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The 8 Best pure spirulina powders of 2025

Are you trying to find pure spirulina powders among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling pure spirulina powders on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 17 hours of research and did 29 pure spirulina powders tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best pure spirulina powders you can buy today

No. 1
Micro Ingredients Organic Spirulina Powder, 16 Ounce, Raw Spirulina (Arthrospira Platensis), The Richest Sources of 70% Vegan Protein, Containers Minerals, Vitamins, Non-GMO & Non-Irradiation
  • USDA Raw Spirulina Organic Powder, 1 Pound (16 Ounce), Non-Irradiated and Vegan Friendly.
  • Rich in Vegan Protein, Enzyme, Fiber, Amino Acids (Omega 3 6 9, GLA, Arginine), Flavonoids, Immune Vitamins (Vitamin A, Vitamin B Complex, Vitamin C, Vitamin K and Biotin), Minerals (Magnesium, Zinc, Calcium, Potassium), Chlorophyll, Phytonutrients and Antioxidants.*
  • No GMOs, No Additives, No Preservatives, No Fillers, No Artificial Colors, No Flavor, No Soy and No Gluten.
  • Scoop included to get the measurement every time. Take it daily with or between meals by adding it to a shake or smoothie, see what the most nutrient dense food on the planet is all about.
  • Powder lover? Take it naturally in powder for higher concentration, quicker absorption, easier on the stomach, and more ways to have fun!
No. 2
Pure Original Ingredients Spirulina Powder (1 lb) Green Algae Superfood with Phycocyanin
  • Pure Original Ingredients Spirulina Powder is made from a single ingredient, providing a pure undiluted supplement
  • Spirulina is a natural source of Essential Proteins
  • Spirulina is cultivated worldwide
  • Always Pure; Never any additives or fillers
  • Packaged in Utah, USA
SaleNo. 3
Nutrex Hawaii, Pure Hawaiian Spirulina Powder, Vegan, Supports Immune System, Heart, Cells and Energy, 5 Ounce
  • Get your daily dose of one of nature’s original superfoods with Pure Hawaiian Spirulina; We grow it naturally on our farm in Hawaii and pack each tablet with essential nutrients for overall health
  • Pure Hawaiian Spirulina supports healthy aging by boosting the immune system, provides nourishment for a healthy and active lifestyle and supports normal cholesterol and lipid profiles
  • Take 1 tsp daily on its own or mix it into food or a beverage; An excellent source of vitamins A, K1, K2, B12, iron as well as amino acids, carotenoids, antioxidants and phycocyanin
  • Our spirulina is vegetarian, vegan, and free of GMOs, gluten, lactose, soy, pesticides, herbicides, and solvents
  • Grown on our sustainable Hawaiian farm with natural sunlight and lava-filtered water; A healthy environment for healthy products for a healthy you
No. 4
Zazzee Organic Spirulina Powder, 2.2 Pounds (1 KG), USDA Certified, 303 Servings, 100% Pure, Non-Irradiated, Mess-Free Wide Mouth Container, Fresh Smell and Neutral Taste, Vegan, Non-GMO, Gluten-Free
6,229 Consomer Reviews
Zazzee Organic Spirulina Powder, 2.2 Pounds (1 KG), USDA Certified, 303 Servings, 100% Pure, Non-Irradiated, Mess-Free Wide Mouth Container, Fresh Smell and Neutral Taste, Vegan, Non-GMO, Gluten-Free
  • 2.2 POUNDS / 303 SERVINGS: Our 100% Pure, Certified Organic Spirulina comes in a 2.2 pound (1 KG) container. With a standard serving size of one level teaspoon, each container provides 303 servings.
  • USDA CERTIFIED ORGANIC: Our Spirulina Powder is grown and cultivated in natural mineral water sourced from over 300 meters underground. It meets the strict organic standards of the USDA, which ensures organic ingredients, approved processing methods, and stringent supervision.
  • PURE / NON-IRRADIATED: Our Spirulina Powder contains only USDA Certified Organic Spirulina Powder. USDA Certification ensures that our Spirulina is non-irradiated and free of heavy metals, herbicides, pesticides, and other contaminants. This product is free of additives, fillers, binders, wheat, soy, gluten, milk, eggs, nuts, and fish.
