Which is the cheapest iron?

Hierro Suplemento 28mg - 400 Comprimidos En Forma de Bisglicinato + 6 Meses from Amazon, at €0.037/capsule (400 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 iron cost?

Between €0.037/capsule and €1.133/capsule across the 11 stores compared, with a median of €0.211/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 iron have?

Of the 101 products compared, 1 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 100 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.

How much iron should you take a day?

The reference dose this site uses for iron is 14 mg a day, with moderate evidence. Source: Reglamento (UE) 1169/2011 sobre la informacion alimentaria facilitada al consumidor, Anexo XIII: valores de referencia de nutrientes. Hierro, 14 mg. Es un valor de ETIQUETADO, no una dosis con efecto demostrado: mide cuanto cubre una capsula de lo que se considera la ingesta de referencia diaria.. That is the dose of the ingredient in the study cited, not a recommendation for you nor a claim about any product in the table.

Home / Iron

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

The best iron of 2026

Carries oxygen in the blood, and a deficiency sinks performance. Do not take it just in case: get a blood test first.

from €0.037/capsulemedian €0.211up to €1.133/capsule

What iron 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.

Cheapest per capsule

Hierro Suplemento 28mg · 400 comprimidos

€0.037/capsuleNo third-party seal

€0.037 per capsule: the cheapest of those that meet the category's requirements and are not underdosed.

At Amazon · see how its score breaks down

Best value for moneyOur pick

Zumub Hierro 200 comprimidos (2x 100)

€0.022/capsuleNo third-party seal

Score 75 out of 100: the highest mark, with 35 % of the weight on price per capsule.

At Zumub · see how its score breaks down

Best certified

Crown Sport Nutrition Lactoferrin 200 Natraferrin® · 60 cápsulas

€0.833/capsuleVerified

Level 4: the certification is backed by a third party, not by the brand. It is the highest scoring of the verified ones.

