Overview
![Solgar Solgar B-Complex "100"](https://m.media-amazon.com/images/I/41e3j7KgAQL._SL500_.jpg "Solgar Solgar B-Complex "100"")
SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7.8
USERS' SCORE
Good
Based on 8 Reviews
8.6
Supplement Facts
Serving Size: 1 Vegetable Capsule
Amount Per Serving
%DV
Thiamin (vitamin B1) (as thiamin mononitrate)
100 mg
8,333%
Riboflavin (vitamin B2)
100 mg
7,692%
Niacin (vitamin B3) (as niacinamide)
100 mg
625%
Vitamin B6 (as pyridoxine HCl)
100 mg
5,882%
Folate
666 mcg DFE (400 mcg folic acid)
167%
Vitamin B12 (as cyanocobalamin)
100 mcg
4,167%
Biotin (as d-biotin)
100 mcg
333%
Pantothenic Acid (vitamin B5) (as d-calcium pantothenate)
100 mg
2,000%
Choline (as choline bitartrate)
20 mg
4%
Inositol
100 mg
**
Top Medical Research Studies
7
We observed two adolescents struggling with severe sleep-wake schedule disorders respond positively to high doses of vitamin B12, specifically methylcobalamin. The 15-year-old girl with delayed sleep phase syndrome and the 17-year-old boy with hypernychthemeral syndrome showed immediate improvements after receiving 3,000 micrograms per day.
Notably, there was no evidence of vitamin B12 deficiency in either case, as their levels remained in the normal range. The girl's sleep duration reduced from 10 hours to 7 hours, while the onset of her sleep moved from 2 a.m. to midnight. The boy's sleep-wake cycle also adjusted slightly, indicating potential benefits of methylcobalamin for these disorders.
Notably, there was no evidence of vitamin B12 deficiency in either case, as their levels remained in the normal range. The girl's sleep duration reduced from 10 hours to 7 hours, while the onset of her sleep moved from 2 a.m. to midnight. The boy's sleep-wake cycle also adjusted slightly, indicating potential benefits of methylcobalamin for these disorders.
Read More
9
We examined a unique case of a 58-year-old woman with recurrent endometrial cancer who showed signs of severe depression and attempted suicide. Initially, her symptoms were believed to be linked to major depressive disorder.
However, after administering intravenous thiamine due to her dietary deficiencies, we noticed remarkable changes. Her insomnia, palpitations, and other concerning symptoms improved dramatically within just an hour, and her suicidal thoughts completely vanished.
This case underlines the importance of recognizing thiamine deficiency as a potential reversible cause of psychiatric symptoms, rather than simply attributing them to depression alone.
However, after administering intravenous thiamine due to her dietary deficiencies, we noticed remarkable changes. Her insomnia, palpitations, and other concerning symptoms improved dramatically within just an hour, and her suicidal thoughts completely vanished.
This case underlines the importance of recognizing thiamine deficiency as a potential reversible cause of psychiatric symptoms, rather than simply attributing them to depression alone.
Read More
8
Vitamin B12 aids specific sleep disorders
We looked into the effects of Vitamin B12 on two patients with long-standing sleep-wake rhythm disorders.
The first patient, a 15-year-old blind girl with a free-running sleep-wake cycle, saw her rhythm align with the environmental 24-hour cycle shortly after starting a daily dose of 1.5 mg of B12. Unfortunately, her sleep issues returned after stopping the B12 treatment.
The second patient, a 55-year-old man with delayed sleep phase syndrome, experienced improvement for over six months while on the same dosage.
While results were promising for these individuals, further research is necessary to better understand the broader effectiveness of Vitamin B12 for insomnia.
The first patient, a 15-year-old blind girl with a free-running sleep-wake cycle, saw her rhythm align with the environmental 24-hour cycle shortly after starting a daily dose of 1.5 mg of B12. Unfortunately, her sleep issues returned after stopping the B12 treatment.
The second patient, a 55-year-old man with delayed sleep phase syndrome, experienced improvement for over six months while on the same dosage.
While results were promising for these individuals, further research is necessary to better understand the broader effectiveness of Vitamin B12 for insomnia.
Read More
Most Useful Reviews
9
Improved sleep quality
203 people found this helpful
Capsules are of a manageable size for me, taken with breakfast. I noticed my insomnia has vanished, and I've felt a desire for more sleep, which is beneficial as I struggled with sleep for months. I've also become less irritable, much to my family's delight.
