L'Oreal Kerastase (from hair salons or $80 per 250ml from shop.hqhair.com) 'The line is suitable for people in Hong Kong because most people tend to have oily scalps and dry ends.' Jackson Yung, artistic director, Il Colpo Salon L'Oreal Vitamino (from hair salons or $58 per 250ml from www.hairstyling.co.uk ) 'It leaves colour-treated hair silky smooth and deeply moisturised. You can use it everyday because it won't dry ends.' Johnny Chung, technical director, Esprit Hair Salon Shiseido ($98 per 200ml from Sasa) 'The chemicals and cleansing agents are mild for the scalp, so it's suitable for everyday use. It's pH-balanced and not too drying on the hair.' Cammy Ma, technical director, Headquarters Newtiveline ($131 per 400ml at www.milbon.co.jp ) 'I would recommend this Japanese shampoo for colour-treated or permed hair. It's moisturising and stops colours fading.' Sunny Yu, creative director, Hair Culture 2001 ($90 per 320ml from city'super) 'It contains Chinese herbal medicine extracts. The cleansing agents are mild for everyday use and very effective in unclogging pores - excellent for preventing hair loss and expediting hair growth.' Jun Leung, technical director, Orient 4