Koga
Established Member
- Reaction score
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The study is probably flawed as there were only 9 participants involved, but still. Individual hair diameter would seem to improve by 7% (I don't know how visible this would be?), but more importantly and I quote:
What does this mean? Is applying mechanical force to our scalp probably worth the little effort or can we conclude no such thing from this study?
Link to the study
"Finite element method showed that scalp massage caused z-direction displacement and von Mises stress on subcutaneous tissue. In vitro, DNA microarray showed gene expression change significantly compared with nonstretching human dermal papilla cells. A total of 2655 genes were upregulated and 2823 genes were downregulated. Real-time reverse transcription-polymerase chain reaction demonstrated increased expression of hair cycle-related genes such as NOGGIN, BMP4, SMAD4, and IL6ST and decrease in hair loss-related genes such as IL6."
What does this mean? Is applying mechanical force to our scalp probably worth the little effort or can we conclude no such thing from this study?
Link to the study
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