A hair lotion containing the probiotic N793 for thinning hair Original paper

In this randomized controlled trial, a hair lotion containing the probiotic Lactiplantibacillus plantarum subsp. plantarum N793 had mixed effects on scalp hair parameters in Japanese adults with self-reported thinning hair.

This Study Summary was published on September 3, 2024.

Quick Summary

In this randomized controlled trial, a hair lotion containing the probiotic Lactiplantibacillus plantarum subsp. plantarum N793 had mixed effects on scalp hair parameters in Japanese adults with self-reported thinning hair.

What was studied?

The effect of a hair lotion containing the probiotic Lactiplantibacillus plantarum subsp. plantarum N793 (N793) on scalp hair parameters in the context of hair thinning.

The outcomes included the following:

  • Hair parameters (assessed using a digital microscope): hair density, hair diameter, percentage of vellus hairs (peach fuzz), percentage of nonvellus hairs, anagen-hair density (i.e., the amount of hair that increased in length during the study), telogen-hair density (i.e., the amount of hair that did not increase in length during the study), and the ratio of anagen-hair density to telogen-hair density
  • Hair loss numbers, assessed by counting the number of hairs shed during a 3-minute hair wash by a hairdresser
  • Subjective hair loss
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Who was studied?

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How was it studied?

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What were the results?

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Anything else I need to know?

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This Study Summary was published on September 3, 2024.