Ruby (694 nm wavelength) was first used to help clients who had undergone re-constructive plastic surgery. It was developed by Professor Marc Clement at the Swansea Institute.

Ruby (694 nm wavelength) uses the melanin extract of the hair shaft to absorb the laser light, attacks the follicle but passing without causing any harm to the nearby surrounding tissues.

The wavelength used is highly absorbed in the melanin and only minimally in the surrounding tissue and the pulse length is carefully pre-set to create sufficient heat to prevent re-growth without damaging the skin.

Clinical tests show an average 80% reduction in facial hair after six months and just two treatments.
The 694 nm ruby laser has been used clinically for the removal of tattoos, treatment of congenital nevi and has recently been developed and put to use for the removal of unwanted hair, termed under the process of laser hair removal.

Laser-assisted hair removal is quick, painless, and potentially permanent and has application in reconstructive surgery, treatment of pilonidal sinuses and of unwanted hair resulting from hormonal imbalance in polycystic ovary disease.

Melanin is the major chromophore within skin absorbing at this wavelength and the ruby laser targets melanin containing hair and cells of the hair follicle.

Hair destruction is done with the logic of a process believed to be selective photo-thermolysis, with damage being confined to the hair and hair follicle and minimal thermal damage occurring to the surrounding tissues.