Master Supplements Theralac Multi-Strain Probiotic - 90 Servings
Master Supplements Theralac Multi-Strain Probiotic - 90 Servings
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Our review of Master Supplements Theralac finds it best suited for adults wanting a reliable, multi-strain probiotic to support regularity and gut resilience. The single biggest reason to buy is its colonizing probiotic formula that delivers 30 billion CFU of Lactobacilli and Bifidobacteria with an acid-proof delivery and a prebiotic called LactoStim to boost bacterial growth and bio-availability. The reviewer found the product practical for travel, clearly produced with stability in mind, and particularly appealing to those who want a shelf-stable, hypoallergenic probiotic backed by third-party potency testing.
Key Features
- Multi-strain formula: Contains 30 billion CFU of Lactobacilli and Bifidobacteria to provide broad intestinal coverage and support digestive regularity.
- Colonizing action: Strains are formulated to work together so beneficial bacteria can establish and promote a return to regularity and overall gut wellness.
- Patented delivery: An acid-proof delivery system helps more live bacteria survive stomach acid and reach the intestines where they can act.
- Prebiotic enhancement: LactoStim prebiotic is included to increase growth, activity, and the bio-availability of probiotic bacteria once they arrive in the gut.
- Shelf-stable design: Amber glass bottles, moisture and oxygen absorbers, and significant bacterial overage are used to maintain stability during normal storage and travel.
- Allergen-free formulation: Vegan, non-GMO, gluten free, dairy free, nut free, and soy free to suit a wide range of dietary needs.
Who It's For
This probiotic is a good fit for men and women seeking a daily supplement to support immune health, digestive comfort, and recovery of regularity after disruption such as antibiotic use. It is especially useful for travelers or those who need a shelf-stable option that still aims to deliver live cultures on arrival in the gut.
People who should look elsewhere include those who prefer refrigerated-only probiotics for ultra-long-term potency claims or consumers who need an infant or child-specific probiotic formulation. Anyone with very specific strain requirements prescribed by a clinician should verify strains before switching.
Pros & Cons
Pros
- Contains a high 30 billion CFU dose from Lactobacilli and Bifidobacteria for broad coverage.
- Patented acid-proof delivery and LactoStim prebiotic improve survival and activity of cultures.
- Formulated to be shelf-stable and travel friendly with amber bottles and absorbers for stability.
Cons
- Although shelf-stable, the label and customer notes suggest refrigeration for long-term storage, which is an extra step for some users.
Specifications
| Brand | THERALAC |
| Servings per pack | 90 servings (3 pack of 30 capsules) |
| CFU | 30 billion CFU |
| Strain types | Lactobacilli and Bifidobacteria |
| Allergen info | Vegan, non-GMO, gluten free, dairy free, nut free, soy free |
| Storage | Shelf-stable; refrigeration suggested for long-term storage |
| Quality assurance | Third-party lab testing for potency through expiration |
Our Verdict
Master Supplements Theralac is a practical, well-packaged multi-strain probiotic for adults who want a robust, colonizing formula with prebiotic support. Its combination of high CFU, acid-proof delivery, and travel-friendly packaging makes it good value for people seeking digestive regularity and immune support, provided they accept the recommendation to refrigerate for long-term storage.
Frequently Asked Questions
Is this product suitable for men and women?
Yes, the formula is designed for adult men and women and is free from common allergens like gluten, dairy, nuts, and soy.
Does it need refrigeration?
The product is shelf-stable for travel and short-term storage, but refrigeration is suggested for best long-term potency.
How much probiotic is provided?
Each serving delivers 30 billion CFU from a blend of Lactobacilli and Bifidobacteria intended for broad intestinal coverage.
Editor's Take
Theralac is a practical multi-strain probiotic delivering 30 billion CFU with an acid-proof delivery and prebiotic support, offering good value for adults seeking digestive regularity and travel-friendly stability.

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