





From the brand




Foundational Wellness




Sports Nutrition


Is Discontinued By Manufacturer : No
Product Dimensions : 2.58 x 2.58 x 4.94 inches; 4.9 ounces
Item model number : B131
Date First Available : September 13, 2007
Manufacturer : Thorne Research
ASIN : B0012XP4MI
Best Sellers Rank: #9,359 in Health & Household (See Top 100 in Health & Household) #11 in Vitamin B3 (Niacin) Supplements
Customer Reviews: 4.6 4.6 out of 5 stars (1,923) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Vitamin B3: A non-flushing form of vitamin B3
Sleep: Supports restful sleep*
Joints: Supports joint health*
Third-Party Certified: This product has been third-party tested and certified to verify what’s in the package matches what’s on the label and to confirm it contains no unsafe levels of contaminants
Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)

Jess Rae –
Can’t beat Thorne, imitations need not apply!
As a woman experiencing pre-menopausal symptoms, I can’t recommend Thorne products enough! Their Niacinamide capsules have been a game changer for me. My holistic provider recommended Thorne as one of the cleanest and most effective supplement brands out there, and I can see why. I feel a noticeable difference in my skin, joint comfort, and overall sense of calm, especially when it comes to restful sleep. It’s hard to find such high-quality, natural supplements, and Thorne truly delivers. Knowing these are gluten-free and formulated without unnecessary additives gives me peace of mind. Highly recommend to anyone looking for clean, effective support!
GAIL CHAFFIN –
Good product
Good product
James S. Blakeslee –
Helps to prevent skin issues.
Serves its purpose and helps prevent poor skin issues.
Jenn –
I don’t really see any benefits yet but my face was starting to break out.
I only took these for about 2 weeks with my lunch but stopped because my face was starting to get a lot of bumps and break out. I don’t normally get break outs (I’m 42 yrs old now) and I didn’t have an issue with acne as a teen but started breaking out on my cheeks after taking these. I stopped to see what happens and my face is clearing back up. I had bought these thinking these were the pills my husband’s doc was recommended but it was something else. I decided to take these anyways and now have stopped due to the breakouts. I might try them again later down the road but as of right now I would not recommend them since I’m not prone to breakouts but it still caused me breakouts.
Chimommy –
Everyone should take this!
This is an excellent product to treat skin issues!! Dramatically helps my rosacea prone skin without any side effects! Was recommended by my dermatologist and I will continue forever. Also helped my husband after getting a nasty cut on his forehead. Thought it would scar, but healed so quickly with no scar at all!
Cinderella 111 –
Water soluable B3 for better skin, I hope!
Many of us think that Thorne is a good brand, usually NSE certified and produced without unnecessary additives. This niacinamide has calcium laurate, which is being used as a flow agent, I think, and though it’s GRAS, I would prefer that it wasn’t in the supplement.I have recently discovered that the NIH suggests 500 mg. of niacinamide taken three times daily can help prevent the growth of actinic keratosis. My dermatologist told me to let him know what I find, because I get them often. He knew nothing of the studies or recommendation by the National Institute of Health. So, I look forward to results!In the meantime, the capsules are easy to swallow, have no smell to me, are not huge and were not frightfully expensive!
Natalie Nunez –
Great for acne
Helps with acne and aids with sleep. Been taking this specific supplement for years now. My skin is flawless.
anastasia b –
Good for skin but bad side effects
So I’ve never actually experienced side effects from a vitamin before. At first I didn’t even think to attribute what I was feeling to these vitamins, but then when I stopped taking them I noticed all my issues stopped. For me, it gave me a mild headache, nothing to terrible but not pleasant. For me the worst part was I had to pee literally every 20 minutes. It felt like anything I drank would go right through me. I felt super dehydrated. However, I will say I noticed a almost immediate improvement in the tone of my skin. It sucks because I love what it did fir my skin but I cant deal with having to use the bathroom so frequently.
merline sularte –
my doc suggested to take supplements andit really helped improve my overall wellness
Nerida P –
During my research I continually read comments about ‘hard to swallow’ and ‘large tablets’ so I was pleasantly surprised that this niacinamine was in capsule form.
Mayssoun alaya –
يدعم النوم واستعمله لمعالجة ارتفاع الكوليسترول
Huge –
Good
Tstar –
Doesn’t say non flushing on the product so how am I supposed to believe it