INVESTIGATING THE IMPACT OF LOW-LEVEL LASER TREATMENT ON HAIR GROWTH AND SCALP HEALTH

Abstract

Background: In terms of aesthetics, the look of the scalp and hair is critical, regardless of gender or age. However, a range 
of therapeutic procedures and medicines have been proposed for hair loss and scalp issues, but the results have been 
insufficient.  
Aim: The current study investigated the effects of low-level laser treatment on hair growth and scalp problems.  
Methods: The current study evaluated 100 participants over a 24-week period. For 24 weeks, all 100 research participants 
were exposed to a helmet-shaped device that emitted light at wavelengths of 630-690, 820-880, and 910-970 nm for 20 
minutes every day. At baseline, 12 weeks, and 24 weeks, all research participants had their scalp sebum secretion, erythema 
index, Global Aesthetic Improvement Scale score, and photrichogram for hair thickness and density measured.  
Results: After 24 weeks of therapy, hair thickness and density increased significantly (p=0.01 and <0.1, respectively). There 
was a substantial reduction in sebum excretion from the vertex region (p<0.1). 73.47% (n=72) of the 98 research participants 
showed improvement in their overall scalp look.  
Conclusions: The current study shows that using a helmet-like low-level laser treatment equipment can assist improve the 
overall appearance of the hair by increasing the density and thickness of the hair. It can also help to promote scalp health by 
reducing sebum secretion. 
Keywords: Hair loss, low-level laser treatment, scalp, sebum, and bronchogram