BioStacks
Best for
Ingredients (6)
LAB4 Probiotics
100%Dose
25 billion cfu
Target
1–100 B CFU
Form
Not listed
Fructooligosaccharides
2%Dose
100 mg
Target
5000–10000 mg
Form
—
Bifidobacterium animalis subsp. lactis (CUL 34 )
Amount not found
Lactobacillus acidophilus CUL-60
Amount not found
Bifidobacterium bifidum CUL-20
Amount not found
Other Ingredients (5)
Titanium DioxideColorant
Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Best taken in the morning
Live strains survive stomach acid best taken with or just before a meal — after a meal is the worst option. Consistency matters more than the clock.
With food
Keep it away from hot food or drink
On the label
As a dietary supplement, take one capsule daily with food. One to two additional servings may be taken daily as desired for added support.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$39.99
Near the median of 133 probiotics supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.