What Amount of Hair Do Women Want?

In the study by Robbins et al., involving 1414 adult women, it was found that hair density decreases with age, but until the age of 40, this loss is compensated by an increase in hair fiber diameter. This compensation may be why women often seek treatment for hair loss around menopause. The study highlights the challenges in treating hair loss, including the lack of highly effective treatments and the need for accurate tools to measure treatment response. Current treatments for female pattern hair loss can result in a 10-20% improvement over 6-12 months. The most important outcome for patients is visible hair volume, which is difficult to standardize in measurements due to factors like hair greying and styling. The study also introduces a new measure of hair amount that considers both hair density and fiber diameter, which may improve the assessment of treatment response in the future.