TLDR Red LED light boosts cell activity and growth, aiding wound healing and blood vessel repair.
Red LED photobiomodulation (PBM) at 655 nm significantly enhances metabolic activity and proliferation in cultured human pericytes, as demonstrated by increased cell proliferation and upregulation of angiogenesis-related markers (Ang-1, CD146, PDGFR-β, VEGF-A) at 3, 6, and 24 hours post-irradiation. The study found no temperature elevation during LED exposure, indicating a safe application. These findings suggest that red LED PBM could be a promising non-invasive strategy for promoting wound healing and vascular regeneration by activating pericytes.
12 citations
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March 2019 in “Lasers in Surgery and Medicine” Low-level laser therapy improves hair growth and dermal papilla cell function.
520 citations
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January 2017 in “AIMS biophysics” Photobiomodulation therapy using red and near-infrared light can reduce inflammation and aid in healing various conditions.
26 citations
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July 2021 in “Frontiers in Cell and Developmental Biology” The review suggests that a special cell-derived treatment shows promise for various skin conditions and hair growth but needs more research for confirmation.
2 citations
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December 2024 in “Journal of Photochemistry and Photobiology B Biology” Pulsed wave red LED light is more effective than continuous wave light for promoting hair regrowth.
8 citations
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November 2020 in “Optics and Laser Technology” LED light therapy is effective for skin and hair treatments but requires careful use to minimize risks.
January 2024 in “Annals of Agricultural and Environmental Medicine” Red LED light therapy helps reduce hair loss and improves hair regrowth in long COVID patients.
December 2025 in “Journal of Education Health and Sport” LED therapy is safe and effective for improving skin health and appearance.
