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Amazon or PromoFarma for zinc: which is better value per capsule
The short answer. For zinc, Amazon lists 35 products and PromoFarma another 13. By price per capsule, Amazon’s median is €0.166/capsule and PromoFarma’s is €0.248/capsule. The highest scoring across both catalogues is vit4ever Zinc 25 mg - 400 Comprimidos - Materia Prima de Marca from Amazon, with 69 out of 100 at €0.037/capsule. Neither has products at verification level 4: for zinc the ceiling today is a lab report published by the brand itself, and that is not a certification.
Both stores measured on the same criterion: price per capsule and certification verification level. There is no overall winner because there isn’t one: one can win on price and the other on certification, and here you see both separately.
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Both stores at a glance
35 zinc products
€0.166/capsulemedian
From €0.037/capsule to €0.723/capsule. 0 at verification level 4 and 0 at level 3.
Its best score: vit4ever Zinc 25 mg - 400 Comprimidos - Materia Prima de Marca, 69/100 at €0.037/capsule.
13 zinc products
€0.248/capsulemedian
From €0.160/capsule to €0.377/capsule. 0 at verification level 4 and 0 at level 3.
Its best score: Naturbite Zinc Citrato 30 mg 60 caps, 54/100 at €0.160/capsule.
Amazon against PromoFarma, figure by figure
The same numbers for both
| Figure | Amazon | PromoFarma |
|---|---|---|
| Products compared | 35 | 13 |
| Median per capsule | €0.166/capsule | €0.248/capsule |
| Cheapest per capsule | €0.037/capsule | €0.160/capsule |
| Dearest per capsule | €0.723/capsule | €0.377/capsule |
| Best score | 69 | 54 |
| Level 4 (certification backed by a third party) | 0 of 35 | 0 of 13 |
| Level 3 (the brand’s own lab report) | 0 of 35 | 0 of 13 |
The median is not the price you will pay. It is the midpoint of that store’s catalogue in this category, and it tells you whether a store is dear or cheap overall. For buying, the specific row in the table below is what counts.
Why one is cheaper than the other
Factor by factor, with both stores’ data
PromoFarma costs 49 % more per capsule than Amazon (€0.248/capsule against €0.166/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), chemical form of the active ingredient.
| Factor | Amazon | PromoFarma |
|---|---|---|
| Capsules per pack (median)Amazon 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. | 100 caps. | 50 caps. |
| Chemical form of the active ingredientAmazon: Citrate (4), Gluconate (2). PromoFarma: Citrate (2). 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 4 · Gluconate 2 | Citrate 2 |
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.
All 48 products from both stores
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| # | Product | Store | |||
|---|---|---|---|---|---|
| 01 | vit4ever Zinc 25 mg - 400 Comprimidos - Materia Prima de Marca · 1/1 requirements | Amazonfree delivery from €35 | €14.99 | €0.037 /capsule | 69 |
| 02 | Soria Natural Zinc Comprimidos 25mg · 200 comprimidos · 1/1 requirements | Amazonfree delivery from €35 | €11.60 | €0.058 /capsule | 61 |
| 03 | ZINC 25 MG de HSN · 120 tabletas · 1/1 requirements | Amazonfree delivery from €35 | €7.40 | €0.062 /capsule | 61 |
| 04 | Vitabay Zinc 50 mg alta dosificación – 250 comprimidos veganos partibles · 1/1 requirements | Amazonfree delivery from €35 | €17.97 | €0.072 /capsule | 59 |
| 05 | ZM6 – Zinc y Magnesio Alta Dosis – 360 Cápsulas Veganas · 1/1 requirements | Amazonfree delivery from €35 | €26.99 | €0.075 /capsule | 58 |
ZM6 – Zinc y Magnesio Alta Dosis – 180 Cápsulas Veganas · 1/1 requirements | Amazonfree delivery from €35 | €15.99 | €0.089 /capsule | 57 | |
| 06 | Bandini Bandini® Zinc Magnesio ULTRA + Vitamina B6, 120 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €9.40 | €0.078 /capsule | 58 |
| 07 | Solgar Calcio · Magnesio y Zinc · 250 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €20.03 | €0.080 /capsule | 58 |
| 08 | Solgar Calcio y Magnesio con Zinc · 100 comprimidos · 1/1 requirements | Amazonfree delivery from €35 | €9.39 | €0.094 /capsule | 56 |
| 09 | Now Foods L-OptiZinc 30mg · 100 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €11.78 | €0.118 /capsule | 55 |
| 10 | Beverly Zinc Puro Gluconato de Zinc 90 Cápsulas Vegetales 30 mg · 1/1 requirements | Amazonfree delivery from €35 | €11.95 | €0.133 /capsule | 54 |
| 11 | Naturbite Zinc Citrato 30 mg 60 caps · 3/3 requirements | PromoFarma | €9.58 | €0.160 /capsule | 54 |
| 12 | Lamberts Zinc 25 mg como Citrato · 120 tabletas · 1/1 requirements | Amazonfree delivery from €35 | €16.30 | €0.136 /capsule | 54 |
| 13 | Citrato de zinc 50 mg · 120 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €16.39 | €0.137 /capsule | 54 |
| 14 | Sanuvit Sanuvit® · Zinc 30 mg por cápsula · 180 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €24.90 | €0.138 /capsule | 54 |
| 15 | Citrato de Zinc 30mg · 120 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €17.13 | €0.143 /capsule | 54 |
| 16 | Ynsadiet Zinc + Silicio Orgánico - 60 Cápsulas, 60 unidad, 1 · 1/1 requirements | Amazonfree delivery from €35 | €9.20 | €0.153 /capsule | 53 |
