A scalp serum for hair growth and thickness. Hair grows from the scalp, and the scalp is skin — which is why a healthy, well-fed scalp does more for growth than anything applied to the strands.

A repair cream for hair that has been through relaxing, colouring or heat. Damaged hair can't truly be healed — the fibre is protein and it doesn't regrow — but a good repair cream fills gaps in the cuticle so hair behaves and looks far better.