Which is the cheapest vitamin B12?

Vitamina B12 500 µg con Ácido Fólico – 400 Comprimidos from Amazon, at €0.025/capsule (400 capsules pack for 9,95 €). 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 vitamin B12 cost?

Between €0.025/capsule and €1.166/capsule across the 9 stores compared, with a median of €0.143/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 vitamin B12 have?

Of the 106 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 106 stop at a certification claimed on the product page, or none at all. Only level 4 is checked against whoever issues the certification.

Home / Vitamin B12

Which vitamin B12 should you buy · data from October 15, 2026

The best vitamin B12 of 2026

The one vitamin a 100 % plant diet does not reliably provide. Deficiency takes years to show and can leave neurological damage: on a vegan diet it is part of the diet.

from €0.025/capsulemedian €0.143up to €1.166/capsule

What vitamin B12 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 and best value for money

Vitamina B12 500 µg con Ácido Fólico – 400 Comprimidos

€0.025/capsuleNo third-party seal

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

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

At Amazon · see how its score breaks down

Full comparison

106

products compared

from €0.025 to €1.166

per capsule

at verified level 4

Filter and sort

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Products sorted by score (recommended)
#	Product	Store
01	Vitamina B12 500 µg con Ácido Fólico – 400 ComprimidosBest value	Amazonfree delivery from €35	€9.95	€0.025 /capsule	75
02	Vitamina B12 400 Tabletas de Metilcobalamina Bioacitva · 2 flavours	Amazonfree delivery from €35	€9.99	€0.025 /capsule	74
03	Vitaminalia Vitamina B12 (metilcobalamina) 2000mcg 365 tabletas · 2 flavours4.8 (43) · 2/2 requirements	HSN+€3.99 delivery	€11.10	€0.030 /capsule	74
04	Vitamina B12 1000 mcg · 500 comprimidos	Amazonfree delivery from €35	€12.95	€0.026 /capsule	73
05	Vitamina B12 500 mcg · 365 comprimidos	Amazonfree delivery from €35	€9.99	€0.027 /capsule	71
06	Vitamina B12-1000 µg · 365 cápsulas	Amazonfree delivery from €35	€11.18	€0.031 /capsule	68
07	Bandini Bandini® Vitamina B12 1.000mcg 450 Comprimidos	Amazonfree delivery from €35	€14.99	€0.033 /capsule	66
08	Vitastrong Vitamina B12 1000mcg Vegana, 475 Comprimidos, 1 al Día 15+ Meses	Amazonfree delivery from €35	€15.98	€0.034 /capsule	66
09	HSN Essential Series Vitamina B12 (metilcobalamina) 500mcg 120 tabletas · 2 flavours · 2/2 requirements	HSN+€3.99 delivery	€5.13	€0.043 /capsule	66
10	Vitamina B12 Vegana 1000 mcg 450 Comprimidos	Amazonfree delivery from €35	€15.19	€0.034 /capsule	65
11	Vitaminalia Vitamina B12 Metilcobalamina 2000mcg · 365 tabletas	Amazonfree delivery from €35	€12.99	€0.036 /capsule	64
12	Bandini Bandini® Vitamina B12 Vegana 365 Comprimidos	Amazonfree delivery from €35	€13.90	€0.038 /capsule	63
