwan: The best climate in the world for Spirulina/ Chlorella cultivation. Taiwan and India are the two best countries for the highest quality product available.
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#8 Top Pick
Healthy Care Super Spirulina 1000mg Tablets, Light Green, 400 Count | Natural source of antioxidants, protein, iron and beta carotene

Healthy Care Super Spirulina 1000mg Tablets, Light Green, 400 Count | Natural source of antioxidants, protein, iron and beta carotene

Brand: VELOSVIE
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  • Essential nutrients : Healthy Care super spirulina tablets offer a high potency 1000 mg dose of Spirulina per tablet. This blue-green algae is celebrated as a superfood, packed with a significant array of nutrients known for their health benefits.
  • Health benefits: Spirulina is a powerhouse of vital nutrients. It naturally supports protein and iron levels in the body, enhances antioxidant protection, and boosts energy and vitality. Additionally, it assists with the bodyโ€™s detoxification processes, promoting overall well-being.
  • Convenient tablet form: Designed for ease of use, these super spirulina tablets are a hassle-free way to incorporate the health benefits of spirulina into your daily routine. Each bottle contains 400 light green tablets, making it easy to maintain consistent supplementation.
  • Clean and pure composition: These spirulina supplements are free from added sugar, yeast, gluten, starch, wheat, corn, milk derivatives, preservatives, artificial flavours, or sweeteners, making them a suitable choice for individuals seeking a natural supplement without common allergens and additives.
  • Quality first: Australia is one of the few countries in the world that regulates health supplements with therapeutic regulations. Before anything leaves our warehouse it has to go through over 20 quality checks. All conforming to the TGA and cGMP standards.
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#9 Top Pick
Pure Spirulina Powder | Immune Support and Antioxidants | No Filler & Non-GMO, Rich in Vegan Protein (100gm)

Pure Spirulina Powder | Immune Support and Antioxidants | No Filler & Non-GMO, Rich in Vegan Protein (100gm)

Brand: Raslok
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  • Immune Support: Spirulina is renowned for its immune-boosting properties. It provides your body with the vital nutrients it needs to fortify your natural defense system and protect against various health threats.
  • Antioxidant Powerhouse: This incredible blue-green algae is rich in antioxidants, fighting off free radicals and helping to reduce oxidative stress. It promotes radiant, youthful skin and supports overall cellular health.
  • Vegan Protein Source: Looking to enhance your protein intake on a plant-based diet? Raslok Pure Spirulina Powder is your go-to solution. It offers a complete source of vegan protein, containing all the essential amino acids your body requires.
  • Nutrient-Dense: Spirulina is a potent source of vitamins, minerals, and essential nutrients, such as iron, vitamin B12, and chlorophyll, which are vital for your energy levels and overall well-being.
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#10 Top Pick
Swisse High Strength Organic Spirulina - Supports Energy Production & Wellbeing - 200 Tablets

Swisse High Strength Organic Spirulina - Supports Energy Production & Wellbeing - 200 Tablets

Brand: Swisse
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  • High strength organic spirulina tablets.
  • A natural source of vitamins, minerals, and antioxidants.
  • Contributes to energy metabolism and normal immune system function.
  • Good source of vitamin K which contributes to normal bone structure.
  • Suitable for vegans and vegetarians.
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