  • CONVENIENT CONTAINER: Our Spirulina Powder is packaged in an air-tight container. The container is easy to open and close, and the powder can be cleanly accessed through the wide top opening, providing a more convenient option than bags.
  • QUALITY PRODUCTION: Your health and safety are our priority. Our Spirulina Powder is manufactured in the USA, in a compliant facility with adherence to good manufacturing practices and stringent quality control.
No. 5
Vimergy Spirulina Powder – Concentrated Plant Protein Supports Immune Health & Cardiovascular Function – Vegan, Kosher, Gluten-Free – 250g
  • GRAM FOR GRAM DELIVERS 5X THE PROTEIN FOUND IN EGGS. Vimergy Spirulina is a highly bioavailable green superfood powder. In fact, more than 50% of each serving of Vimergy Spirulina Powder is pure plant protein. Eco-friendly spirulina cultivation can yield 200x more protein per acre than cattle. It’s bursting with phyto-antioxidants not typically found in animal proteins like whey. It’s an easy way to support your overall health.*
  • FASTER ABSORPTION vs. CAPSULES, GUMMIES, or TABLETS.* Spirulina doesn’t have a cell wall, so it offers enhanced digestibility and quick access to the powerful nutrients inside. Our concentrated spirulina powder has a mild taste and is easy to combine with water, juice, or a smoothie. Regular size product (250g). Also available in Trial size (125g) and Value size (500g).
  • SUPPORTS FOUNDATIONAL HEALTH* Vimergy organic spirulina powder is loaded with powerful phytonutrients that help your body meet its daily challenges.* By supporting and regulating immune cell number and functions, spirulina benefits your immune health.* This easy-to-digest green superfood powder also promotes cardiovascular function, by helping you maintain a healthy cholesterol profile.*
  • EXPERIENCE MIXOLOGY BY VIMERGY. As someone who takes charge of their well being, you decide what your body needs. That’s why it’s essential to incorporate Vimergy products into your daily routine. Unlike multivitamins, our powders provide plenty of versatility. They can be enjoyed mixed with water, juice, or smoothies. You can even sprinkle them on your favorite fruit or even oatmeal and yogurt. We provide the ultimate in mixology-based customization to support your health and wellness.
  • PEACE OF MIND CLEAN Vimergy spirulina super greens powder is formulated without anti-caking agents, fillers, binders, sugar, colors, or flavors. Vimergy Spirulina Powder is non-GMO, vegan, kosher and paleo friendly. For a daily health boost, just add a scoop of our natural green powder to a glass of water or juice, or a smoothie.
No. 6
PURE ORIGINAL INGREDIENTS Spirulina Powder (4 oz) Green Algae Superfood with Phycocyanin
  • Pure Original Ingredients Spirulina Powder is made from a single ingredient, providing a pure undiluted supplement
  • Spirulina is a natural source of Essential Proteins
  • Spirulina is cultivated worldwide
  • Always Pure; Never any additives or fillers
  • Packaged in Utah, USA
No. 8
Food to Live Organic Spirulina Powder, 1 Pound – Non-GMO, Kosher, Raw Blue-Green Algae, Vegan Superfood, Bulk, Non-Irradiated, Pure Vegan Green Protein, Rich in Vitamins & Minerals, Great for Drinks
  • VEGAN PROTEIN SOURCE: Organic Spirulina Powder protein content (65g per cup) makes it a vegan protein superfood for athletes.
  • ORGANIC PRODUCT: Food to Live Organic Spirulina Powder is non-toxic, non-GMO, and 100% organic.
  • VEGAN IRON-RICH FOOD: A cup of spirulina raw powder contains over 100% of the recommended daily dose of iron.
  • VERSATILE SUPERFOOD: You can enjoy Food To Live Organic Spirulina Powder in smoothies, sauces, baked goods, salads and hummus.
  • POTENT ANTIOXIDANT COCKTAIL: Organic Spirulina Powder is full of various antioxidants that boost your wellbeing and immunity.
