BulkSupplements.com Organic Spirulina Powder
- Spirulina
- Powder
- 1.1 pounds
- Gluten Free
A large, gluten-free bulk bag of organic spirulina powder at 3 grams per serving, suited to anyone comfortable measuring their own doses into drinks. Good value per serving if you already use spirulina regularly.
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How it ranks among the 30 spirulina we track
4.6★ across 907 Amazon ratings, Bayesian-smoothed toward the category average.
907 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 30 spirulina we track - how the scorecard works · full spirulina data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
BulkSupplements.com Organic Spirulina Powder is a 500 gram, 17.64 ounce bag of green spirulina powder at 3 grams per serving, sold as a vegan-friendly, gluten-free superfood powder.
BulkSupplements typically sells raw powders in bulk without added flavoring or capsule casing, and this spirulina follows that pattern, sold by weight rather than in pre-measured capsules. At 3 grams per serving from a 500 gram bag, the container holds roughly 166 servings, though the label sets the exact serving guidance. Being unflavored and in powder form means it needs mixing into a smoothie or juice to be palatable for most people, since raw spirulina has a strong taste on its own.
- 500 gram (17.64 oz) bag
- 3 grams per serving
- Organic certified
- Vegan friendly, gluten free
Who it's for
Suited to people who want raw spirulina powder in bulk to measure and mix themselves, typically into smoothies, rather than a pre-dosed capsule format. Not the right pick for anyone wanting convenience over a bulk raw powder they have to portion out.
Strengths and trade-offs
Drawn from this product's published specifications.
- Certified organic spirulina
- Large 500 gram bulk bag
- Vegan-friendly and gluten free
- Unflavored, strong taste needs mixing into other drinks
- Powder requires self-measuring, not pre-dosed capsules
Performance notes
At 3 grams per serving, the 500 gram bag works out to a large number of servings, making it a bulk buy rather than a short-term supplement bottle. As a raw powder, it has a strong taste that most people cut with juice or a smoothie rather than taking in water alone.
Specifications
| Brand | BulkSupplements.com |
|---|---|
| Form | Powder |
| Count | 1.1 pounds |
| Diet | Gluten Free |
| Flavor | Unflavoured |
How it compares
This product against the closest alternatives we track in spirulina.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| BulkSupplements.com Organic Spirulina PowderThis product | 4.6 / 5 | 907 | 4.2 / 5 |
| Nutrex Hawaii Pure Hawaiian SpirulinaNutrex | 4.6 / 5 | 10,856 | 4.5 / 5 |
| Micro Ingredients Organic Spirulina SupplementMicro | 4.6 / 5 | 9,927 | 4.5 / 5 |
| NOW Foods SupplementsNow | 4.6 / 5 | 8,124 | 4.5 / 5 |
| Kate Naturals Organic Spirulina Powder for Immune Support and Antioxidants. Nutrient…Kate | 4.5 / 5 | 5,063 | 4.5 / 5 |
Similar spirulina from other brands
Questions about the BulkSupplements.com spirulina
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much spirulina is in one serving?
One serving is 3 grams of the powder.
Is this spirulina powder organic?
Yes, it is certified organic.
Is this product vegan?
Yes, it is labeled vegan-friendly.