Which is the cheapest spirulina?

ZENement Espirulina Ecológica 600 Comprimidos Veganos from DosFarma, at €0.025/capsule (600 capsules pack for 14,99 €). It sits at verification level 1 out of 4. Cheap is not the same as well scored: price is 35 % of the mark and most of the rest is how verifiable its certification is.

How much does a capsule of spirulina cost?

Between €0.025/capsule and €1.149/capsule across the 3 stores compared, with a median of €0.083/capsule. That is the price per capsule, not per pack: two tubs at the same price can cost twice as much as each other depending on what is inside.

What certification should spirulina have?

Of the 30 products compared, 0 reach level 4 (the certification is backed by a third party: either we checked it with the body that issues it, or the product carries in its name a trademark that requires a third party behind it, such as Creapure or IFOS) and 0 reach level 3 (a lab report published by the brand itself). The remaining 30 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.

Home / Spirulina

Which spirulina should you buy · data from October 15, 2026

The best spirulina of 2026

An alga sold as a superfood, with barely one small trial on performance. Its B12 does not work as B12, and batch control matters a lot.

from €0.025/capsulemedian €0.083up to €1.149/capsule

What spirulina does, at what dose and on what evidence

† Some links are affiliate links — they do not change the ranking

Some store links are affiliate links: if you buy through them, this site may earn a commission at no extra cost to you. It changes nothing in the ranking: the score is computed beforehand and without reading those links, and products with no affiliate programme appear exactly the same. How it is calculated.

Nothing is claimed about the formula in this category. None of these stores publishes how much active ingredient each dose carries, so the score comes from the price per capsule and the verification level, and nobody appears here as well or badly dosed: we do not have the data and we do not make it up.

Cheapest per capsule

ZENement Espirulina Ecológica 600 Comprimidos Veganos

€0.025/capsuleNo third-party seal

€0.025 per capsule: the cheapest of those that meet the category's requirements and are not underdosed.

At DosFarma · see how its score breaks down

Best value for moneyOur pick

Sotya Espirulina 400mg 200 comprimidos

€0.017/capsuleNo third-party seal

Score 71 out of 100: the highest mark, with 35 % of the weight on price per capsule.

