

⚡ Elevate your energy, focus, and wellness—because average just won’t do!
THORNE B-Complex #12 delivers a scientifically balanced formula of eight active B vitamins, including methylcobalamin (B12) and folate, designed to optimize nervous system function, boost cellular energy metabolism, and support mental clarity. Third-party tested and trusted by elite athletes and healthcare pros, this clean, allergen-free supplement is your daily edge for sustained vitality and cognitive performance.



















| ASIN | B0797JXKL9 |
| Age Range Description | Adult |
| Allergen Information | Dairy Free, Fish Free, Shellfish Free, Soy Free |
| Best Sellers Rank | #2,973 in Health & Household ( See Top 100 in Health & Household ) #13 in Vitamin B-Complex Supplements #313 in Diet & Sports Nutrition |
| Brand | THORNE |
| Brand Name | THORNE |
| Color | No Color |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 3,837 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00693749112037 |
| Item Dimensions | 2.09 x 2.09 x 3.72 inches |
| Item Form | Capsule |
| Item Height | 3.72 inches |
| Item Weight | 0.11 Pounds |
| Manufacturer | Thorne Research |
| Number of Items | 1 |
| Primary Supplement Type | B-Complex |
| Product Benefits | Cognition & Focus |
| Specific Uses For Product | Nerve |
| UPC | 693749112037 |
| Unit Count | 60.0 Count |
T**E
🔬 Honest Review, Pure & Effective Energy Boost!
I’ve been taking THORNE Vitamin B12 for 5 months now, and I can confidently say it’s one of the best B12 supplements I’ve tried! Here’s my honest breakdown: 🔹 What I Love: ✔️ Highly absorbable formula, THORNE uses methylcobalamin, the active form of B12, making it easier for the body to absorb. ✔️ Energy & mental clarity, Since taking this daily, I’ve noticed a huge improvement in my energy levels, and I no longer feel sluggish throughout the day. It has also helped with my mental focus and concentration. ✔️ Supports recovery & mood, This has been a game changer for me in recovering from sleep deprivation and anxiety. I feel more balanced and less fatigued. ✔️ Clean, high-quality ingredients, No unnecessary fillers, additives, or artificial ingredients. THORNE is a trusted brand that prioritizes purity. ✔️ No weird aftertaste, Some B12 supplements have a strong taste, but this one is neutral and easy to take. 🔹 What Could Be Better: ❌ Small bottle, I wish it came in a larger size, especially since I take 2 daily! ❌ Not the cheapest option, It’s a premium supplement, but given the quality, I think it’s worth it. 🔹 My Personal Experience: I originally started taking B12 to help with energy, nervous system support, and recovery from stress, and this supplement has exceeded my expectations. I feel more alert, less anxious, and overall healthier since incorporating it into my routine. It’s now a staple in my daily supplements! 🔹 Final Verdict: 10/10 ⭐️ Would I recommend it? Absolutely! If you need a high-quality, effective B12 supplement for energy, brain function, and nervous system support, this is one of the best options out there.
A**E
Love them!
I have used this for years. It is a good value for the price to get natural quality and absorption in a capsule. There is no taste or smell which is good because I gag easily.
D**N
Good vitamins from a good company.
I'm a fan of this. Helps my energy levels, helps my gut motility. It's not always necessary, and you can tell by the color of your urine after taking it. Tastes fine, isn't too big, doesn't have an off putting smell. Can't speak to it's absorption, but I can say the effects seem to work. Thorne seems like a good brand.
A**L
Helped my mood and my 90-year-old father to get off antidepressants!
I stumbled upon this wonderful product and so glad I did! I have the C677T MTHFR mutation, as well as a COMT mutation. MTHFR converts B-12 and Folate (and other vitamins) to the active/methylated forms that can be used by the body and cross the blood brain barrier. Because I have both MTHFR and COMT mutations, it is best that I take B12 in the form of Adenosylcobalamin (along with Methylcobalamin), which this product has. I was taking Thorne Methyl Guard Plus, which has a higher potency of Methylfolate and B12 Methylcobalamin (and no Adenosylcobalamin), but noticed it made me a little irritable, edgy. So after watching a presentation by Dr. Ben Lynch (MTHFR.net) – a leader in MTHFR research - I learned that B12 Adenosylcobalamin can help reduce irritability, anger, etc. that those with COMT mutations can have when they take too much methylfolate. This supplement has helped “take the edge off” (pun intended). This particular supplement formulation seems to work for me, my son and my father. I have noticed increased energy and mood stability and less irritability in all of us. And, as for my 90-year-old father, he was on antidepressants for 10 years (as well as on and off of them for the prior 55 years). 2014 blood work showed B12 deficiency, so he started B12 (cyanocobalamin) shots, but saw no improvement, and his antidepressants were gradually increased. In October 2015, his blood work showed he was in range for B12 and folate, but his homocysteine level was high. Because of the research I had done on MTHFR, I knew right away that my dad had an MTHFR mutation, because (1) when blood homocysteine is elevated while B12 and Folate are in the normal range, that indicates the body is not properly converting folic acid to methylated folate and B12 (cyanocobalamin-synthetic form) to methylated B12 (active forms used by the body); (2) I had to get my MTHFR mutation from a parent. The form of B12 in the shots my dad was taking monthly is cyanocobalamin, which is synthetic and cheap and requires properly working MTHFR for conversion. So keep in mind that B12 and folate levels in blood work alone is not an accurate indicator of whether or not the body is actually converting to active forms required for the body to utilize. The addition of a homocysteine test is more revealing. Since my dad started taking Thorne B Complex #12, he is completely off of antidepressants and doing well! His doctors are intrigued and impressed. I gave them the information and hope they will use it to help other patients. Every person is different. It is best to start with lower potency supplements and work your way up to prevent reactions (in my case, reaction to too much methylfolate). Dr. Ben Lynch has two MTHFR mutations himself, so he has a personal interest in this field. MTHFR.net is a FABULOUS resource for those struggling with MTHFR mutations, or those who want to find out if they have such mutations. It is now believed that at least 50% of the population has some MTHFR variant (SNPs), which can cause a host of problems, including fibromyalgia, miscarriages, severe depression, autism and much more. While there is typically not one “smoking gun” that causes all our ailments, I believe MTHFR is a good place to start. MTHFR.net can tell you which tests to have and where to get them. I hope this helps someone!
