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Study Reveals Hair Growth Driven by Surrounding Cells

12/5/2025

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Summary

Story summary

A study by L'Oréal Research & Innovation and Queen Mary University of London finds that hair grows by being pulled upward by surrounding cells, not pushed from the root.
Using 3D live imaging, researchers show that blocking cell division does not stop hair growth.
Inhibiting actin reduces hair growth by over 80%, as the findings published in Nature Communications show.

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Story summary

A study by L'Oréal Research & Innovation and Queen Mary University of London finds that hair grows by being pulled upward by surrounding cells, not pushed from the root.
Using 3D live imaging, researchers show that blocking cell division does not stop hair growth.
Inhibiting actin reduces hair growth by over 80%, as the findings published in Nature Communications show.