Read More
9
Insomnia relief
7 people found this helpful
I decided to try this vitamin complex to combat insomnia and irritability. After starting, I found I slept better and craved even more sleep. My irritability decreased significantly, and I even had more energy for household tasks. My hair and skin improved as well. Highly recommended!
Read More
9
Reduced fatigue
4 people found this helpful
A year ago, I began taking B vitamins after struggling with fatigue and insomnia. They have boosted my energy, calmed my irritability, and improved my sleep quality. I now wake up feeling more alert and refreshed. I recommend them for anyone facing similar issues after consulting a doctor.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7.8
- All Researches
9
We examined a unique case of a 58-year-old woman with recurrent endometrial cancer who showed signs of severe depression and attempted suicide. Initially, her symptoms were believed to be linked to major depressive disorder.
However, after administering intravenous thiamine due to her dietary deficiencies, we noticed remarkable changes. Her insomnia, palpitations, and other concerning symptoms improved dramatically within just an hour, and her suicidal thoughts completely vanished.
This case underlines the importance of recognizing thiamine deficiency as a potential reversible cause of psychiatric symptoms, rather than simply attributing them to depression alone.
However, after administering intravenous thiamine due to her dietary deficiencies, we noticed remarkable changes. Her insomnia, palpitations, and other concerning symptoms improved dramatically within just an hour, and her suicidal thoughts completely vanished.
This case underlines the importance of recognizing thiamine deficiency as a potential reversible cause of psychiatric symptoms, rather than simply attributing them to depression alone.
Read More
8
In a 4-week open-label study involving 40 individuals with mild-to-moderate insomnia, we explored the effects of a combination formula containing melatonin and vitamin B6.
Participants reported significant improvements in sleep quality, with average scores rising from 5.4 to 7.3 after two weeks.
Our findings also indicated enhancements in sleep onset latency and total sleep duration, all without serious side effects.
Overall, this combination treatment shows promise for those struggling with insomnia.
Participants reported significant improvements in sleep quality, with average scores rising from 5.4 to 7.3 after two weeks.
Our findings also indicated enhancements in sleep onset latency and total sleep duration, all without serious side effects.
Overall, this combination treatment shows promise for those struggling with insomnia.
Read More
8
Vitamin B12 aids specific sleep disorders
We looked into the effects of Vitamin B12 on two patients with long-standing sleep-wake rhythm disorders.
The first patient, a 15-year-old blind girl with a free-running sleep-wake cycle, saw her rhythm align with the environmental 24-hour cycle shortly after starting a daily dose of 1.5 mg of B12. Unfortunately, her sleep issues returned after stopping the B12 treatment.
The second patient, a 55-year-old man with delayed sleep phase syndrome, experienced improvement for over six months while on the same dosage.
While results were promising for these individuals, further research is necessary to better understand the broader effectiveness of Vitamin B12 for insomnia.
The first patient, a 15-year-old blind girl with a free-running sleep-wake cycle, saw her rhythm align with the environmental 24-hour cycle shortly after starting a daily dose of 1.5 mg of B12. Unfortunately, her sleep issues returned after stopping the B12 treatment.
The second patient, a 55-year-old man with delayed sleep phase syndrome, experienced improvement for over six months while on the same dosage.
While results were promising for these individuals, further research is necessary to better understand the broader effectiveness of Vitamin B12 for insomnia.
Read More
7
We evaluated the effectiveness of a nutritional supplement, SPINOFF, on sleep quality and mental health in a pilot study involving 41 participants. Initially, participants reported significant sleep issues and psychological distress.
After a 30-day treatment period, we observed significant reductions in both insomnia symptoms and sleep disturbances, with improved scores indicating better sleep quality and reduced psychological distress. For those who continued treatment, enhancements were even more pronounced.
Overall, our findings suggest that the SPINOFF supplement could be beneficial in tackling sleep difficulties and mental wellness.
After a 30-day treatment period, we observed significant reductions in both insomnia symptoms and sleep disturbances, with improved scores indicating better sleep quality and reduced psychological distress. For those who continued treatment, enhancements were even more pronounced.
Overall, our findings suggest that the SPINOFF supplement could be beneficial in tackling sleep difficulties and mental wellness.
