Which probiotic contains GR-1 and RC-14? Read both strain codes

Find the complete strain pair

The inspected Jarrow formula lists Lacticaseibacillus rhamnosus GR-1 and Limosilactobacillus reuteri RC-14. Older labels and articles may use Lactobacillus names. Its one-billion-CFU statement describes the combined blend, not one billion of each strain. [1][2]

A label match is not a universal best-product verdict

Probiotic evidence depends on the organism, intended condition and preparation. Confirming these two codes establishes a formulation match; it does not establish superiority over all other products or prove that a supplement treats an active urinary or vaginal infection. Product marketing and a diagnosis are different kinds of information. [2][1]

Compare the package you will actually use

Imagine choosing between a product listing these exact codes and one listing only rhamnosus and reuteri. The second label does not establish the same strains. Check the current serving, expiry and storage directions as well: the inspected shelf-stable Jarrow product specifies cool, dry storage at or below 25°C. [1][2]

Hypothetical example — compare the actual formulation with the intended purpose
Check	Interpretation
GR-1 and RC-14 both listed	Matches the named pair
Species without codes	Strain identity remains unverified
Combined CFU	Do not assign the total to each strain

Which probiotic contains GR-1 and RC-14? Read both strain codes — original article outline diagram — Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

Fem-Dophilus® 1 Billion CFU Women's Probiotic | Jarrow
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
Probiotics - Health Professional Fact Sheet
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.