At Amazon · see how its score breaks down

Full comparison

101

products compared

from €0.022 to €1.133

per capsule

at verified level 4

Filter and sort

SearchStoreMax €/capsuleSort by

Minimum verification

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Products sorted by score (recommended)
#	Product	Store			Verification
01	Zumub Hierro 200 comprimidos (2x 100)4.5 (96) · 1/3 requirementspricey nowBest value	Zumub+€2.99 delivery	€4.47	€0.022 /capsule	No third-party seal	75
	Zumub Hierro 100 comprimidos4.5 (96) · 1/3 requirements	Zumub+€2.99 delivery	€2.99	€0.030 /capsule	No third-party seal	66
02	Hierro Suplemento 28mg · 400 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€14.99	€0.037 /capsule	No third-party seal	69
03	Hierro y Vitamina C (18mg) Suplemento · 240 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€8.99	€0.037 /capsule	No third-party seal	69
04	Hierro y Vitamina C (80mg) Suplemento · 180 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€6.99	€0.039 /capsule	No third-party seal	68
05	de alta potencia · 360 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€14.95	€0.042 /capsule	No third-party seal	67
06	Hierro · 150 Comprimidos Veganos · 1/1 requirements	Amazonfree delivery from €35	€6.97	€0.046 /capsule	No third-party seal	65
07	vit4ever Hierro + Vitamina C - 365 Comprimidos - Bisglicinato de Hierro · 1/1 requirements	Amazonfree delivery from €35	€17.99	€0.049 /capsule	No third-party seal	64
08	Crown Sport Nutrition Lactoferrin 200 Natraferrin® · 60 cápsulas · 1/1 requirementsVerified level 4	Amazonfree delivery	€49.95	€0.833 /capsule	Verified	63
09	Hierro con Vitamina C (40mg) · 240 tabletas · 1/1 requirements	Amazonfree delivery from €35	€12.74	€0.053 /capsule	No third-party seal	63
10	Hierro con 40mg Vitamina C · 240 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€12.79	€0.053 /capsule	No third-party seal	63
11	BEOK Hierro 365 Cápsulas Blandas · 1/1 requirements	Amazonfree delivery from €35	€19.95	€0.055 /capsule	No third-party seal	63
12	Hierro Suplemento 28 mg · 400 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€24.97	€0.062 /capsule	No third-party seal	61
13	Hierro 30 mg con Ácido Fólico y Vitamina B2-160 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€11.99	€0.075 /capsule	No third-party seal	59
14	Hierro Suplemento Capsulas 14mg · 150 capsulas · 1/1 requirements	Amazonfree delivery from €35	€11.49	€0.077 /capsule	No third-party seal	59
15	HSN Hierro Bisglicinato 20mg, Hierro Quelado Vegano, 120 Cápsulas · 1/1 requirements	Amazonfree delivery from €35	€9.50	€0.079 /capsule	No third-party seal	58
16	Ferrochel Ferrochel™ Hierro con Vitamina C (42mg) · 180 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€14.39	€0.080 /capsule	No third-party seal	58
17	Hierro 14 mg. 240 cápsulas veganas para 8 meses de tratamiento. · 1/1 requirements	Amazonfree delivery from €35	€20.87	€0.087 /capsule	No third-party seal	57
18	Hivital Hierro con Vitaminas C, B12 y Ácido Fólico 240 Cápsulas Veganas · 3/3 requirements	DosFarma+€3.99 delivery	€22.99	€0.096 /capsule	No third-party seal	57
19	Hierro Quelado 20 mg con Vitamina C · 180 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€15.95	€0.089 /capsule	No third-party seal	57
20	Dieti Natura Hierro 200 Cápsulas · 1/1 requirements	Amazonfree delivery from €35	€17.95	€0.090 /capsule	No third-party seal	57
21	Hierro Bisglicinato · 120 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€11.18	€0.093 /capsule	No third-party seal	57
22	Bandini Bandini® Hierro Suplemento 80mg + Vitamina C · 180 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€16.90	€0.094 /capsule	No third-party seal	57
23	Now Foods IRON 18 MG · Hierro · 120 uds · 1/1 requirements	Amazonfree delivery from €35	€12.20	€0.102 /capsule	No third-party seal	56
24	Hierro Ferrochel 30mg - 120 Cápsulas Vegetales · 1/1 requirements	Amazonfree delivery from €35	€12.40	€0.103 /capsule	No third-party seal	56
25	Solgar Hierro Gentle Bisglicinato 20 mg · 180 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€19.43	€0.108 /capsule	No third-party seal	56
26	GSN Hierro · Aporte de Alta Absorción · 60 comprimidos · 1/1 requirements	Amazonfree delivery from €35	€6.51	€0.108 /capsule	No third-party seal	56
27	Solgar Hierro Gentle Bisglicinato · 90 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€9.88	€0.110 /capsule	No third-party seal	55
28	Myvitamins Ácido Fólico y Hierro Comprimidos 90Tabletas4.8 (6) · 1/3 requirements	Myprotein+€5.99 delivery	€4.99	€0.055 /capsule	No third-party seal	55
	Myvitamins Ácido Fólico y Hierro Comprimidos 30Tabletas4.8 (6) · 1/3 requirements	Myprotein+€5.99 delivery	€1.99	€0.066 /capsule	No third-party seal	53
29	Bulk Hierro en Cápsulas (K-Pure ) de, 20 mg, 90 Cápsulas · 1/1 requirements	Amazonfree delivery from €35	€9.99	€0.111 /capsule	No third-party seal	55
