Barbers say line-ups need weekly trims yet this curve technique lasts 3 weeks
December 2025, bathroom mirror reflection staring back. Running fingers along an uneven hairline after another DIY trim attempt. The visible M-shape forming at my temples tells the story barbers warn about. “Line-ups need weekly maintenance or your hairline recedes,” they say. Yet trichologists studying 500 men with traction alopecia reveal the opposite truth. Traditional straight-line … Lire plus









