Biostimulation Laser — Hair & Tissue Repair

Biostimulation laser, also called low-level laser therapy (LLLT) or photobiomodulation (PBM), delivers non-ablative, non-thermal photonic energy at specific wavelengths — typically in the red (630–670 nm) or near-infrared (780–830 nm) range — that penetrate the tissue and are absorbed by chromophores within the mitochondria, specifically cytochrome c oxidase. This absorption upregulates mitochondrial ATP synthesis, increases reactive oxygen species…

At Esthetic Medical, biostimulation laser has two primary clinical applications. The first is hair loss treatment (androgenetic alopecia, diffuse alopecia, and post-partum hair loss): the laser is applied to the scalp at calibrated fluences to stimulate the follicular stem cells in the bulge region, extending the anagen (growth) phase and shortening the telogen (rest) phase. Clinical studies report a meaningful increase in hair shaft diameter and density…

The second application is wound healing, scar maturation, and tissue repair — the indication that prompted a positive Estheticon review specifically highlighting scar treatment with biostimulation laser. At the cellular level, photobiomodulation accelerates fibroblast proliferation, increases type I collagen deposition, and improves capillary ingrowth — all of which speed the maturation of hypertrophic or keloid scars toward a flatter, softer, less…