Selection within zinc · data from
The best zinc from PromoFarma: 13 products by price per capsule
The short answer. Of the 13 products that pass this filter, the highest scoring is Naturbite Zinc Citrato 30 mg 60 caps from PromoFarma: €0.160/capsule and verification level 1 out of 4. The selection runs from €0.160/capsule to €0.377/capsule, with a median of €0.248/capsule.
The 13 zinc products sold by PromoFarma, scored with the same score as the rest of the site. Its median is €0.248/capsule, 55 % above the median of the 12 stores compared (€0.160/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
Naturbite Zinc Citrato 30 mg 60 caps
€0.160/capsuleNo third-party seal
€0.160 per capsule: the cheapest of those that meet the category's requirements and are not underdosed.
Score 54 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
13
products compared
from €0.160 to €0.377
per capsule
0
at verified level 4
Filter and sort
| # | Product | Store | |||
|---|---|---|---|---|---|
| 01 | Naturbite Zinc Citrato 30 mg 60 caps · 3/3 requirements | PromoFarma | €9.58 | €0.160 /capsule | 54 |
| 02 | Pure Encapsulations Zinc Citrato 60 caps · 3/3 requirements | PromoFarma | €16.27 | €0.271 /capsule | 52 |
| 03 | PromoFarma | €12.41 | €0.248 /capsule | 51 | |
| 04 | Sura Vitasan Zinc PVH Quelado 100 caps · 2/3 requirements | PromoFarma | €15.29 | €0.153 /capsule | 50 |
| 05 | VitoBest Zinc Bisglycinate 50caps · 2/3 requirements | PromoFarma | €8.29 | €0.166 /capsule | 50 |
| 06 | PromoFarma | €13.45 | €0.112 /capsule | 48 | |
| 07 | PromoFarma | €9.49 | €0.190 /capsule | 45 | |
| 08 | Neo Zinc 50 caps · 1/3 requirements | PromoFarma | €11.89 | €0.238 /capsule | 44 |
| 09 | Neo Zinc-niquel-cobalto 50cáps · 1/3 requirements | PromoFarma | €16.29 | €0.326 /capsule | 44 |
| 10 | Neo Zinc-cobre 50 caps · 1/3 requirements | PromoFarma | €16.49 | €0.330 /capsule | 44 |
| 11 | Waydiet Natural Products Zinc-Cobre Oligogranulos 50 caps · 1/3 requirements | PromoFarma | €17.19 | €0.344 /capsule | 43 |
| 12 | Sura Vitasan Zinc L-Carnosina 60 caps · 1/3 requirements | PromoFarma | €22.59 | €0.377 /capsule | 43 |
| 13 | PromoFarma | €21.89 | €0.365 /capsule | 43 |
No product makes that cut
Out of the 13 in this table, none meets every filter that is currently set at the same time.
13 products in this table
What each tub contains
Median dose per serving
Price per kilo does not tell you how much active ingredient is inside the kilo. This table does: for each ingredient, the median dose per serving at each store and how many products reach the dose backed by studies (the same reference this site scores with).
| Ingredient | PromoFarma | All other stores |
|---|---|---|
| ZincEvidence-backed dose: from 10 mg per serving | not included | 25 mg12 of 68 contain it · 12 reach the dose |
The dose is per serving, not per tub. A big tub with a short dose forces you to take two scoops to get the same, and then it lasts half as long: that is why the price per dose in the next section does not match the price per kilo.
Why one is cheaper than the other
Factor by factor, with both stores’ data
PromoFarma costs 65 % more per capsule than All other stores (€0.248/capsule against €0.150/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), products with declared additives, chemical form of the active ingredient.
| 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. | 50 caps. | 100 caps. |
| Products with declared additivesWhat the pages of both declare: anti-caking agents. An additive is not fraud, but it takes up grams that are not active ingredient and is cheaper than the active ingredient: where more additive is declared, the price per capsule drops without the product being better. | 0 % | 24 % |
| Chemical form of the active ingredientPromoFarma: Citrate (2). All other stores: Citrate (6), Gluconate (4). The form changes the manufacturing cost and the evidence behind it, so two tubs of the same ingredient at different prices may not be the same product. | Citrate 2 | Citrate 6 · Gluconate 4 |
| Median rating at the storeBased on 6 reviews at PromoFarma and 792 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. | 4.5/5 | 4.8/5 |
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 zinc comparison: the only thing removed here is the products that do not meet the criterion above. How it is calculated.
Questions about this zinc selection
Answered with the data on this page
- Which is the best zinc in this selection?
- Naturbite Zinc Citrato 30 mg 60 caps from PromoFarma, with 54 points out of 100 at €0.160/capsule. The 13 zinc products sold by PromoFarma, scored with the same score as the rest of the site. Its median is €0.248/capsule, 55 % above the median of the 12 stores compared (€0.160/capsule).
- Which is the cheapest per capsule?
- Naturbite Zinc Citrato 30 mg 60 caps from PromoFarma, at €0.160/capsule (60 capsules pack for €9.58). It is at verification level 1 out of 4: price is only 35 % of the mark.
- How was this selection made?
- The 13 zinc products sold by PromoFarma, scored with the same score as the rest of the site. Its median is €0.248/capsule, 55 % above the median of the 12 stores compared (€0.160/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 zinc
Same dataset, another question