30	Hierro Suplemento · 120 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€14.99	€0.125 /capsule	No third-party seal	55
31	Now Foods Hierro complex - 100 tabs4.7 (27) · 2/3 requirements	HSN+€3.99 delivery	€7.79	€0.078 /capsule	No third-party seal	54
32	Ynsadiet Zentrum Hierro 45 Cápsulas5.0 (3) · 3/3 requirements	DosFarma+€3.99 delivery	€7.16	€0.159 /capsule	No third-party seal	54
	Ynsadiet Zentrum Hierro 45 Caps5.0 (4) · 3/3 requirementspricey now	Bulevipfree delivery from €40	€7.36	€0.164 /capsule	No third-party seal	54
33	Vitabay Hierro Cápsulas alta dosis – 120 cápsulas veganas · 1/1 requirements	Amazonfree delivery from €35	€16.49	€0.137 /capsule	No third-party seal	54
34	Hierro Suplemento Vegavero · 240 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€32.90	€0.137 /capsule	No third-party seal	54
35	Hierro con Vitamina C 38mg - 120 Unidades · 1/1 requirements	Amazonfree delivery from €35	€16.99	€0.142 /capsule	No third-party seal	54
36	Solgar Hierro Gentle (Hierro bisglicinato) 180 comprimidos · 3/3 requirements	DosFarma+€3.99 delivery	€29.99	€0.167 /capsule	No third-party seal	54
37	Floradix Hierro + Vitaminas 84 comprimidos5.0 (8) · 3/3 requirementspricey now	DosFarma+€3.99 delivery	€14.99	€0.178 /capsule	No third-party seal	54
38	Hierro 29mg con Vitamina C · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€9.00	€0.150 /capsule	No third-party seal	54
39	Hierro bisglicinato y vitamina C · 120 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€17.95	€0.150 /capsule	No third-party seal	54
40	Raíz Ñame Silvestre 180 Cápsulas veganas · 1/1 requirements	Amazonfree delivery from €35	€28.99	€0.161 /capsule	No third-party seal	53
41	Novadiet ELEMENTALES Novadiet · ELEMENTALES HIERRO MICROENCAPSULADO · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€10.10	€0.168 /capsule	No third-party seal	53
42	Hierro Suplemento Vegavero® · 120 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€20.90	€0.174 /capsule	No third-party seal	53
43	Vitobest Hierro Complex · 3/3 requirements	VitOBestfree delivery from €30	€12.78	€0.213 /capsule	No third-party seal	53
44	Soria Natural Hierro Liberación Sostenida 60 Comprimidos · 3/3 requirements	DosFarma+€3.99 delivery	€13.46	€0.224 /capsule	No third-party seal	53
45	hierro 25mg, 90 cápsulas, fáciles de tragar, ALTA DOSIS, VEGANAS · 2 flavours · 1/1 requirements	Amazonfree delivery from €35	€16.95	€0.188 /capsule	No third-party seal	52
46	Hierro Suplemento Capsulas de Alta Dosis y Vegano · 90 capsulas · 1/1 requirements	Amazonfree delivery from €35	€16.97	€0.189 /capsule	No third-party seal	52
47	Salus Floradix Hierro + Vitaminas - 84 Comprimidos · 3/3 requirements	Holland & Barrett+€4.99 delivery	€19.99	€0.238 /capsule	No third-party seal	52
48	TERRANOVA Hierro Bisglicinato 20 mg 50 caps · 3/3 requirementsgood price	PromoFarma	€12.79	€0.256 /capsule	No third-party seal	52
49	IVB Wellness Lab FerroPlus 90 Cápsulas · 3/3 requirements	DosFarma+€3.99 delivery	€23.90	€0.266 /capsule	No third-party seal	52
50	IronZen 30 mg de Hierro - Bisglicinato Liposomal - 90 Cápsulas Veganas · 1/1 requirements	Amazonfree delivery from €35	€18.97	€0.211 /capsule	No third-party seal	52
51	ECOGENETICS Hierro+ · Suplemento de Hierro Natural · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€12.65	€0.211 /capsule	No third-party seal	52
52	vit.O.Best VITOBEST Suplemento de Hierro · 60 uds · 1/1 requirements	Amazonfree delivery from €35	€12.92	€0.215 /capsule	No third-party seal	52
53	Lactoferrina 250 mg por Cápsula · 90 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€19.99	€0.222 /capsule	No third-party seal	52
54	Solgar Hierro Suave - 90 cápsulas vegetales · 3/3 requirements	Holland & Barrett+€4.99 delivery	€25.99	€0.289 /capsule	No third-party seal	52
55	NaturTierra Hierro 30 Cápsulas Vegetales · 3/3 requirements	DosFarma+€3.99 delivery	€6.99	€0.233 /capsule	No third-party seal	52
56	Pure Encapsulations Hierro-C 60 Cápsulas Vegetales · 3/3 requirements	DosFarma+€3.99 delivery	€18.99	€0.316 /capsule	No third-party seal	52
57	Pure Encapsulations Hierro-C · Hierro y Vitamina C · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€14.44	€0.241 /capsule	No third-party seal	52
58	Lamberts 120 Tabletas · Apto para Veganos · 1/1 requirements	Amazonfree delivery from €35	€29.30	€0.244 /capsule	No third-party seal	52
59	Vitolamin Hierro 40 mg 180 Comprimidos · 1/3 requirementspricey now	DosFarma+€3.99 delivery	€13.99	€0.078 /capsule	No third-party seal	51
60	HSN Hierro Liposomado 30mg LipoCellTech™ · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€15.90	€0.265 /capsule	No third-party seal	51
61	Hierro Suplemento con Vitamina C Natural · 120 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€32.22	€0.269 /capsule	No third-party seal	51
62	Bandini Bandini® Hierro Liposomado 30 mg con Vitamina C · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€18.90	€0.315 /capsule	No third-party seal	51