13	Zumub Vitamina B12 100 comprimidos · 1/2 requirements	Zumub+€2.99 delivery	€3.84	€0.038 /capsule	62
14	Cerveza con Vitamina B12 · 250 comprimidos	Amazonfree delivery from €35	€9.87	€0.039 /capsule	62
15	Vitamina B12 1000mcg · 450 comprimidos	Amazonfree delivery from €35	€17.97	€0.040 /capsule	61
16	Bandini Bandini® Vitamina B12 y Ácido Fólico · 400 comprimidos	Amazonfree delivery from €35	€16.90	€0.042 /capsule	60
17	Vitamina B12 Masticable 1000mcg · 400 comprimidos	Amazonfree delivery from €35	€17.99	€0.045 /capsule	59
18	Vitamina B12-1000 mcg · 365 tabletas	Amazonfree delivery from €35	€16.99	€0.047 /capsule	58
19	Now Foods Vitamina B12 (metilcobalamina) 1000mcg - 100 tabs4.8 (24) · 2/2 requirements	HSN+€3.99 delivery	€6.63	€0.066 /capsule	58
20	Nutravita Vitamina B12 1000mcg 365 Tabletas Veganas	Amazonfree delivery from €35	€17.99	€0.049 /capsule	57
21	Vitamina B12 1000 mcg y Ácido Fólico 400 mcg · 400 comprimidos	Amazonfree delivery from €35	€21.19	€0.053 /capsule	56
22	Hivital Foods Vitamina B12 Metilcobalamina 1000 mcg 200 comprimidos (Más de 65.0 (1) · 2/2 requirements	PromoFarma	€17.29	€0.086 /capsule	55
23	Nutri 365 Cápsulas Vitamina B12 con Ácido Fólico	Amazonfree delivery from €35	€20.98	€0.057 /capsule	55
24	Now Foods Vitamina B12 (cianocobalamina) 1000mcg 100 tabletas4.7 (19) · 1/2 requirements	HSN+€3.99 delivery	€5.73	€0.057 /capsule	54
25	Vitamina B12 1000mcg + 400mcg Ácido fólico · 200 tabletas	Amazonfree delivery from €35	€11.89	€0.059 /capsule	54
26	Bicentury Vitamina B12-1000 mcg de Vitamina B12 de · 240 comprimidos	Amazonfree delivery from €35	€14.69	€0.061 /capsule	54
27	Hivital Vitamina B12 Metilcobalamina 1000mcg 200 Comprimidos5.0 (1) · 2/2 requirements	DosFarma+€3.99 delivery	€19.99	€0.100 /capsule	54
28	400µg Con Vitamina B12 PiùLife, 160 Comprimidos, 1 Al Día	Amazonfree delivery from €35	€9.99	€0.062 /capsule	54
29	Vitamina B12 y Ácido Fólico Quatrefolic® - 180 comprimidos	Amazonfree delivery from €35	€11.99	€0.067 /capsule	53
30	Vitalabs Vitamina B12 100 comprimidos · 0/2 requirements	Zumub+€2.99 delivery	€4.75	€0.048 /capsule	53
31	HSN Vitamina B12 Metilcobalamina 1000mcg - 120 Cápsulas Vegetales	Amazonfree delivery from €35	€8.40	€0.070 /capsule	52
32	HSN Vitamina B12 Cianocobalamina 1000 MCG · 120 cápsulas	Amazonfree delivery from €35	€8.90	€0.074 /capsule	51
33	vitamina B12 · Reduce Cansancio · 160 comprimidos	Amazonfree delivery from €35	€11.90	€0.074 /capsule	51
34	HSN Vitamina B12 Metilcobalamina 500mcg - 120 Tabletas	Amazonfree delivery from €35	€8.99	€0.075 /capsule	51
35	SANON Vitamina B12 365 cápsulas	Amazonfree delivery from €35	€28.99	€0.079 /capsule	51
36	Vitobest Methylcobalamin Vitamin B12 · 2/2 requirements	VitOBestfree delivery from €30	€10.80	€0.180 /capsule	50
37	NOVADIET Vitamina B12 100 Mcg 120 caps · 1/2 requirements	PromoFarma	€11.39	€0.095 /capsule	49
38	Solgar Vitamina B12 100 µg · 100 comprimidos	Amazonfree delivery from €35	€9.10	€0.091 /capsule	49
