Probiotic

Lactobacillus acidophilus

Also known as: Acidophilus, Bacillus acidophilus, L. acidophilus, Lactobacillus acidophilus

Evidence

Foundational probiotic strain for vaginal and gut health. One of the most studied probiotic species.

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Primary uses

Gut health
Vaginal health
Immune support
Lactose digestion

How it works

Produces lactic acid
Inhibits pathogens
Supports gut barrier

Dosage

Typical range: 1-10 billion CFU daily
Timing: Any time
With food: Can take either way
Duration: Safe long-term
Special populations: Women's health, antibiotic recovery

Forms

Capsules
Powder
Foods

Safety

Common side effects

Gas initially

Contraindications

Severe immunocompromise

Products containing Lactobacillus acidophilus

Top-scoring supplements in our catalog that list Lactobacillus acidophilus on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

Thorne

FloraSport 20B®

Thorne

Women's Daily Probiotic

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Evidence notes

Well-studied probiotic strain

Grade A: Multiple well-designed human trials support the main claims.

Related in Probiotic

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.