TLDR Isotretinoin at a low dose for three months does not significantly affect hair growth.
The study, involving 30 patients with moderate-severe acne vulgaris, investigated the impact of isotretinoin on hair growth parameters. Participants received a daily dose of 0.5 mg/kg of isotretinoin and were assessed using the TrichoScan Professional program before and after 3 months of treatment. The results indicated no statistically significant changes in hair parameters, including total hair count, hair density, and the percentage of anagen and telogen hair. Consequently, the study concluded that short-term use of isotretinoin at the specified dose does not significantly alter hair growth parameters or cause alopecia. However, the study acknowledged limitations such as a small sample size and the absence of high-dose isotretinoin administration, suggesting the need for further research with more participants, higher doses, and longer-term observation.
37 citations,
January 2013 in “Postepy Dermatologii I Alergologii” Isotretinoin effectively reduces acne but causes dry skin, higher skin pH, more redness, and hair loss.
50 citations,
September 2011 in “Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids” Maintaining the right amount of retinoic acid is crucial for healthy hair and skin.
121 citations,
June 2010 in “Australasian Journal of Dermatology” Most people on isotretinoin had chapped lips, but only a few stopped the medicine due to side effects.
21 citations,
January 2010 in “International Journal of Trichology” TrichoScan often makes mistakes and needs improvement for correct hair growth analysis.
70 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” TrichoScan is a reliable method for measuring hair growth and is useful for assessing hair loss treatments.
2 citations,
March 2023 in “Skin research and technology” Temporal triangular alopecia in infants is mostly seen in males at birth, with unique features that help with diagnosis.
Baldness is often hereditary and linked to male hormones, becoming noticeable when half the hair is lost.
30 citations,
May 2018 in “Experimental Dermatology” The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.
Some treatments like minoxidil, finasteride, and surgery can help with hereditary hair loss.
January 2007 in “Strait Pharmaceutical Journal” 
January 2001 in “Nishi Nihon hifuka” The document concluded that there are differences in hair growth cycles and skin cell turnover rates, which can be measured with electronic equipment.