39	Now Foods Vitamina B12 (metilcobalamina) 5000mcg 120 tabletas4.8 (16) · 2/2 requirements	HSN+€3.99 delivery	€25.33	€0.211 /capsule	49
	Now Foods Vitamina B12 (metilcobalamina) 5000mcg 60 tabletas4.8 (16) · 2/2 requirements	HSN+€3.99 delivery	€13.86	€0.231 /capsule	49
40	Vitamina B12 1000 mcg con Ácido Fólico 375 mg · 180 comprimidos	Amazonfree delivery from €35	€16.95	€0.094 /capsule	49
41	vitaminas B NATURE LOVE® · 180 cápsulas	Amazonfree delivery from €35	€16.99	€0.094 /capsule	49
42	Vitamina B12 Metilcobalamina 1000 mcg. 200 comprimidos VEGANOS	Amazonfree delivery from €35	€18.87	€0.094 /capsule	49
43	Sanon Vitamina B12 200 µg 120 Cápsulas · 1/2 requirements	DosFarma+€3.99 delivery	€11.99	€0.100 /capsule	49
44	HSN Vitamina B12 Adenosilcobalamina 1000mcg - 120 Cápsulas Vegetales	Amazonfree delivery from €35	€11.90	€0.099 /capsule	48
45	Vitamina B12 1000µg Alta Dosis · 60 cápsulas	Amazonfree delivery from €35	€5.99	€0.100 /capsule	48
46	Igennus Super Vitamina B12 Sublingual 1000mcg, 180 Comprimidos	Amazonfree delivery from €35	€17.99	€0.100 /capsule	48
47	Solgar Vitamina B12 1000 mcg Cianocobalamina · 250 comprimidos	Amazonfree delivery from €35	€25.99	€0.104 /capsule	48
48	Solgar Vitamina B12 100 mcg Cianocobalamina 100 comprimidos · 1/2 requirements	DosFarma+€3.99 delivery	€10.99	€0.110 /capsule	48
49	Lamberts Vitamina B12 1000mcg Metilcobalamina 60 Tabletas · 2/2 requirements	DosFarma+€3.99 delivery	€19.00	€0.317 /capsule	48
50	Bandini® Bisglicinato de Magnesio + Vitamina · 180 cápsulas	Amazonfree delivery from €35	€19.90	€0.111 /capsule	48
51	Solgar Vitamina B12 1000mcg (Metilcobalamina) 30 comprimidos · 2/2 requirementslowest seen	DosFarma+€3.99 delivery	€12.99	€0.433 /capsule	47
52	Soria Natural Vitamina B12 200 Comprimidos5.0 (10) · 0/2 requirements	DosFarma+€3.99 delivery	€15.26	€0.076 /capsule	47
53	Vitamina B12 · 120 cápsulas	Amazonfree delivery from €35	€15.60	€0.130 /capsule	46
54	Vitamina B12 1000 mcg · 100 cápsulas	Amazonfree delivery from €35	€12.99	€0.130 /capsule	46
55	Life Extension Bioactive Life Extension · 90 cápsulas	Amazonfree delivery from €35	€12.11	€0.135 /capsule	46
56	Solgar Vitamina B12 · Aporte de Energía I100 Comprimidos	Amazonfree delivery from €35	€13.89	€0.139 /capsule	46
57	400 mcg con Vitamina D3 · 120 cápsulas	Amazonfree delivery from €35	€17.10	€0.143 /capsule	46
58	Vitamina B12 1000 µg Cianocobalamina · 60 cápsulas	Amazonfree delivery from €35	€8.90	€0.148 /capsule	46
59	Soria Natural Vitamina B12 1000μg · 60 comprimidos	Amazonfree delivery from €35	€8.95	€0.149 /capsule	45
60	HSN Vitamina B12 Liposomal 500mcg Liposovit® · 120 cápsulas	Amazonfree delivery from €35	€17.90	€0.149 /capsule	45
61	Integralia Vitamina B12 30 Cápsulas · 1/2 requirements	DosFarma+€3.99 delivery	€4.99	€0.166 /capsule	45
	INTEGRALIA Vitamina B12 30caps4.7 (3) · 0/2 requirements	PromoFarma	€6.09	€0.203 /capsule	39
62	Life Pro VITAMIN B12 90 VEGANCAPS	Tienda Culturista+€6.05 delivery	€13.90	€0.154 /capsule	45
