https://onlinelibrary.wiley.com/doi/full/10.1111/ics.12329#references-section
呢一份2016嘅研究報告
題目係有咩方法減少電鬚刨引致皮膚嘅皮膚刺激
喺第四部分 Shaving and skin comfort 嘅第二段
[Skin irritation in electric shaving is largely the result of the interaction of the skin with the shaver's cutter, which happens when the skin is pressed into the small apertures of the shaving foil. The interaction with the shaver's cutter can lead to mild abrasion of the outer skin layers]
