5 ways to identify good Spirulina

When buying Spirulina (especially online), you can do a few quick checks to ensure that your paying
for the real deal. In many cases, the cheapest might not be the best (in fact, might actually do you harm).

1. Read the product’s ingredients
The Spirulina should be 100% organic and contain no additives, preservatives, or artificial colours.
A low-grade Spirulina often contains compression agents (caking agents) or fluidity agents (lubricants).
If you see any fillers, caking agents on the packaging, skip it.

2. Where is it from?

Spirulina can come from several sources, the quality of the water, air, and nutrients play an important role in determining what the finished product. Due to the dumping of toxic wastes and recent radiation
problems near oceans and streams, avoid buying any Spirulina grown in oceans or coastlines.

Look for Spirulina produced away from populated areas and deep inland with low rainfall (rain water is not a good source due to air carrying pollutants), and ideal temperature range fluctuations (30-39 degree celsius), low humidity and sunlight throughout the year. This ensure consistent batches of spirulina throughout the year is produced with minimal nutrient changes.

3. Check the Certs

This is inherently true for internet purchases, to ensure you buy the real products always ask to verify the certs. You should be able to find it on the websites [Like ours] or by emailing them. Then cross check with the certifying bodies that the certs are real. If the seller has problems giving you a copy of the cert, they might not actually had it certified. Remember to get from trustworthy sources only.

There’s only that much you can do before purchasing.
Once you purchase the Spirulina, open it up and do the next 2 checks.

4. Visual appearance

The Spirulina should exhibit a pleasant, dark blue-green colour that is not shiny under normal lighting.
A shiny colour indicates that a layer of caking agent is applied on the Spirulina.
The package should not be very dusty (ie lots of powder found at the base of the packaging).
The presence of dust also indicates that the Spirulina has been atomised losing some of its nutritional qualities.


Picture when looked from close up should not be tablet shiny or white-ish.

5. Sniff it (The smell test)

Spirulina definitely has a particular smell, however this smell shouldn’t be unpleasant.
Take a few tablets and take a deep sniff from the tablets. The smell should be mild and not obnoxious.
If it has a strong smell, it might have undergone oxidation and no longer safe for consumption.

6. [Optional checks] Halal or Kosher certs

Ensure that the plant is certified Halal or Kosher, proper Spirulina producers would be located far away from other industries and will not have other plants nearby. They should only be processing Spirulina within their compound, achieving a halal/kosher cert should not be a problem.


When purchasing Spirulina, there lots of options, sizes and choices available. Using the above checks diligently ensures your putting the correct stuff into your system. Always try to do the 5 easy checks (especially the last 2 on newly opened bottles/packs)!

To good health!

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