63	Hierro 29mg con Vitamina C · 45 cápsulas	Amazonfree delivery from €35	€7.16	€0.159 /capsule	45
64	Vitamina B12 PLUS Vegavero · 180 cápsulas	Amazonfree delivery from €35	€29.90	€0.166 /capsule	45
65	Vitamina B12 Vegana 2000mcg Metilcobalamina y · 120 comprimidos	Amazonfree delivery from €35	€19.90	€0.166 /capsule	45
66	Lamberts Vitamina B12 100 µg como Metilcobalamina · 100 tabletas	Amazonfree delivery from €35	€17.11	€0.171 /capsule	45
67	Solgar Vitamina B12 1000µg 100 Comprimidos Masticables5.0 (1) · 1/2 requirements	DosFarma+€3.99 delivery	€18.99	€0.190 /capsule	45
68	Solaray Ácido Fólico 1000mg y Vitamina B12 90 Comprimidos Sublinguales5.0 (1) · 1/2 requirements	DosFarma+€3.99 delivery	€14.99	€0.167 /capsule	45
69	Solgar Vitamina B12 500 µg · 50 cápsulas	Amazonfree delivery from €35	€8.83	€0.177 /capsule	45
70	MIAC Vitamina B12. Metilcobalamina B12 60 Cápsulas. 1000 mcg.	Amazonfree delivery from €35	€11.99	€0.200 /capsule	44
71	Vitamina B12 · 1000 µg · 60 cápsulas	Amazonfree delivery from €35	€12.81	€0.213 /capsule	44
72	Pure Encapsulations Vitamina B12 · 90 Cápsulas Vegetales	Amazonfree delivery from €35	€19.15	€0.213 /capsule	44
73	Solgar Vitamina B12 500 mcg (Cianocobalamina) 50 cápsulas vegetales · 1/2 requirements	DosFarma+€3.99 delivery	€11.99	€0.240 /capsule	44
74	Solaray Vitamina B12 2000mcg 90 comprimidos Sublinguales · 1/2 requirements	DosFarma+€3.99 delivery	€18.99	€0.211 /capsule	43
75	Vitamintrend Vitamina B12 500 µg + Ácido fólico 100 µg · 30 tabletas	Amazonfree delivery from €35	€6.95	€0.232 /capsule	43
76	SURA VITASAN Vitamina B12 500 μg 100 Cápsulas	Amazonfree delivery from €35	€23.71	€0.237 /capsule	43
77	DietMed Vitamina B12 2500 µg · 60 cápsulas	Amazonfree delivery from €35	€14.37	€0.239 /capsule	43
78	Vitamina B12 Liposomal · 90 cápsulas	Amazonfree delivery from €35	€21.95	€0.244 /capsule	43
79	Supradyn Expert Vitamina B12 1000 µg, 90 Comprimidos Bucodispersables	Amazonfree delivery from €35	€21.92	€0.244 /capsule	43
80	Sanon Sanon Vitamina B12 60 Cápsulas De 500Mg 60 g	Amazonfree delivery from €35	€14.80	€0.247 /capsule	43
81	Vita B12 1.000 µg 60 Cápsulas	Amazonfree delivery from €35	€14.90	€0.248 /capsule	43
82	Vitamina B12 Vegana 1000 µg · 60 cápsulas	Amazonfree delivery from €35	€14.90	€0.248 /capsule	43
83	Naturmil Vitamina B12 2500ug 60caps4.0 (2) · 1/2 requirements	PromoFarma	€16.19	€0.270 /capsule	43
84	Equisalud Holovit Vitamina B12 Activa 1.000 Μg 50 caps	PromoFarma	€12.89	€0.258 /capsule	43
85	Doctor's Best Fully Doctor's Best · Fully Active B12 · 60 cápsulas	Amazonfree delivery from €35	€16.18	€0.270 /capsule	43
86	Nat&Form Nat & Form Vitamina B12 1 mg 30 Perlas · 1/2 requirements	PromoFarma	€10.02	€0.334 /capsule	43
87	Vegano para Confort de Espalda y Piernas · 60 cápsulas	Amazonfree delivery from €35	€20.90	€0.348 /capsule	42
88	Dr. Giorgini B12 Plus 60 caps	PromoFarma	€20.86	€0.348 /capsule	42
89	Solgar Methylcobalamin Vitamina B12 \| 30 Cápsulas	Amazonfree delivery from €35	€10.99	€0.366 /capsule	42
