Makeup Eyebrows Chanel Stylo Sourcils Waterproof A retractable double-ended brow pen that is easy to apply for impeccably shaped eyebrows and a long-wear result. On one side, its tapered tip defines and colours in the brows with an adjustable thin or thick line. On the other, a spiral brush to groom brows and blend in colour. Its waterproof formula ensures a long-wear makeup result. How to use: Before application, groom brows by brushing upwards with the spiral brush.