63	Hierro con Ácido Fólico · 2 flavours · 1/1 requirements	Amazonfree delivery from €35	€19.00	€0.317 /capsule	No third-party seal	51
64	Sura Vitasan Hierro Bisglicinato 30 cápsulas · 3/3 requirements	DosFarma+€3.99 delivery	€13.99	€0.466 /capsule	No third-party seal	51
65	Bandini LACTOFERRINA PURA Bandini® LACTOFERRINA PURA 200mg Immuno · 30 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€9.90	€0.330 /capsule	No third-party seal	51
66	Life Pro IRON 60 CAPS · 1/1 requirements	Tienda Culturista+€6.05 delivery	€19.90	€0.332 /capsule	No third-party seal	51
67	Essentialis Hierro Vitamina B12 Veggie, 30 Cápsulas Veganas · 1/1 requirements	Amazonfree delivery from €35	€10.79	€0.360 /capsule	No third-party seal	51
68	Hierro liposomado · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€21.93	€0.365 /capsule	No third-party seal	50
69	Infisport Fe Hierro Liposomado 60 Capsulas Cápsula · 1/1 requirements	Amazonfree delivery from €35	€27.90	€0.465 /capsule	No third-party seal	50
70	Zeruiah Iron Zeruiah · Iron Complex Complemento Alimenticio · 60 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€33.00	€0.550 /capsule	No third-party seal	50
71	Feminabiane Hierro Complejo de Alta Biodisponibilidad Guanylor (60 Cápsulas) · 1/1 requirements	Amazonfree delivery from €35	€33.04	€0.551 /capsule	No third-party seal	50
72	Leviron Plus Forte – Hierro con Vitamina C · 30 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€16.95	€0.565 /capsule	No third-party seal	50
73	Hierro Endosomal Vitamina C B12 B6 Acido Folico 60 Capsulas be · 1/1 requirements	Amazonfree delivery	€36.00	€0.600 /capsule	No third-party seal	50
74	Fer Mix Hierro Quelado (45 Cápsulas) · 1/1 requirements	Amazonfree delivery from €35	€28.17	€0.626 /capsule	No third-party seal	50
75	ANIME® Suplemento Hierro Liposomado con Vitamina · 30 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€19.70	€0.657 /capsule	No third-party seal	50
76	Hierro. Alta biodisponibilidad. Vitaminas para el · 30 cápsulas · 1/1 requirements	Amazonfree delivery from €35	€21.95	€0.732 /capsule	No third-party seal	49
77	ERBOZETA Ferrodep 30 caps · 1/1 requirements	PromoFarma	€24.69	€0.823 /capsule	No third-party seal	49
78	HIERRO ESENDI Complemento Alimenticio Contra la Deficiencia de · 1/1 requirements	Amazonfree delivery from €35	€34.00	€1.133 /capsule	No third-party seal	49
79	ZENement IronZen Hierro 30 mg 90 Vegcaps · 2/3 requirements	DosFarma+€3.99 delivery	€19.99	€0.222 /capsule	No third-party seal	49
80	Solaray Hierro 25mg 60 Cápsulas Vegetales · 2/3 requirements	DosFarma+€3.99 delivery	€11.99	€0.200 /capsule	No third-party seal	48
81	Infisport Fe Hierro Liposomado 60 caps4.6 (58) · 2/3 requirementspricey now	Bulevipfree delivery from €40	€27.90	€0.465 /capsule	No third-party seal	47
	INFISPORT Fe Hierro Liposomado 60 caps · 1/3 requirements	PromoFarma	€19.59	€0.327 /capsule	No third-party seal	44
82	Solgar Hierro Gentle 20mg 90 Cápsulas Vegetales5.0 (1) · 1/3 requirements	DosFarma+€3.99 delivery	€18.99	€0.211 /capsule	No third-party seal	45
83	NOVADIET Hierro Microencapsulado 60caps · 1/3 requirements	PromoFarma	€14.25	€0.237 /capsule	No third-party seal	44
84	Equisalud Holomega Ferro Plus 180caps · 1/3 requirements	PromoFarma	€44.39	€0.247 /capsule	No third-party seal	44
	Equisalud Holomega Ferro Plus 50 caps · 1/3 requirements	PromoFarma	€13.39	€0.268 /capsule	No third-party seal	44
85	Integralia Hierro Plus 30 Cápsulas · 1/3 requirements	DosFarma+€3.99 delivery	€7.99	€0.266 /capsule	No third-party seal	44
86	Life Pro IRON 60 CÁPSULAS HIERRO LIPOSOMADO5.0 (1) · 1/3 requirements	Life Pro+€6.05 delivery	€18.09	€0.301 /capsule	No third-party seal	44
87	Neo Hierro 50 caps · 1/3 requirements	PromoFarma	€18.92	€0.378 /capsule	No third-party seal	43
88	Essentialis Hierro Vitamina B12 Veggie 30 Cápsulas · 1/3 requirements	DosFarma+€3.99 delivery	€11.99	€0.400 /capsule	No third-party seal	43
89	Granero Integral Ferrogan 690 Mg 45 caps · 1/3 requirements	PromoFarma	€19.04	€0.423 /capsule	No third-party seal	43
90	Ferromax Microencapsulated Iron 30caps5.0 (8) · 1/3 requirementspricey now	PromoFarma	€14.58	€0.486 /capsule	No third-party seal	43
91	mundonatural Enervital Hierro 30caps · 1/3 requirements	PromoFarma	€16.67	€0.556 /capsule	No third-party seal	43
92	fisiogen Ferro Forte 30 caps4.8 (185) · 1/3 requirements	PromoFarma	€22.80	€0.760 /capsule	No third-party seal	43
93	Etixx Iron 125 Aa 30 caps · 1/3 requirements	PromoFarma	€20.39	€0.680 /capsule	No third-party seal	42
94	Vecos Nucoceutical Ferrovecos 30caps4.5 (2) · 1/3 requirements	PromoFarma	€23.40	€0.780 /capsule	No third-party seal	42
95	Zambon Fisiogen Ferro Forte 30 Caps · 1/3 requirements	Bulevipfree delivery from €40	€24.39	€0.813 /capsule	No third-party seal	42
96	Roan-farma Ferro Control Fórmula Completa 30 Cápsulas · 1/3 requirements	PromoFarma	€29.93	€0.998 /capsule	No third-party seal	42