No. 9
BNLABS Spirulina Powder Organic 225g - 64 Servings 3.5g Serving Size - USDA Certified - RAW Nutrient Dense Over 70% Protein Per Serving - Purest Source Vegan Protein - Superfood
  • 100% RAW ORGANIC SPIRULINA; Nothing Else! Nothing Added, Completely Pure, Natural and Health Friendly, USDA Certified Organic, Non-GMO, Gluten & Soy Free, while being Third Party Tested. Each serving is 1.5 teaspoons and contains 32 servings per bag.
  • OUR SPIRULINA CONTAINS OVER 70% PROTEIN PER SERVING; BN Labs Spirulina Powder is superior quality and contains just the best 100% pure spirulina nutritive ingredient we could find. Rich in protein containing all the essential amino acids.
  • HOW WE DO THINGS DIFFERENTLY; Our Spirulina is USDA-CERTIFIED, Treated by heat only, non-irradiated, 100% pure, vegan, no additives or preservatives, fillers free, non-GMO, gluten-free, no artificial colors or flavors.
  • SPIRULINA COMPARED WITH CHLORELLA; Spirulina contains more essential amino acids, iron, protein, B vitamins, and vitamins C, D and E than chlorella. In natural powdered form, the result is a higher concentration, quicker absorption, and easier digestion.
No. 10
Organic Blue Spirulina Powder - 100% Pure Superfood, Blue-Green Algae, No Fishy Smell, Natural Food Coloring for Smoothies & Protein Drinks - Non GMO, Gluten-Free, Vegan + USDA Certified, 30 Servings
  • Jumpstart Your Health - Blue Spirulina is considered a superfood due to the many health benefits it offers. Packed with vitamins, minerals, iron, and antioxidants, it has been known to support the immune system, improve digestion, increase metabolism, enhance energy levels, and promote enhanced mental cognition.
  • Create Photo-Worthy Dishes - Toss your dyes and use spirulina to enhance your next culinary creation with a vibrant pop of blue. You will be pleasantly surprised by the intensity of its pigment. The powder form makes it easy to add to smoothies, shakes, yogurt, or baked goods - the possibilities are endless!
  • A Single Revolutionary Ingredient - We harvest our spirulina from algae grown naturally in mineral-rich alkaline lakes. It's then carefully extracted, dried, and packaged as a single ingredient with no added fillers or preservatives. You'll receive your superfood in its organic, pure form.
  • Don't Compromise on Quality - When it comes to your health, you should never have to compromise. Lone Star Botanical's blue spirulina is organic, vegan, gluten-free, dairy-free, and soy-free.
  • One Month's Supply - When using the included 1 tsp scoop, Lone Star Botanical's blue spirulina pouch yields approximately 30 servings.
No. 11
Ancestral Roots - Organic Spirulina Powder (5 oz) USDA Certified Vegan Spirulina Powder I 100% Pure Superfood for Optimal Health & Immune Support.
  • ⚡ SUPERCHARGE YOUR HEALTH: Harness the power of this natural superfood to enhance your vitality by boosting your immune system, lower cholesterol levels, and provides nourishment for a healthier lifestyle.
  • 🌱 ORGANIC SUPERFOOD: With roots dating back to the Aztec civilization, Spirulina organic is a time-tested superfood. Rediscover the remarkable benefits of is 100% organic and pure spirulina powder that was sustainably cultivated in an eco-friendly manner!
  • 💪 RICH IN NUTRIENTS: Our organic spirulina powder contains a high amount of natural antioxidants, vitamins and minerals, essential for your physical and mental well-being. An excellent source of protein and iron.
  • 🚀 RAPID ABSORPTION: Mix our Vegan spirulina powder with a shake, delicious smoothie, guacamole dip or other recipe and you’ll enjoy the wonderful benefits of this superfood in powder form which allows for higher concentration, faster absorption and easier on the stomach.
  • 😃 NUTRITION FOR ALL: Our organic Spirulina powder is certified organic, vegan friendly, gluten free and earth kosher. It's the perfect dietary food for everyone, regardless of age, gender, or dietary restrictions.
