December 2024 in “Dermatologic Surgery” Dual wavelength LED caps can safely increase hair density in androgenetic alopecia.
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June 2018 in “Dermatologic Surgery” Low-level light therapy safely improves hair coverage, thickness, and count in androgenetic alopecia patients.
January 2021 in “Medpulse International Journal of General Medicine”
December 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Low-level light therapy significantly increased hair density and thickness in people with hair loss, but they didn't notice a difference.