5 Best Spirulina Powders (Reviews Updated 2022)

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Spirulina is considered a superfood. This bluish-green algae is rich in nutrients and contains about 70% extra proteins than any meat you can find at your local butcher shop. If you are trying to be healthier, then try mixing a small dose of high-quality spirulina powder into your diet. Once you start consuming this powder, you will immediately feel its positive effects.

It’s quite hard to find the best spirulina powder because too many brands are producing it. It would be best if you were careful while buying a spirulina powder, mostly because of the new companies entering the spirulina business, due to its popularity in recent years. But you don’t have to worry; we have reviewed some of the best spirulina powder available in the market.

Best Spirulina Powders

Want to learn more?  

Here are our Spirulina Powder reviews.

1. Anthony’s California Spirulina Powder

Anthony's California Spirulina Powder

When it comes to a high-quality spirulina powder, no one can beat Anthony’s California Spirulina Powder. Spirulina requires a lot of sunshine to grow and what better city to thrive than the sunny California. This spirulina powder can cost up to $14, which is surprisingly cheap. It comes with dimensions of 8.2 x 5 x 1.5 inches and weighs about 8 ounces.

This spirulina powder is rich in vitamins, amino acids and other minerals, which help to keep your immune system healthy. Anthony’s California Spirulina Powder is gluten-free and batch tested. You can use these blue-green algae with smoothies, juices, normal food, and even desserts. This spirulina powder has a moderate smell which is not offending.

The taste of this spirulina powder takes some time to get used to, but that goes without saying for most of the natural and herbal products. Anthony’s California Spirulina Powder is indeed a perfect choice. We highly recommend that you buy this spirulina powder because it will keep you in good shape without costing a lot of money.

 Why do we like it?  

  • Good for the immune system
  • Gluten-free
  • Have a moderate smell
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2. Nutricost Organic Spirulina Powder

Nutricost Organic Spirulina Powder

Our second-best choice is Nutricost Organic Spirulina Powder. Being second on the list does not mean it is not worth buying. In fact, you may find it more affordable and useful. This one comes with dimensions of 8.82 x 5.47 x 5.47 inches and weighs about 2.28 pounds. As spirulina powders are rich in amino acids and nutrients, you should use this powder with at least 8 oz of liquid.

Nutricost Organic Spirulina Powder is completely Gluten-free, non-GMO, and Organic. This one comes in a bottle with a capacity of 2lbs along with a serving scoop. It is also 3rd party tested. The spirulina attracts heavy metals. So, to ensure this powder is healthy, it is made in GMP compliant and FDA registered facility.

The color of spirulina powder is an important factor. Nutricost Organic Spirulina Powder has a dark rich color, which means it is fresh and high quality. You can use this powder with smoothies, juices, and many more. If you want more information about this product, you can simply go to the Nutricost website, and they will give you a complete report about this product.

Why do we like it?  

  • Non-GMO
  • Gluten-free
  • Affordable
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3. Starwest Botanicals Spirulina Powder

Starwest Botanicals Spirulina Powder

The spirulina platensis used to make Starwest Botanicals Spirulina Powder is harvested in the U.S, India, and China. This one-pound bulk bag is quite affordable. It comes with the dimensions of 5 x 5 x 5 inches and is completely organic. This organic spirulina powder is certified by USDA, and is also Kosher certified.

To increase the shelf life of Starwest Botanicals Spirulina Powder, we recommend keeping it in a dry, cool, and dark area. You can use this product for at least twelve months if stored in proper conditions. The green color of this spirulina powder is quite strong. This powder is irresistible to dogs and useful for their digestive system.

This spirulina powder will provide your morning smoothie a new flavor because of its mild taste. You can use this spirulina powder in your cooking because of the low calorie, high protein content, as well as the minerals and other micronutrients. We recommend shaking down the package before cutting it open because this powder gets everywhere when spilled, and it can stain badly.

Why do we like it?  

  • USDA and Kosher Certified
  • Mild Taste
  • Great for the Digestive system
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4. Pure Hawaiian Spirulina Powder

Pure Hawaiian Spirulina Powder

Pure Hawaiian Spirulina Powder supports your immune system and is completely non-GMO. This spirulina powder is available with different capacities of 1 pound and 5 ounces. One pound of pure Hawaiian spirulina power comes with dimensions of 6 x 5 x 4 inches. One teaspoon of this powder daily is enough to keep your immune system in check.

