Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.3
USERS' SCORE
Good
Based on 17 Reviews
8
Supplement Facts
Serving Size: 1 Lozenge
Amount Per Serving
%DV
Vitamin B-12 (as Methylcobalamin)
1 mg (1,000 mcg)
41,667%

Top Medical Research Studies

We conducted a case-control study to investigate the link between vitamin B12 serum levels and migraine, which affects so many people but lacks a fully understood cause. Our research included 90 individuals experiencing migraines—split into those with chronic migraines and those with episodic migraines—matched against 90 healthy participants.

We measured vitamin B12 serum levels using a reliable testing method and explored how these levels correlated with migraine intensity, as assessed by two measuring scales. Notably, we found that migraine sufferers had significantly lower levels of vitamin B12 compared to those without migraines.

Chronic migraine patients specifically had even lower vitamin B12 levels than their episodic counterparts. Additionally, there was a noteworthy negative correlation; as vitamin B12 levels decreased, the severity of migraine attacks increased. These findings suggest that vitamin B12 deficiency may have an important relationship with migraine experiences, emphasizing the need for further studies to explore this connection in detail.
Read More
We evaluated whether B vitamins, particularly B1, B6, B12, and B9, could help reduce migraine headaches in women. This rigorous double-blind, placebo-controlled study involved 120 participants who took these vitamins or a placebo for 12 weeks.

The results showed notable improvements for those taking the B vitamins, including fewer headache attacks and reduced need for medication. However, while these findings are promising, further research with larger groups and longer follow-ups is necessary to verify the effects.
Read More
7
Cerebral venous thrombosis and treatment
We explored the case of a 25-year-old man who came to the hospital with severe headaches and dizziness. Following a diagnosis of cerebral venous thrombosis, linked to his vitamin B12 deficiency from nitrous oxide use, he received treatment that included vitamin B12 supplements.

After a week of therapy, both his headaches and vision issues notably improved, allowing for discharge. This case suggests vitamin B12 could be a helpful part of treating headaches associated with specific deficiencies.
Read More

Most Useful Reviews

9.5
Pain relief
I had a severe headache and symptoms similar to occipital neuralgia previously, leading me to seek hospital treatment. After being prescribed mecobalamin, my condition improved, so I purchased it here. I take it nightly, and it has significantly alleviated my headaches and improved my sleep quality.
Read More
9.5
Headache relief
This purchase has been spot on. My headaches and eye darkening upon rising have disappeared after taking B12 from NOW for a month. The packaging is attractive, and the taste of the lollipops is delightful, offering excellent quality.
Read More
9.5
Increased productivity
Most importantly, the fatigue and headaches have vanished since taking this. I feel more productive and calmer during these stressful times. These vitamins are genuinely beneficial for my overall wellbeing.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.3
  • All Researches
9
B12 shows promise in headache relief
We investigated a unique case where a 14-year-old girl experienced prolonged headaches and nausea due to cerebral venous thrombosis linked to a rare genetic mutation. Elevated homocysteine levels were discovered during examinations, leading to anticoagulation therapy.

Notably, after receiving additional vitamins like B12, the patient reported no headaches within a month, alongside a significant decrease in intracranial pressure and thrombosis size. Although the treatment context is specialized, this case emphasizes the importance of understanding genetic factors in headache disorders.
Read More
We evaluated whether B vitamins, particularly B1, B6, B12, and B9, could help reduce migraine headaches in women. This rigorous double-blind, placebo-controlled study involved 120 participants who took these vitamins or a placebo for 12 weeks.

The results showed notable improvements for those taking the B vitamins, including fewer headache attacks and reduced need for medication. However, while these findings are promising, further research with larger groups and longer follow-ups is necessary to verify the effects.
Read More
We conducted a case-control study to investigate the link between vitamin B12 serum levels and migraine, which affects so many people but lacks a fully understood cause. Our research included 90 individuals experiencing migraines—split into those with chronic migraines and those with episodic migraines—matched against 90 healthy participants.

We measured vitamin B12 serum levels using a reliable testing method and explored how these levels correlated with migraine intensity, as assessed by two measuring scales. Notably, we found that migraine sufferers had significantly lower levels of vitamin B12 compared to those without migraines.