No. 12
KOS USDA Organic Spirulina Powder, Natural Taste - 100% Pure, Non-Irradiated Vegan Green Blue Spirulina Superfood Powder, Plant Based - Rich in Protein, Vitamins, Antioxidants & Fiber, 60 Servings Bag
  • Blue green queen: A health journal opined, "gram for gram, spirulina may be the single most nutritious food on the planet". Boost your day with one of the oldest life forms that is also heralded by the World Health Org as a food of the future
  • Benefits: Spirulina is a marine sourced type of cyanobacteria that contains phytonutrients. Easily digestible NASA has used it as a dietary supplement for astronauts and those same benefits can still be had when consumed on planet earth
  • Superfood nutritional staple: No stranger to the health-concious, this pantry essential dates back to ancient civilizations
  • Recipes: Add to smoothies, juices, breakfast bowls and more for a powerful superfood addition to your daily nutrition
  • Organic certified and third party tested: USDA Organic Certified by CCOF and made in a GMP certified facility KOS offers a product you can trust
SaleNo. 13
MAJU's Organic Spirulina Powder .5 lb, Microcystin Free, Non-Irradiated, Preferred to Chlorella, Preferred to Hawaiian & Blue Algae, Pure Vegan Green Protein
  • PURE & POWERFUL: Experience the cleanest and greenest spirulina powder available. Our USDA organic spirulina is cultivated in isolated freshwater container greenhouses to protect from wild contaminants. Our meticulous 5-step clarification process includes ozone sterilization to ensure ultimate purity before being hot air dried and powdered. Unlike other brands, our spirulina has no fish food aquarium taste, allowing you to enjoy its smooth, clean flavor every day – no capsules necessary!
  • BURST OF NUTRIENTS: Preferred to Hawaiian or chlorella, our raw, non GMO, green algae superfood supplement is higher in nutrients. It's a complete protein with all essential amino acids, including rare GLA. Packed with minerals, vitamins (even more than blueberries), healthy omegas, chlorophyll, and phytonutrients, our alga is one of the most nutrient-dense health foods on the planet. Plus, it's one of the only natural sources of Vitamin B12 found in nature, making it truly exceptional.
  • VERSATILE BENEFITS: Discover the numerous benefits of spirulina now. It may supplement natural energy levels, bone and joint health, boosts immunity, and aids digestion. Offering nutrients and antioxidants in bulk, you can easily experience the beauty and rich bio life spirulina has to offer by adding to your daily routine. Mix it in liquid, juice, smoothies, tea, or shake it over popcorn or guacamole. You can even enjoy it straight with a bit of honey.
  • MAJU’S 30-DAY PROMISE: Take advantage of our 30-day guarantee. Don't like it? No questions asked, you'll get a refund. We're in this with you for the long haul. No hit n' run superfoods here. We're committed to your satisfaction and ensuring you have a positive experience with our superfood.
  • OUR EPIC JOURNEY: At Maju, our mission is to provide exceptional products made by nature. Started by two friends, we carefully grow our products in clean conditions in countries we trust, then carefully package in the USA. Because we personally use these products, we pay meticulous attention to every detail. We only sell what we truly love, ensuring you receive the best nature has to offer. Join us on our epic journey and experience the difference.
No. 14
Pure Planet 100% Pure Spirulina Powder, 8 OZ
  • Pure Planet's California Grown Spirulina Is Nature's Most Complete Nutrient Source
  • Pure Planet
No. 15
Nutricost Organic Spirulina Powder 2 LB - Pure, Certified Organic Spirulina
1,234 Consomer Reviews
Nutricost Organic Spirulina Powder 2 LB - Pure, Certified Organic Spirulina
  • Organic Spirulina Powder
  • Superfood Green Algae
  • 2LBS Per Bottle, Serving Scoop Included
  • Vegetarian Friendly, Non-GMO, Gluten Free, Organic, 3rd Party Tested
  • Made in a GMP Compliant, FDA Registered Facility
SaleNo. 16
Nutrex Hawaii, Pure Hawaiian Spirulina - 1000 mg Tablets - Hawaiian Grown Natural, Nutrient Rich Superfood - Immune Support, Detox & Energy – Vegan Complete Protein, Non-GMO, Original, 180 Count
  • Boosts immunity & energy: Clinical research shows spirulina boosts immunity by positively impacting antioxidant activity & immune markers in your body’s cells. Gram per gram, Hawaiian Spirulina has 3,900% more beta carotene than carrots & 31 times more antioxidant activity than the immune-boosting superfood, blueberries. This antioxidant capacity supports cellular health and immunity.
