Low level laser light (LLLL) treatment may help improve hair growth. It is not clear how the treatment might work but it may promote the growing (anagen) phase of the hair cycle, resulting in longer and thicker hairs. There are different types of devices which deliver LLLL such as caps, helmets and combs. The devices can be expensive and the treatment needs to be used 3 - 4 x per week on a regular basis.

The treatment is usually well tolerated but mild scalp irritation can occur.

Low level laser light treatment might be suggested for people with the following alopecia types:

androgenetic alopecia (male and female pattern hair loss)