| 17 | Biotina 10000 mcg Complex · 120 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €19.63 | €0.164 /capsule | 53 |
| 18 | Zinc Bisglicinato 15mg + Vitamina B6 · 60 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €9.97 | €0.166 /capsule | 53 |
| 19 | Citrato de Zinc 30mg · 60 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €9.94 | €0.166 /capsule | 53 |
| 20 | HSN GI Biotics 25B UFC · Probióticos Intestinales · 120 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €19.90 | €0.166 /capsule | 53 |
| 21 | EPAPLUS Zinc Bisglicinato 100 cápsulas 15 mg Inmunidad Alta absorción · 1/1 requirements | Amazonfree delivery from €35 | €17.90 | €0.179 /capsule | 53 |
| 22 | VITOBEST Zinc · Ayuda a Nuestro organismo a metabolizar los · 50 uds · 1/1 requirements | Amazonfree delivery from €35 | €9.18 | €0.184 /capsule | 52 |
| 23 | Zinc Bisglicinato 15mg + Selenio · 60 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €11.39 | €0.190 /capsule | 52 |
| 24 | Probiótico 20 cepas 40 mil millones de UFC con Inulina y Zinc. · 1/1 requirements | Amazonfree delivery from €35 | €22.80 | €0.190 /capsule | 52 |
| 25 | Zink 15mg · Suplemento de Picolinato de Zinc vegano · 60 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €11.95 | €0.199 /capsule | 52 |
| 26 | Pure Encapsulations Zinc Citrato 60 caps · 3/3 requirements | PromoFarma | €16.27 | €0.271 /capsule | 52 |
| 27 | Naturmil Zinc 20 mg - 60 Comprimidos | Picolinato | 60 días · 1/1 requirements | Amazonfree delivery from €35 | €12.25 | €0.204 /capsule | 52 |
| 28 | Zinc 25 Liposomado 60 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €13.90 | €0.232 /capsule | 52 |
| 29 | FEPA ZINC 15 mg 60 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €13.95 | €0.232 /capsule | 52 |
| 30 | NEO Zinc · 50 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €11.76 | €0.235 /capsule | 51 |
| 31 | PromoFarma | €12.41 | €0.248 /capsule | 51 | |
| 32 | Jarrow Formulas Jarrow Formulas · 100 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €25.94 | €0.259 /capsule | 51 |
| 33 | VITAMINAS PARA EL CABELLO Biotina + Zinc + · 90 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €24.90 | €0.277 /capsule | 51 |
| 34 | Holomega Zinc Equisalud 50 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €15.48 | €0.310 /capsule | 51 |
| 35 | Colágeno Ácido Hialurónico · 60 cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €18.90 | €0.315 /capsule | 51 |
| 36 | Sura Vitasan Zinc PVH Quelado 100 caps · 2/3 requirements | PromoFarma | €15.29 | €0.153 /capsule | 50 |
| 37 | VitoBest Zinc Bisglycinate 50caps · 2/3 requirements | PromoFarma | €8.29 | €0.166 /capsule | 50 |
| 38 | Gynea Gestagyn Preconcepción 30 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €15.95 | €0.532 /capsule | 50 |
| 39 | Naturmil Fosfatidilserina 200mg con Vitamina B6 y Zinc - 30 Cápsulas · 1/1 requirements | Amazonfree delivery from €35 | €21.69 | €0.723 /capsule | 49 |
| 40 | PromoFarma | €13.45 | €0.112 /capsule | 48 | |
| 41 | PromoFarma | €9.49 | €0.190 /capsule | 45 | |
| 42 | Neo Zinc 50 caps · 1/3 requirements | PromoFarma | €11.89 | €0.238 /capsule | 44 |
| 43 | Neo Zinc-niquel-cobalto 50cáps · 1/3 requirements | PromoFarma | €16.29 | €0.326 /capsule | 44 |
| 44 | Neo Zinc-cobre 50 caps · 1/3 requirements | PromoFarma | €16.49 | €0.330 /capsule | 44 |
| 45 | Waydiet Natural Products Zinc-Cobre Oligogranulos 50 caps · 1/3 requirements | PromoFarma | €17.19 | €0.344 /capsule | 43 |
| 46 | Sura Vitasan Zinc L-Carnosina 60 caps · 1/3 requirements | PromoFarma | €22.59 | €0.377 /capsule | 43 |
| 47 | PromoFarma | €21.89 | €0.365 /capsule | 43 |
No product makes that cut
Out of the 48 in this table, none meets every filter that is currently set at the same time.
48 products in this table
Questions about Amazon and PromoFarma for zinc
Answered with the data on this page
- Amazon or PromoFarma for zinc?
- On price per capsule, Amazon: its median is €0.166/capsule against €0.248/capsule at PromoFarma, which is 49 % dearer. The median does not decide on its own: most of the rest of the mark is certification, and there Amazon has 0 products at level 4 and PromoFarma has 0.
- Which is the cheapest zinc across the two stores?
- vit4ever Zinc 25 mg - 400 Comprimidos - Materia Prima de Marca from Amazon, at €0.037/capsule (400 capsules pack for €14.99), at verification level 1 out of 4.
- Why don’t Amazon and PromoFarma cost the same?
- PromoFarma costs 49 % more per capsule than Amazon (€0.248/capsule against €0.166/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), chemical form of the active ingredient. Amazon 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. Amazon: Citrate (4), Gluconate (2). PromoFarma: Citrate (2). 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.
- Which of the two stores scores better?
- vit4ever Zinc 25 mg - 400 Comprimidos - Materia Prima de Marca from Amazon, with 69 out of 100. 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, and it is computed without looking at affiliate links. Prices from October 15, 2026.
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