Read More
7
We observed two adolescents struggling with severe sleep-wake schedule disorders respond positively to high doses of vitamin B12, specifically methylcobalamin. The 15-year-old girl with delayed sleep phase syndrome and the 17-year-old boy with hypernychthemeral syndrome showed immediate improvements after receiving 3,000 micrograms per day.
Notably, there was no evidence of vitamin B12 deficiency in either case, as their levels remained in the normal range. The girl's sleep duration reduced from 10 hours to 7 hours, while the onset of her sleep moved from 2 a.m. to midnight. The boy's sleep-wake cycle also adjusted slightly, indicating potential benefits of methylcobalamin for these disorders.
Notably, there was no evidence of vitamin B12 deficiency in either case, as their levels remained in the normal range. The girl's sleep duration reduced from 10 hours to 7 hours, while the onset of her sleep moved from 2 a.m. to midnight. The boy's sleep-wake cycle also adjusted slightly, indicating potential benefits of methylcobalamin for these disorders.
Read More
User Reviews
USERS' SCORE
Good
Based on 8 Reviews
8.6
- All Reviews
- Positive Reviews
- Negative Reviews
9
Improved sleep quality
203 people found this helpful
Capsules are of a manageable size for me, taken with breakfast. I noticed my insomnia has vanished, and I've felt a desire for more sleep, which is beneficial as I struggled with sleep for months. I've also become less irritable, much to my family's delight.
Read More
9
Insomnia relief
7 people found this helpful
I decided to try this vitamin complex to combat insomnia and irritability. After starting, I found I slept better and craved even more sleep. My irritability decreased significantly, and I even had more energy for household tasks. My hair and skin improved as well. Highly recommended!
Read More
9
Reduced fatigue
4 people found this helpful
A year ago, I began taking B vitamins after struggling with fatigue and insomnia. They have boosted my energy, calmed my irritability, and improved my sleep quality. I now wake up feeling more alert and refreshed. I recommend them for anyone facing similar issues after consulting a doctor.
Read More
9
Better sleep
1 people found this helpful
The capsules are of an adequate size and don't present issues while taking. I use them during breakfast, which has resulted in my insomnia disappearing, and I've started wanting more sleep—a significant improvement for me as I had struggled for months.
Read More
0
Insomnia side effect
I found the quality of B vitamins nice, but unfortunately, they have caused me insomnia.
Read More
Frequently Asked Questions
9
Improved sleep quality
203 people found this helpful
Capsules are of a manageable size for me, taken with breakfast. I noticed my insomnia has vanished, and I've felt a desire for more sleep, which is beneficial as I struggled with sleep for months. I've also become less irritable, much to my family's delight.
9
Insomnia relief
7 people found this helpful
I decided to try this vitamin complex to combat insomnia and irritability. After starting, I found I slept better and craved even more sleep. My irritability decreased significantly, and I even had more energy for household tasks. My hair and skin improved as well. Highly recommended!
7.5
Less tired
2 people found this helpful
I’ve been fatigued for years and started taking B vitamins alongside others for better sleep. I do find I feel less tired now, and my insomnia has lessened. While I still occasionally have trouble sleeping, I feel more confident about my chances of rest.
7.5
Energetic mornings
2 people found this helpful
After years of dealing with insomnia, I have tried many products. Although Solar B-Complex doesn't solve my insomnia, it helps me sleep better when taken before bed, leading to more energetic mornings. I highly recommend it for anyone who faces similar challenges.
0
Insomnia side effect
I found the quality of B vitamins nice, but unfortunately, they have caused me insomnia.
7.5
Nervous system improvement
4 people found this helpful
This is my third order of these B vitamins, and I find them incredibly effective. I noticed improvements in my insomnia and overall nervous system shortly after I began taking them. It's essential to take them in the morning to avoid insomnia at night.
7
We evaluated the effectiveness of a nutritional supplement, SPINOFF, on sleep quality and mental health in a pilot study involving 41 participants. Initially, participants reported significant sleep issues and psychological distress.
After a 30-day treatment period, we observed significant reductions in both insomnia symptoms and sleep disturbances, with improved scores indicating better sleep quality and reduced psychological distress. For those who continued treatment, enhancements were even more pronounced.
Overall, our findings suggest that the SPINOFF supplement could be beneficial in tackling sleep difficulties and mental wellness.