At DosFarma · see how its score breaks down

Full comparison

products compared

from €0.017 to €1.149

per capsule

at verified level 4

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Products sorted by score (recommended)
#	Product	Store
01	Sotya Espirulina 400mg 200 comprimidos5.0 (5) · 0/1 requirementsBest value	DosFarma+€3.99 delivery	€3.49	€0.017 /capsule	71
02	ZENement Espirulina Ecológica 600 Comprimidos Veganos · 1/1 requirements	DosFarma+€3.99 delivery	€14.99	€0.025 /capsule	67
03	Aldous Bio Espirulina Ecológica 600 Comprimidos · 1/1 requirements	DosFarma+€3.99 delivery	€26.99	€0.045 /capsule	56
04	Aldous Bio Espirulina y Chlorella 600 Comprimidos · 1/1 requirements	DosFarma+€3.99 delivery	€28.99	€0.048 /capsule	55
05	Go Phyto Spiruline Bio 200 caps · 0/1 requirements	PromoFarma	€6.98	€0.035 /capsule	53
06	Ana Maria Lajusticia Spirulina 160 Comprimidos · 1/1 requirements	DosFarma+€3.99 delivery	€12.99	€0.081 /capsule	50
07	El Granero Integral Spirulina BIO 180 Comprimidos de 500mg · 1/1 requirementspricey now	DosFarma+€3.99 delivery	€14.99	€0.083 /capsule	50
08	Swanson Espirulina 500mg 180 tabletas4.8 (11) · 1/2 requirements	HSN+€3.99 delivery	€11.49	€0.064 /capsule	49
09	Pridaho Phytofarma Spirulina Pridaho 300 Comprimidos · 0/1 requirements	DosFarma+€3.99 delivery	€13.99	€0.047 /capsule	49
10	PHARMASCIENCE Spirulina Vitamina C Tonus 200 caps	PromoFarma	€11.46	€0.057 /capsule	49
11	Nature Essential Espirulina 400mg 250 Comprimidos · 0/1 requirements	DosFarma+€3.99 delivery	€11.99	€0.048 /capsule	48
12	SOLNATURAL Espirulina 200tabs · 0/1 requirements	PromoFarma	€9.65	€0.048 /capsule	48
13	Forticoll Bio Espirulina 180 Comprimidos5.0 (1) · 0/1 requirementslowest seen	DosFarma+€3.99 delivery	€8.99	€0.050 /capsule	48
14	Dietisa Marcus Rohrer Spirulina 540 Comprimidos · 1/1 requirements	DosFarma+€3.99 delivery	€59.99	€0.111 /capsule	48
15	Nat&Form Nat & Form Spirulina Orgánica Vegana Tonus 200 caps	PromoFarma	€12.92	€0.065 /capsule	47
16	INTEGRALIA Spirulina Ecológica 500 mg 100 caps · 1/1 requirements	PromoFarma	€13.89	€0.139 /capsule	47
17	Santiveri Alga Espirulina Bio 100 Comprimidos · 1/1 requirements	DosFarma+€3.99 delivery	€15.45	€0.154 /capsule	46
18	Pridaho H4U Spirulina + Vitamina B12 100 Comprimidos · 0/2 requirements	DosFarma+€3.99 delivery	€5.95	€0.060 /capsule	44
19	Mensan Espirulina Bio 500 mg 180 caps · 0/1 requirements	PromoFarma	€13.49	€0.075 /capsule	44
20	FENIOUX Spirulina 300 mg 200 caps	PromoFarma	€29.52	€0.148 /capsule	42
21	Naturactive Espirulina Naturactiva 60 caps5.0 (1) · 1/2 requirementslowest seen	PromoFarma	€10.67	€0.178 /capsule	42
22	NOVADIET Espirulina 60 Cápsulas Vegetalesgood price	PromoFarma	€9.49	€0.158 /capsule	42
23	ERBAMEA Espirulina 50 caps	PromoFarma	€11.24	€0.225 /capsule	41
24	Energy Feelings Energy Spirulina 120 caps · 0/1 requirements	PromoFarma	€16.79	€0.140 /capsule	40
25	Soria Natural Spirulina 60 comprimidos · 0/1 requirements	DosFarma+€3.99 delivery	€10.58	€0.176 /capsule	39
26	Solgar Espirulina 750 mg 80vcaps5.0 (1) · 0/1 requirements	PromoFarma	€14.79	€0.185 /capsule	39
27	Alfa Herbal Espirulina Herbal 90 caps · 0/1 requirements	PromoFarma	€17.45	€0.194 /capsule	39
28	MARCUS ROHRER Bio Espirulina 180 caps · 0/1 requirements	PromoFarma	€36.39	€0.202 /capsule	39
29	Solgar Espirulina 80 Cápsulas Vegetales · 0/1 requirements	DosFarma+€3.99 delivery	€17.99	€0.225 /capsule	38
30	Natural Nutrition Phycospir Espirulina Bio 30 caps · 0/1 requirements	PromoFarma	€34.47	€1.149 /capsule	36

30 products in this table

What you are looking at. The score is 35 % price per capsule against the cheapest in the category, 35 % verifiable quality (certification, purity and additives), 20 % the category's own requirements and 10 % the buyers' rating at the store. Every product explains its mark line by line on its own page. How it is calculated.

Questions about spirulina

Answered with the data on this page

Which spirulina should you buy?: Sotya Espirulina 400mg 200 comprimidos from DosFarma, with 71 points out of 100 at €0.017/capsule. The mark is 35 % price against the cheapest in the category, 35 % verifiable quality (certification, purity and additives), 20 % the category's own requirements and 10 % the buyers' rating at the store, and no commercial deal moves the ranking.
Which is the cheapest spirulina?: ZENement Espirulina Ecológica 600 Comprimidos Veganos from DosFarma, at €0.025/capsule (600 capsules pack for 14,99 €). It sits at verification level 1 out of 4. Cheap is not the same as well scored: price is 35 % of the mark and most of the rest is how verifiable its certification is.
How much does a capsule of spirulina cost?: Between €0.025/capsule and €1.149/capsule across the 3 stores compared, with a median of €0.083/capsule. That is the price per capsule, not per pack: two tubs at the same price can cost twice as much as each other depending on what is inside.
What certification should spirulina have?: Of the 30 products compared, 0 reach level 4 (the certification is backed by a third party: either we checked it with the body that issues it, or the product carries in its name a trademark that requires a third party behind it, such as Creapure or IFOS) and 0 reach level 3 (a lab report published by the brand itself). The remaining 30 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.

More specific questions about spirulina4 comparisons — the same table, filtered

La mejor espirulina de DosFarma14 prod.La mejor espirulina de PromoFarma15 prod.La mejor espirulina barata16 prod.DosFarma or PromoFarma for spirulina29 prod.

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The raw data. This ranking is also available as JSON, with the collection date and a link to each product page. It can be cited and reused as long as you say where it comes from and which day the prices are from.