- Provides 800mg of pure Arthrospira platensis spirulina per serving, delivering concentrated nutrition from this blue-green algae superfood.
- Cultivated in sunny southern California under controlled alkaline conditions with pH 10+ to prevent contamination and ensure purity.
- Non-GMO Project Verified, gluten-free, Kosher and Halal certified with no preservatives or artificial dyes added.
- Rich source of complete protein containing all essential amino acids, plus naturally occurring vitamins and minerals.
- Rigorously tested with advanced analytical tools to ensure no toxins, contaminants, or cyanobacterial toxins are present.
About Nature’s Sunshine Spirulina
Spirulina stands as one of nature’s most concentrated sources of nutrition, earning its reputation as a true superfood. This blue-green algae has been valued as a nutritional powerhouse for centuries, with ancient Aztecs harvesting it from alkaline lakes and drying it into nutrient-dense cakes. Today, Nature’s Sunshine brings you this exceptional algae in convenient capsule form, delivering 800mg of pure Arthrospira platensis per two-capsule serving.
What makes spirulina truly remarkable is its incredible nutritional density. This microscopic algae contains up to 70% protein by weight, making it one of the richest plant-based protein sources available. Unlike many plant proteins, spirulina provides all essential amino acids your body needs, making it a complete protein comparable to animal sources. This makes it particularly valuable for vegetarians, vegans, and anyone looking to increase their protein intake naturally.
Pure California-Grown Quality
Nature’s Sunshine spirulina is cultivated in sunny southern California, away from cities and polluted air, under carefully controlled conditions. Our cultivation partner grows the spirulina in alkaline water with a pH of 10+ specifically to prevent the growth of toxic algae that can contaminate other spirulina products. This controlled environment ensures that every batch meets our strict purity standards.
Quality assurance is paramount in spirulina production. We examine every batch with advanced technological and analytical tools to ensure no toxins, contaminants, or cyanobacterial toxins are present. This testing is crucial because some spirulina supplements on the market have been found contaminated with microcystins and other harmful compounds, which is why choosing a trusted source like Nature’s Sunshine is essential.
Nutritional Powerhouse
Beyond its impressive protein content, spirulina contains essential B vitamins, particularly B12 and provitamin A (beta-carotenes), along with important minerals like iron. The algae is also rich in phenolic acids, tocopherols, and gamma-linolenic acid, providing a comprehensive array of nutrients that support overall wellness.
Unlike many plant foods, spirulina lacks cellulose cell walls, making it easily digestible and allowing for optimal nutrient absorption. This unique characteristic means your body can readily access and utilize the nutrients spirulina provides, maximizing the benefits of each capsule.
Traditional Use and Modern Science
Spirulina has been used traditionally as food for its nutritional values dating back to the 16th century. Spanish invaders discovered that the Aztecs in the Valley of Mexico were collecting this blue-green matter from lagoons and drying it into cakes, while Aztec messengers may have consumed it during their long runs for sustained energy.
Modern research has confirmed spirulina’s safety, with the algae now listed by the US Food and Drug Administration under the category Generally Recognized as Safe (GRAS). Toxicological studies have proven spirulina’s safety profile, and microalgae have been used for more than 10 years as dietary supplements without significant side-effects.
Why Choose Nature’s Sunshine Spirulina
Nature’s Sunshine Spirulina is non-GMO Project Verified, gluten-free, Kosher and Halal certified, and completely free from preservatives and dyes. This commitment to purity means you’re getting spirulina in its most natural form, without unnecessary additives or processing agents that could compromise its nutritional value.
Each bottle contains 100 capsules, providing 50 servings when taken as directed. The convenient capsule form makes it easy to incorporate this nutritional powerhouse into your daily routine, whether you’re looking to support your protein intake, boost your nutrient consumption, or simply add more whole food nutrition to your diet.
Recommended Usage
Take 2 capsules with a meal three times daily. For best results, use consistently as part of a balanced diet and healthy lifestyle.
Frequently Asked Questions
Spirulina contains all eight essential amino acids that your body cannot produce on its own, making it a complete protein. This is rare among plant-based foods and makes spirulina particularly valuable for vegetarians, vegans, and anyone looking to increase their protein intake from natural sources.
Our spirulina is grown in controlled alkaline conditions with pH 10+ in southern California, away from polluted areas. We use advanced analytical testing to verify that each batch is free from toxins, contaminants, and cyanobacterial toxins that can affect other spirulina products. This rigorous testing ensures you receive pure, safe spirulina.
If you have known allergies to algae or sea vegetables, consult with your healthcare provider before taking spirulina. Some people may experience allergic reactions to spirulina, so it’s important to start with a small amount and monitor your body’s response.
While both are nutrient-rich algae, spirulina is blue-green and spiral-shaped, while chlorella is bright green and spherical. Spirulina contains more protein and is easier to digest due to its lack of cellulose cell walls, while chlorella is higher in vitamin A and omega-3 fatty acids. Both offer unique nutritional benefits.
Individual results may vary, but many people notice increased energy and overall wellness within a few weeks of consistent use. For best results, take spirulina consistently as part of a balanced diet and healthy lifestyle. Always consult with your healthcare provider for personalized guidance.
Why Shop with Us?
- Over 500 Quality Nature's Sunshine Supplements Available
- Outstanding customer service.
- Enjoy free U.S. shipping on orders over $100—delivered quickly and reliably.
- Shop with confidence using encrypted payment processing and trusted online security.
- Trusted Quality Standards - Nature's Sunshine uses rigorous testing and premium ingredients to ensure every supplement meets the highest standards for purity and potency.
Satisfaction Guaranteed
We stand behind every Nature’s Sunshine product. If you’re not completely satisfied with your purchase, simply contact us to arrange a return—we’ll provide a full refund, no questions asked. Your wellness and satisfaction are our top priorities.
Who is Spirulina For?
- Vegetarians and vegans seeking complete protein sources
- Athletes and active individuals wanting natural nutrition support
- Health-conscious people looking to increase their nutrient intake
- Those interested in whole food supplements over synthetic vitamins
- Anyone wanting to add superfood nutrition to their daily routine