Pure Hawaiian Spirulina Powder has 3900% more beta-carotene as compared to carrots and 31x more anti-oxidant activity than other superfoods. This spirulina powder is rich in various antioxidants, minerals, and vitamins. This company grows its own product in a USA GMP facility to provide high-quality spirulina powder.

Pure Hawaiian Spirulina Powder is Vegan, Kosher and Halal certified as well as soy-free. Unlike other brands, it comes in a bottle instead of plastic bags, which increases the shelf life of this spirulina powder. This Hawaiian spirulina powder is grown naturally in Kona, Hawaii, USA, since 1984. Due to its awesome quality, it is probably the most reviewed spirulina powder available on Amazon.

Why do we like it?  

  • Gluten and Soy-free
  • Kosher and Halal Certified
  • High Quality
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5. BareOrganics SPIRULINA Powder

Bareorganics Spirulina Powder

Last but not least on our list is BareOrganics Spirulina Powder. This raw organic spirulina powder comes in 8 ounces of the container and has dimensions of 4.13 x 4.33 x 4.13 inches. It is affordable, and USDA Certified Organic. Full of nutrients, this spirulina powder supports your natural immunity system. This spirulina powder will improve the taste and flavor of your liquids.

BareOrganics Spirulina Powder is completely gluten-free and non-GMO. This powder is keto and paleo-friendly and it has great quality. The color of spirulina powder is an important factor. BareOrganics Spirulina Powder has a dark rich color, which means it is fresh and of high quality. You can use this powder with smoothies, juices, and other refreshments.

To increase the shelf life of BareOrganics Spirulina Powder, we recommend keeping it in a dry, cool, and dark area. This spirulina powder is rich in iron, and protein. You can use this product for at least twelve months if stored in proper conditions. This spirulina powder will help you maintain a healthy digestive and immune system.

Why do we like it?  

  • USDA Certified
  • Gluten-free
  • Non-GMO
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Spirulina Powder Buyer’s Guide

Spirulina is considered one of the oldest plants on Earth. Spirulina powder is rich in nutrients, vitamins, and proteins. Due to a lot of competition, it is quite hard to buy high-quality spirulina powder. There are some points you should consider while buying spirulina powder from the market. Here is a complete guide for you to keep in mind while getting the best spirulina powder.


A high-quality Spirulina powder comes with a dark-green matte color. If your spirulina powder has a shiny surface, it means that it is covered with a coating to prevent it from breaking apart. Try avoiding a spirulina powder with a shiny surface and dust; this indicates that the spirulina has been broken apart and then compacted. As a result of this breaking, spirulina loses a lot of its nutritional benefits.


Another factor to look for while buying a high-quality spirulina powder is the scent. A high-quality spirulina powder has its own scent, which is not an unpleasant one. If your spirulina powder has a strong odor, it indicates a high oxidation rate, hence a damaged product. We recommend not using a spirulina powder that smells funny because instead of health benefits, it could make you sick.


A good quality spirulina powder has many health benefits. But to get those benefits, there are some important points you should look out for. Ensure that your spirulina powder is USDA, Kosher, and Halal Certified; it is organic, vegan, non-GMO, and Gluten-free. The facility in which it is made is GMP and FDA Approved. In this article, the products we have reviewed contain all these certifications to provide you with all of its health benefits.


The quality of spirulina depends upon the rate of dissolution. The spirulina powder should not dissolve too fast that your body cannot even absorb all the active ingredients. And it should not be too slow that your body only absorbs small amounts of nutrients contained in the spirulina powder. Above mentioned products are best because they have the perfect rate of dissolution for maximum health benefits.

Shelf life

The spirulina powder is not that expensive, but it should have at least one year of shelf life. A good quality spirulina powder has a long shelf life. Because containers and bottles are more durable than bags, we recommend buying spirulina powder with a solid packaging. Keeping your spirulina powder in dry, cool, and dark place can also increase its shelf life.