M**N
Excellent B-Complex Supplement!
Disclaimer: The FDA does not evaluate dietary supplement statements, and they are not intended to diagnose, treat, cure, or prevent any disease. I am not a doctor, pharmacist, or any other medical expert. This review is not intended to diagnose, treat, cure, or prevent any illness, injury, disease, or medical condition. The intention of the review is for informational purposes only. You should consult your doctor or healthcare provider before taking any supplement(s). Dietary supplements are designed to enhance a well-balanced diet and promote a healthy lifestyle. The best ways to get vitamins, minerals, antioxidants, and to live a happy healthy lifestyle are: eating a healthy balanced diet including more vegetables and fruits, staying hydrated, exercising, weight management, stress management, not smoking, vaping, or using tobacco products, limit alcohol consumption, have a positive outlook, and get plenty of quality sleep. Supplements do not cure anything, but they may fill gaps you are missing from your diet or dietary restrictions. Remember supplements are not for everyone. Some people should avoid using supplements due to health conditions or other factors. For instance, it is unknown if certain supplements are safe to use while pregnant or breastfeeding. If you are unsure if you need to take a supplement: Consult your doctor, registered dietitian, pharmacist, or healthcare provider before starting any supplement(s). A healthcare professional will ensure that the supplements do not interfere with any prescribed medications, thus preventing potential risks or complications. Your doctor can run tests which can identify lack of vitamins, minerals, or any hormonal imbalances. During a routine blood check my doctor reported my vitamin B was low and I needed to take B-Complex supplement. I researched and tried other B-Complex supplements, and I did not feel any difference. So, I switched to Thorne B-Complex #12. Excellent B-Complex Supplement! I have been using Thorne B-Complex #12 for six months now, and I can confidently say it is one of the best B-vitamin supplements I have tried. The combination of active B12 and folate makes a noticeable difference in my energy levels and mental clarity. Additionally, during my next visit, my doctor reevaluated my blood and my vitamin B was in normal range again. I appreciate that Thorne uses high-quality ingredients without unnecessary additives. The capsules are easy to swallow, and I have not experienced any digestive discomfort, which can sometimes happen with other B-complex supplements. I also love that it is third party evaluated for purity and potency, giving me peace of mind about what I am putting into my body. What I like about the product is: 1. They use quality ingredients. 2. No digestive issues. 3. They are third party tested. What I do not like and what prevents the product from receiving a perfect 5-star rate: 1. The product is higher priced than other B-Complex supplements. If you are looking for a clean, effective B-complex supplement, I highly recommend this one!
L**S
Good vitamin
Good vitamin
R**E
Excellent nutritional company
I've trusted Thorne company for years. Quality company, quality products. I'll let you know about B complex in about 3 months, after my next CBC.
J**E
Thorne B#12 is the best and covers all the right B’s we need
I don’t care how good or what you eat, your not getting on a daily basis All of the B vitamins at this dose it is almost impossible. Just because you see a bottle that says B complex it does not mean it has the right ones or the right doses. This formula, this Thorne #12 is all you need. You take this you do not need the #6. They covered the main ones and the right dose. You should all take the time to know what each one these do and why they are crucial for us. If you don’t think you need to? Just look up what a lack of these B vitamins and the symptoms and problems they cause from mood, to anxiety to energy. This one is the Only one I take. Do yourself a favor and take it. Then look into Omega 3 Dha And Epa, then aminos, iron, zinc, magnesium. Once you get all that and you are taking them daily. You will understand why most people are depressed, anxious, moody and are tired all the time. Do not get another brand because it is cheaper. Thorne makes great stuff. Their D3 is awesome too. I am guilty of thinking I was getting enough at one point too. Now its a habit and my overall energy, mood and life is better. You want to do good in life, you must feel good. Once you know why we need this, you got to ask yourself. Why are my doctors not telling us to take this? We all are led to think, if it is not an RX, it couldn’t work.
Trustpilot
5 days ago
2 weeks ago