Selection within spirulina · data from
The best spirulina from PromoFarma: 15 products by price per capsule
The short answer. Of the 15 products that pass this filter, the highest scoring is Go Phyto Spiruline Bio 200 caps from PromoFarma: €0.035/capsule and verification level 1 out of 4. The cheapest per capsule is PHARMASCIENCE Spirulina Vitamina C Tonus 200 caps from PromoFarma, at €0.057/capsule. The selection runs from €0.057/capsule to €1.149/capsule, with a median of €0.148/capsule.
The 15 spirulina products sold by PromoFarma, scored with the same score as the rest of the site. Its median is €0.148/capsule, 78 % above the median of the 3 stores compared (€0.083/capsule).
† 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.
The three that stand out
PHARMASCIENCE Spirulina Vitamina C Tonus 200 caps
€0.057/capsuleNo third-party seal
€0.057 per capsule: the cheapest of those that meet the category's requirements and are not underdosed.
At PromoFarma · see how its score breaks down
Go Phyto Spiruline Bio 200 caps
€0.035/capsuleNo third-party seal
Score 53 out of 100: the highest mark, with 35 % of the weight on price per capsule.
At PromoFarma · see how its score breaks down
The full selection
15
products compared
from €0.057 to €1.149
per capsule
0
at verified level 4
Filter and sort
| # | Product | Store | |||
|---|---|---|---|---|---|
| 01 | Go Phyto Spiruline Bio 200 caps · 0/1 requirements | PromoFarma | €6.98 | €0.035 /capsule | 53 |
| 02 | PromoFarma | €11.46 | €0.057 /capsule | 49 | |
| 03 | SOLNATURAL Espirulina 200tabs · 0/1 requirements | PromoFarma | €9.65 | €0.048 /capsule | 48 |
| 04 | PromoFarma | €12.92 | €0.065 /capsule | 47 | |
| 05 | INTEGRALIA Spirulina Ecológica 500 mg 100 caps · 1/1 requirements | PromoFarma | €13.89 | €0.139 /capsule | 47 |
| 06 | Mensan Espirulina Bio 500 mg 180 caps · 0/1 requirements | PromoFarma | €13.49 | €0.075 /capsule | 44 |
| 07 | PromoFarma | €29.52 | €0.148 /capsule | 42 | |
| 08 | PromoFarma | €10.67 | €0.178 /capsule | 42 | |
| 09 | PromoFarma | €9.49 | €0.158 /capsule | 42 | |
| 10 | PromoFarma | €11.24 | €0.225 /capsule | 41 | |
| 11 | Energy Feelings Energy Spirulina 120 caps · 0/1 requirements | PromoFarma | €16.79 | €0.140 /capsule | 40 |
| 12 | PromoFarma | €14.79 | €0.185 /capsule | 39 | |
| 13 | Alfa Herbal Espirulina Herbal 90 caps · 0/1 requirements | PromoFarma | €17.45 | €0.194 /capsule | 39 |
| 14 | MARCUS ROHRER Bio Espirulina 180 caps · 0/1 requirements | PromoFarma | €36.39 | €0.202 /capsule | 39 |
| 15 | Natural Nutrition Phycospir Espirulina Bio 30 caps · 0/1 requirements | PromoFarma | €34.47 | €1.149 /capsule | 36 |
No product makes that cut
Out of the 15 in this table, none meets every filter that is currently set at the same time.
15 products in this table
Why one is cheaper than the other
Factor by factor, with both stores’ data
PromoFarma costs 147 % more per capsule than All other stores (€0.148/capsule against €0.060/capsule, medians of both catalogues). That difference does not come out of nowhere. These are the data that explain it, with each store’s figure alongside: capsules per pack (median).
| Factor | PromoFarma | All other stores |
|---|---|---|
| Capsules per pack (median)All other stores sells bigger packs, and a big pack spreads the same tub, the same label and the same shipping over more capsules. Part of the price gap per capsule is this and not a discount: comparing one store’s small pack with the other’s large one inflates the gap. | 120 caps. | 180 caps. |
| Median rating at the storeBased on 2 reviews at PromoFarma and 17 at All other stores. These are the store’s own ratings, which is judge and party: they help spot a product that arrives damaged or tastes awful, not decide which formula is better. | 5/5 | 5/5 |
None of these factors is an accusation. They are medians of what each store publishes on its pages on the day prices were collected: where a page does not declare a figure, that store does not count in that row instead of counting as a zero. A specific product can contradict its store’s median, and that is what the full table is for. How all of this is calculated.
This is a filter, not another ranking. The score that sorts this table is exactly the same as in the full spirulina comparison: the only thing removed here is the products that do not meet the criterion above. How it is calculated.
Questions about this spirulina selection
Answered with the data on this page
- Which is the best spirulina in this selection?
- Go Phyto Spiruline Bio 200 caps from PromoFarma, with 53 points out of 100 at €0.035/capsule. The 15 spirulina products sold by PromoFarma, scored with the same score as the rest of the site. Its median is €0.148/capsule, 78 % above the median of the 3 stores compared (€0.083/capsule).
- Which is the cheapest per capsule?
- PHARMASCIENCE Spirulina Vitamina C Tonus 200 caps from PromoFarma, at €0.057/capsule (200 capsules pack for €11.46). It is at verification level 1 out of 4: price is only 35 % of the mark.
- How was this selection made?
- The 15 spirulina products sold by PromoFarma, scored with the same score as the rest of the site. Its median is €0.148/capsule, 78 % above the median of the 3 stores compared (€0.083/capsule). The order within the table is the usual score: 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. Affiliate links do not enter the calculation. Prices collected on October 15, 2026.
Other ways to look at spirulina
Same dataset, another question