

🌿 Elevate your gut game with precision-powered probiotics!
Supersmart Bifidobacterium Longum (BB536) delivers a clinically effective 6 billion CFU daily dose in 60 delayed-release capsules. This non-GMO, gluten-free, and vegetarian-friendly probiotic supports gut microflora balance, immune health, and digestive wellness with a clean, targeted formula trusted since 1992.







| ASIN | B00LPJLBPS |
| Best Sellers Rank | #219,991 in Health & Household ( See Top 100 in Health & Household ) #1,371 in Probiotic Nutritional Supplements |
| Customer Reviews | 4.3 4.3 out of 5 stars (310) |
| Date First Available | November 21, 2015 |
| Is Discontinued By Manufacturer | No |
| Item model number | Bifidobacterium longum 25 mg |
| Manufacturer | SuperSmart |
| Product Dimensions | 2 x 2 x 4 inches; 1.06 ounces |
L**E
The only effective brand of BB536 for our dog's anxiety.
Our rescue dog has severe after dark PTSD and anxiety. He takes a sedative which helps some but I read that BB536 probiotic was useful for anxiety. This brand is the only BB536 that is actually effective for our dog. We ran low but the Supersmart brand was unavailable. We tried other brands of BB536 but they were ineffective. Once we could order the Supersmart brand again our dog had the desired effect: no anxiety or night terrors. I wish it was a Prime product with faster delivery like many of the other Supersmart products.
M**D
GUT & BOWEL Healing - WONDERFUL!!
This is really a great product! I purchased this after long research into specific probiotics that could help me heal my gut, and those that were dangerous (like Acidopholus) that I needed to stay away from while my gut was healing. Bifidobacterium longum is one of the primary GOOD Probiotics to take to start healing the gut. (NOTE: Very important -- Another benefit of this product is that it is NOT loaded with all the other probiotics and pre-biotics that are harmful when dealing with healing the bowel and the microbiome.) As I started to heal, I was able to start adding other probiotics (and finally started some prebiotics like PHGG and GOS) and I continue to use this Bifidobacterium longum and several others now (like S. Boulardii). Since the "bad" bacteria were out of control, I found it very important NOT to feed the bad critters, and found that many "healthy" foods and prebiotics were doing more damage than good. The same is true for supposedly healthy probiotics - at the wrong stage of healing, certain probiotics are so dangerous and continue to feed the bad guys. Bifidobacterium longum is one of the probiotics that can and should be taken at every stage of recovery, but are absolutely vital for the early stage of removing and killing the bad bacteria and introducing the "good" bacteria to build a healthy ratio. Beyond basic healing, this product is also a huge boost to my immune system and helps to keep the good bacteria ratios in proper order. I had a long history of diverticulitis, along with massive antibiotics each time. My bacterial balance way so far out of healthy range, and I thought that I was helping by taking regular spectrum probiotics (and even yogurt), but learned that I was hugely mis-informed and actually making it worse. The damage done by the diverticulitis finally ripped a section of the bowel, and I had a bowel perforation and was critically ill. Luckily I survived that, but needed to have surgery (and again more antibiotics) to remove the damaged portion of the large bowel (bowel resection). To recover from this I did considerable research and learned of the proper foods and probiotics to take, step by step, to heal the bowel and therefore heal me. It has been several months of careful management of what to take and what not to take. This product has been a godsend for me. Highly recommended!
R**.
Still good? Indicates expiration date of November 2025. Keeps better when refrigerated.
Indicates expiration date of November 2025. Purchased in July 2025. States on the bottle; keeps better when refrigerated. Update. Seller made good on issue. Thanks!
R**A
Good probiotic
Easy to take and didn't cause any stomach upset.
M**1
Cumple con los todo
Excelente
S**G
Intense stomach spasms; passed out
The first day I took it, I did not vary my regular diet at all or eat anything unusual or risky. I woke up with stomach spasms so severe that I briefly passed out and came close to calling EMT. So I waited a few days before taking it again, thinking maybe it could be something else that was causing the problem and not this pill. Then I took it again a week later and then again, that very night I woke up with stomach pain, spasms, vomiting, almost passed out again. It took about 20 minutes of spasms, passing out, to recover from the attack. Never took this brand again; never had the problem again. I have taken this strain of probiotic regularly for over 10 years. This is the first time I've used this brand. I don't know if it was just this brand of probiotic or whether I reacted to the additional additives that are used by this brand in their manufacturing process. I stopped taking this brand and switched to a different brand of the same strain of probiotic 2 months ago. No more problems.
T**E
Must be refrigerated..
I bought this to help with my GUT. I became lactose intolerant because of antibiotics. This is supposed to help heal the GUT. I have only taken it for a few days but haven’t noticed any difference yet. I will follow up after I finish the bottle. The one issue I have is that the bottle must be refrigerated and it came in a regular package with no ice pack.
H**Y
Great
Made yogurt with it. Fixed my stomach issues
A**.
Lo anunciado, buena calidad. Lo utilizo para fermentar leche, cual yogur.
A**R
E’ veramente un ottimo prodotto, si nota la sua efficacia fin dal primo giorno di assunzione. Il problema, per le consegne, è che non viene preservata la catena del freddo, quindi meglio non ordinarlo d’estate!
L**N
Top
D**G
Très apaisant pour l'intestin, favorise un transit régulier, des selles moulées, une exonération plus facile. L'avantage d'un germe unique est qu'on sait à quoi est dû l'effet. Évidemment l'effet d'un probiotique dépend de l'immunité de la personne et de la flore déjà en place. Doit être pris avant les repas, le coût est donc assez élevé si l'on considère que l'arrêt entraîne généralement un retour à la flore antérieure... Cependant, en entretien, une gélule par jour peut-être suffisante.
L**D
Ich hab mir gedacht: Warum nicht mal was ausprobieren, was dem Darm gut tut und vielleicht sogar die Pollenplage erträglicher macht? Die kleinen Kapseln sollen ja echt Wunder wirken. Erstmal: Einnehmen ist easy. Kein komischer Geschmack, einfach runter damit und fertig. Bis jetzt fühlt sich mein Bauch tatsächlich ein bisschen entspannter an. Ob das langfristig so bleibt? Keine Ahnung, aber die Hoffnung stirbt bekanntlich zuletzt. Die Sache mit den Allergien… naja, da erwarte ich ehrlich gesagt keine Wunder. Aber hey, wenn’s auch nur ein bisschen hilft, sag ich nicht nein.
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