  • Superior nutrition: Hawaiian Spirulina is full of antioxidants, vitamins and minerals, and contains some of the highest levels of protein of any plant or animal source. This superfood contains up to 70% digestible, complete protein, high levels of iron, beta carotene, and other healthful nutrients including B12, vitamin K, chlorophyll, and phycocyanin.
  • It matters where it’s grown. Hawaiian Spirulina is grown with craft and science on our Kona Coast farm allowing us to ensure consistent purity and high quality. Carved out of lava fields, and fed by bright natural Hawaiian sunlight, clean crisp air, and lava-filtered Hawaiian aquifer water – this healthy environment supports a healthy farm.
  • Highest quality & safety: We grow our own product in a USA GMP certified facility with extensive quality control & lab testing of every batch. Vegan –Kosher – Halal - Gluten & Soy Free - No fillers, preservatives, or dyes - Farm to Bottle.
  • Better than organic: Because organic-labeled spirulina uses animal waste as fertilizer in the water, it’s ONLY grown outside the USA, usually in China, resulting in high levels of contaminates & heavy metals, bad taste & smell, & is usually irradiated.
No. 17
PURE ORIGINAL INGREDIENTS Spirulina Powder (8oz) Plant-Based Complete Protein, Non-GMO
  • Pure Original Ingredients Spirulina Powder is made from a single ingredient, providing a pure undiluted supplement
  • Spirulina is a natural source of Essential Proteins
  • Spirulina is cultivated worldwide
  • Always Pure; Never any additives or fillers
  • Packaged in Utah, USA
No. 18
Nuvalsa Organic Spirulina Powder 1lb – 100% Pure Superfood Supplement from Blue Green Algae Non GMO for Smoothie & Protein Drink, Vegan & USDA Certified Organic - 100 Servings
  • Your New Vitamin Pal – Nutrient density reaches new heights with spirulina powder. Spirulina contains more protein than eggs and more iron than spinach. This superfood packs a powerful punch in a tiny serving.
  • Boost Your Body – Spirulina has an incredible nutrient profile that includes phytonutrients. When you add spirulina powder to your diet, you may experience benefits to your immune system, digestion, and mood.
  • Curb the Afternoon Blues – Ditch the caffeine and reach for a superfood that gives you sustained energy without the crash. Organic spirulina powder can give you the gentle boost that you need to finish your tasks with a little more gusto. The vitamin B1 (or thiamin) contained in spirulina supports maintained energy levels throughout the day.
  • Level Up Your Smoothie – Are you ready for the next level of nutrition? Enter organic spirulina! Not only is it a vitamin powerhouse, it’s also a protein hero. If you’re trying to increase your protein intake, counting macros, or looking for a post-workout snack, spirulina powder is your answer! Just one tablespoon contains 4g of protein.
  • No Junk, No Regrets – Nature does it best all by itself; we leave out the fillers and dyes. We’re proud to offer you a single-ingredient superfood that’s USDA Organic and non-GMO. It’s safe for those maintaining gluten-free, dairy-free, vegetarian, and vegan lifestyles. Your health is always first at Nuvalsa.
No. 20
Anthony's California Spirulina Powder, 8 oz, Product of USA, Gluten Free, Non GMO
  • California-Grown Spirulina Powder
  • Batch Tested and Verified Gluten Free
  • Proudly Grown in California!
  • This blue-green algae is a complete protein with all essential amino acids.
  • Blend into smoothies and juices, sprinkle on foods or add it to desserts!

How to choose a good pure spirulina powders

Does the idea of finding a fantastic pure spirulina powders make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in pure spirulina powders. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top pure spirulina powders products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top pure spirulina powders on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top pure spirulina powders brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top pure spirulina powders based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the pure spirulina powders were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good pure spirulina powders, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your pure spirulina powders.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting pure spirulina powders for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our pure spirulina powders. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what pure spirulina powders should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on pure spirulina powders.