101 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 iron

Answered with the data on this page

Which iron should you buy?: Zumub Hierro 200 comprimidos (2x 100) from Zumub, with 75 points out of 100 at €0.022/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 iron?: Hierro Suplemento 28mg - 400 Comprimidos En Forma de Bisglicinato + 6 Meses from Amazon, at €0.037/capsule (400 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 iron cost?: Between €0.037/capsule and €1.133/capsule across the 11 stores compared, with a median of €0.211/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 iron have?: Of the 101 products compared, 1 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 100 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.
How much iron should you take a day?: The reference dose this site uses for iron is 14 mg a day, with moderate evidence. Source: Reglamento (UE) 1169/2011 sobre la informacion alimentaria facilitada al consumidor, Anexo XIII: valores de referencia de nutrientes. Hierro, 14 mg. Es un valor de ETIQUETADO, no una dosis con efecto demostrado: mide cuanto cubre una capsula de lo que se considera la ingesta de referencia diaria.. That is the dose of the ingredient in the study cited, not a recommendation for you nor a claim about any product in the table.

More specific questions about iron7 comparisons — the same table, filtered

El mejor hierro de Amazon59 prod.El mejor hierro de DosFarma15 prod.El mejor hierro de PromoFarma14 prod.El mejor hierro barato51 prod.Amazon or DosFarma for iron74 prod.Amazon or PromoFarma for iron73 prod.DosFarma or PromoFarma for iron29 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.