Chronic migraine patients specifically had even lower vitamin B12 levels than their episodic counterparts. Additionally, there was a noteworthy negative correlation; as vitamin B12 levels decreased, the severity of migraine attacks increased. These findings suggest that vitamin B12 deficiency may have an important relationship with migraine experiences, emphasizing the need for further studies to explore this connection in detail.
Read More
7
Cerebral venous thrombosis and treatment
We explored the case of a 25-year-old man who came to the hospital with severe headaches and dizziness. Following a diagnosis of cerebral venous thrombosis, linked to his vitamin B12 deficiency from nitrous oxide use, he received treatment that included vitamin B12 supplements.

After a week of therapy, both his headaches and vision issues notably improved, allowing for discharge. This case suggests vitamin B12 could be a helpful part of treating headaches associated with specific deficiencies.
Read More
We investigated the prevalence and impact of vitamin B12 deficiency in a diverse group of patients at a tertiary care hospital. With a focus on individuals aged 50 to 65, particularly strict vegetarians, we found that many suffered from significant symptoms, including headache.

Among the 220 cases studied, 95% reported head heaviness or headaches as a psychiatric manifestation, showcasing the importance of recognizing vitamin B12 deficiency. Early detection and treatment can reverse most related disorders, highlighting the need for greater awareness in clinical settings.
Read More

User Reviews

USERS' SCORE
Good
Based on 17 Reviews
8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Pain relief
I had a severe headache and symptoms similar to occipital neuralgia previously, leading me to seek hospital treatment. After being prescribed mecobalamin, my condition improved, so I purchased it here. I take it nightly, and it has significantly alleviated my headaches and improved my sleep quality.
Read More
9.5
Headache relief
This purchase has been spot on. My headaches and eye darkening upon rising have disappeared after taking B12 from NOW for a month. The packaging is attractive, and the taste of the lollipops is delightful, offering excellent quality.
Read More
9.5
Increased productivity
Most importantly, the fatigue and headaches have vanished since taking this. I feel more productive and calmer during these stressful times. These vitamins are genuinely beneficial for my overall wellbeing.
Read More
1.3
Headache and dizziness
After taking one lozenge, I developed a headache, dizziness, and a stomach ache six hours later.
Read More
9.5
Numbness reduction
I had a significant B12 deficiency, and since starting this supplement, the numbness in my fingertips and persistent headaches have disappeared within two weeks. I’m thrilled to have regained my wellbeing and energy.
Read More

Frequently Asked Questions

No FAQs are available for this product and symptom.

References

  1. Zhang M, Shi B, Zhao M. Cerebral venous thrombosis with hyperhomocysteinemia due to loss of heterozygosity at methylenetetrahydrofolate reductase (MTHFR) locus: a case report. BMC Neurol. 2023;23:154. doi:10.1186/s12883-023-03200-y
  2. Lin SS, Fan IW, Chen CY, Su YJ. A nitrous oxide abuser presenting with cerebral venous thrombosis: A case report. Med Int (Lond). 2022;2:20. doi:10.3892/mi.2022.45
  3. Singh J, Dinkar A, Gupta P, Atam V. Vitamin B12 deficiency in northern India tertiary care: Prevalence, risk factors and clinical characteristics. J Family Med Prim Care. 2022;11:2381. doi:10.4103/jfmpc.jfmpc_650_21
  4. Nematgorgani S, Razeghi-Jahromi S, Jafari E, Togha M, Rafiee P, et al. B vitamins and their combination could reduce migraine headaches: A randomized double-blind controlled trial. Curr J Neurol. 2022;21:105. doi:10.18502/cjn.v21i2.10494
  5. Arıcan P, Bozkurt O, Cavusoglu D, Gencpınar P, Haspolat S, et al. Various Neurological Symptoms with Vitamin B12 Deficiency and Posttreatment Evaluation. J Pediatr Neurosci. 2020;15:365. doi:10.4103/jpn.JPN_130_19
  6. Liampas IN, Siokas V, Aloizou AM, Tsouris Z, Dastamani M, et al. Pyridoxine, folate and cobalamin for migraine: A systematic review. Acta Neurol Scand. 2020;142:108. doi:10.1111/ane.13251
  7. Togha M, Razeghi Jahromi S, Ghorbani Z, Martami F, Seifishahpar M. Serum Vitamin B12 and Methylmalonic Acid Status in Migraineurs: A Case-Control Study. Headache. 2019;59:1492. doi:10.1111/head.13618
  8. Abdelsadek SE, Tahoun SA, Mansour FM, Abdulsalam MF, Ahmed AM. The correlation between vitamin B12 serum levels and migraine: a case-control study. Neurol Res. 2025;47:195. doi:10.1080/01616412.2025.2462735
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