After a 30-day treatment period, we observed significant reductions in both insomnia symptoms and sleep disturbances, with improved scores indicating better sleep quality and reduced psychological distress. For those who continued treatment, enhancements were even more pronounced.
Overall, our findings suggest that the SPINOFF supplement could be beneficial in tackling sleep difficulties and mental wellness.
8
In a 4-week open-label study involving 40 individuals with mild-to-moderate insomnia, we explored the effects of a combination formula containing melatonin and vitamin B6.
Participants reported significant improvements in sleep quality, with average scores rising from 5.4 to 7.3 after two weeks.
Our findings also indicated enhancements in sleep onset latency and total sleep duration, all without serious side effects.
Overall, this combination treatment shows promise for those struggling with insomnia.
Participants reported significant improvements in sleep quality, with average scores rising from 5.4 to 7.3 after two weeks.
Our findings also indicated enhancements in sleep onset latency and total sleep duration, all without serious side effects.
Overall, this combination treatment shows promise for those struggling with insomnia.
7
We observed two adolescents struggling with severe sleep-wake schedule disorders respond positively to high doses of vitamin B12, specifically methylcobalamin. The 15-year-old girl with delayed sleep phase syndrome and the 17-year-old boy with hypernychthemeral syndrome showed immediate improvements after receiving 3,000 micrograms per day.
Notably, there was no evidence of vitamin B12 deficiency in either case, as their levels remained in the normal range. The girl's sleep duration reduced from 10 hours to 7 hours, while the onset of her sleep moved from 2 a.m. to midnight. The boy's sleep-wake cycle also adjusted slightly, indicating potential benefits of methylcobalamin for these disorders.
Notably, there was no evidence of vitamin B12 deficiency in either case, as their levels remained in the normal range. The girl's sleep duration reduced from 10 hours to 7 hours, while the onset of her sleep moved from 2 a.m. to midnight. The boy's sleep-wake cycle also adjusted slightly, indicating potential benefits of methylcobalamin for these disorders.
8
Vitamin B12 aids specific sleep disorders
We looked into the effects of Vitamin B12 on two patients with long-standing sleep-wake rhythm disorders.
The first patient, a 15-year-old blind girl with a free-running sleep-wake cycle, saw her rhythm align with the environmental 24-hour cycle shortly after starting a daily dose of 1.5 mg of B12. Unfortunately, her sleep issues returned after stopping the B12 treatment.
The second patient, a 55-year-old man with delayed sleep phase syndrome, experienced improvement for over six months while on the same dosage.
While results were promising for these individuals, further research is necessary to better understand the broader effectiveness of Vitamin B12 for insomnia.
The first patient, a 15-year-old blind girl with a free-running sleep-wake cycle, saw her rhythm align with the environmental 24-hour cycle shortly after starting a daily dose of 1.5 mg of B12. Unfortunately, her sleep issues returned after stopping the B12 treatment.
The second patient, a 55-year-old man with delayed sleep phase syndrome, experienced improvement for over six months while on the same dosage.
While results were promising for these individuals, further research is necessary to better understand the broader effectiveness of Vitamin B12 for insomnia.
References
- De Simone M, De Feo R, Choucha A, Ciaglia E, Fezeu F. Enhancing Sleep Quality: Assessing the Efficacy of a Fixed Combination of Linden, Hawthorn, Vitamin B1, and Melatonin. Med Sci (Basel). 2023;12. doi:10.3390/medsci12010002
- Ishida M, Sato S, Sato I, Yoshioka A, Uchida N, et al. What can cause cancer patients to attempt suicide? Thiamine deficiency mimicking the symptoms of major depressive disorder. Palliat Support Care. 2024;22:205. doi:10.1017/S1478951523001128
- Lemoine P, Bablon JC, Da Silva C. A combination of melatonin, vitamin B6 and medicinal plants in the treatment of mild-to-moderate insomnia: A prospective pilot study. Complement Ther Med. 2019;45:104. doi:10.1016/j.ctim.2019.05.024
- Ohta T, Ando K, Iwata T, Ozaki N, Kayukawa Y, et al. Treatment of persistent sleep-wake schedule disorders in adolescents with methylcobalamin (vitamin B12). Sleep. 1991;14:414.
- Okawa M, Mishima K, Nanami T, Shimizu T, Iijima S, et al. Vitamin B12 treatment for sleep-wake rhythm disorders. Sleep. 1990;13:15.
