Shop owner Becky had lovely brown hair until a head-on car crash triggered her severe hair loss; builder Jamie gets teased for his comb over.

Hattie has a disorder that gives her an uncontrollable urge to pull out her hair; Alex must treat his dermatitis before he can have a hair transplant.

32-year-old Pierre seeks help after two disastrous hair transplants; Hairdresser Harrison has spent years trying to find a solution to his flaky scalp.

James has been bald since his early 20s and wants a hair transplant to regain his confidence; Kenny seeks treatment for his patchy hair loss.

Twins Tom and James started to lose their hair as teenagers and want help to fight back; Frankie began to notice her hair loss while she was doing gymnastics as a young child.

Scalp specialist Eva Proudman helps a woman whose hair hasn't grown back after chemotherapy and Annemarie, whose hair has been thinning for a decade.