Fight frizz

The main cause of frizz is almost always dehydration. If hair is well-hydrated though, it won’t absorb this environmental moisture and will be less prone to fuzz. OGX Frizz Free+ Keratin Smoothing Oil Shampoo and Conditioner, £7.99 each, Superdrug, are enriched with Argan oil and ceramide to strengthen and smooth. We’re big fans of Color Wow Dream Coat, £26, colorwowhair.com, which cloaks hair in a smooth, silky finish that repels moisture, whether you have straight, wavy, or curly hair. Spritz liberally on damp hair, then blow-dry.