90	Nutrición Médica B12 NM 20 Cápsulas de 1000mcg de Vitamina B12 · 1/2 requirements	DosFarma+€3.99 delivery	€8.99	€0.450 /capsule	42
91	Hierro Liposomado 30mg · 60 cápsulas	Amazonfree delivery from €35	€22.32	€0.372 /capsule	42
92	Natur Folato B12 Extra 30 caps	PromoFarma	€11.80	€0.393 /capsule	42
93	SALUGEA Hierro + B12 60caps	PromoFarma	€36.99	€0.617 /capsule	41
94	Life Pro VITAMINA B12 90 VEGANCAPS4.3 (6) · 0/2 requirements	Life Pro+€6.05 delivery	€12.64	€0.140 /capsule	41
95	b-green b.green Vitamina B12 30 Cápsulas · 0/2 requirements	DosFarma+€3.99 delivery	€4.99	€0.166 /capsule	40
96	Pridaho H4U Vitamina B12 30 Cápsulas · 0/2 requirements	DosFarma+€3.99 delivery	€4.99	€0.166 /capsule	40
97	Espadiet Valeriana + Lupulo + B12 60 caps · 0/2 requirements	PromoFarma	€12.33	€0.205 /capsule	39
98	BE-LIFE Vitaminas B12 Plus 90 caps · 0/2 requirements	PromoFarma	€23.09	€0.257 /capsule	39
99	TONGIL Estado Puro Metil B12 Ácido Fólico 60 caps · 0/2 requirements	PromoFarma	€18.00	€0.300 /capsule	38
100	Airbiotic Vitamina B12 Ab 1000 mg 60 caps · 0/2 requirements	PromoFarma	€21.59	€0.360 /capsule	38
101	Cantabria Labs B12 Nm 20 caps · 0/2 requirements	PromoFarma	€8.96	€0.448 /capsule	37
102	Enzime Sabinco B6 + B12 + Ácido Fólico Metiladas 60caps · 0/2 requirements	PromoFarma	€31.29	€0.521 /capsule	37
103	Myvitamins Vitamina B12 Comprimidos 60 TABLETS, 60raciones5.0 (2) · 0/2 requirements	Myprotein+€5.99 delivery	€5.99	€0.499 /capsule	36
	Myvitamins Vitamina B12 Comprimidos 180 TABLETS, 180raciones5.0 (2) · 0/2 requirements	Myprotein+€5.99 delivery	€13.99	€1.166 /capsule	35

106 products in this table

Out of stock right now (1), left out of the table until they are back: Now Foods Vitamina B12 (cianocobalamina) 1000mcg 250 tabletas.

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 vitamin B12

Answered with the data on this page

Which vitamin B12 should you buy?: Vitamina B12 500 µg con Ácido Fólico – 400 Comprimidos from Amazon, with 75 points out of 100 at €0.025/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 vitamin B12?: Vitamina B12 500 µg con Ácido Fólico – 400 Comprimidos from Amazon, at €0.025/capsule (400 capsules pack for 9,95 €). 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 vitamin B12 cost?: Between €0.025/capsule and €1.166/capsule across the 9 stores compared, with a median of €0.143/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 vitamin B12 have?: Of the 106 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 106 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 vitamin B128 comparisons — the same table, filtered

La mejor vitamina B12 de Amazon64 prod.La mejor vitamina B12 de DosFarma14 prod.La mejor vitamina B12 de HSN6 prod.La mejor vitamina B12 de PromoFarma15 prod.La mejor vitamina B12 barata54 prod.Amazon or DosFarma for vitamin B1278 prod.Amazon or PromoFarma for vitamin B1279 prod.DosFarma or PromoFarma for vitamin B1229 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.