Blue Spirulina
by Double Wood Supplements · powder · 30 grams
- On the market (NIH)
- UPC 8 59793 00789 7
- DSLD label 255577
- Serving 1 g (approx. 3/4 lightly-packed scoop)
- 30 servings
Blue Spirulina by Double Wood Supplements lists 2 ingredients, 2 with an amount per serving of 1 g, such as 1 g of blue spirulina extract. Its current label entered the NIH Dietary Supplement Label Database on September 24, 2021.
What is in Blue Spirulina?
Each row as the label prints it, per serving of 1 g. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Blue Spirulina extract | 1 g | Higher than 69% of 709 products listing blue-green algae (median 500 mg). | |
| Phycocyanin | 350 mg | Higher than 90% of 40 products listing phycocyanin (median 225 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 255577 (entered September 24, 2021), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- Its 350 mg of phycocyanin is higher than 90% of the 40 phycocyanin products that print an amount; 3 list more.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
The products whose ingredient lists overlap most with Blue Spirulina's, rare ingredients counting for more.
- Spirulina AstaBlue ComplexCalifornia Gold Nutrition 2 shared, 63% alike
- Standardized Spirulina 500 mgSwanson Ultra · off the market 2 shared, 55% alike
- Organic Spirulina 2,000 mgDr. Mercola 2 shared, 48% alike
- Spirulina & Astaxanthin Blue ComplexCalifornia Gold Nutrition 2 shared, 43% alike
- Organic Spirulina 500 mgCalifornia Gold Nutrition · off the market 2 shared, 39% alike
- Organic SpirulinaCalifornia Gold Nutrition 2 shared, 39% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Suggested Use: Take 1 gram per day with or without food.
- Warnings
- Warning: Consult your physician before use.
- Do not use Blue Spirulina if you are pregnant, nursing, or under 18 years of age.
- Discontinue use and consult your doctor immediately if any adverse reactions occur. Do not use Blue Spirulina and operate heavy machinery until you know how it affects you.
- Keep out of reach of children.
- Do not exceed 10 grams per day.
- Allergens and what it does not contain
- Made with Non-GMO ingredients Gluten free
- Storage
- Storage: Store in a cool, dark place. Do not freeze or expose to moisture or heat above room temperature.
Source: label statements in DSLD label 255577.
What else is on the label?
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Proudly Made in USA.
How many labels does Blue Spirulina have?
One label is on file, entered on September 24, 2021.
- Label 255577 (current) Entered September 24, 2021 · on the market · 30 grams · UPC 8 59793 00789 7
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Double Wood LLC (distributor), Philadelphia, PA, United States. All Double Wood Supplements products.