Designer and manufacturer of new technology
for treatments in cosmetic dermatology

The hair is mainly composed of keratinocytes that synthesize keratin, and melanocytes which are responsible for the production of melanin. In photo-depilation, intense pulsed light is absorbed by the melanin (coloured pigment) contained in the hair. This is then channelled to the “root” (hair shaft, hair follicle, epithelium and matrix). When the light meets a chromophore, it is converted into heat; the thermal effect destroys the germ cells responsible for hair growth. These are located approximately 4-6mm under the skin.  Hair acts as a conductor of energy to these cells, therefore, the hair must be in the “anagen” phase (phase at which the bulb and the hair shaft are attached to the root). Dark skin contains a higher concentration of melanin. From the cornea layer, the skin can act as a competitive chromophore when targeting the melanin in the hair. Specific filtration is necessary up to 690 nanometres, and is limited in exposure using the range of wavelengths from 420 to 690nm which allows the destruction of the bulb while preserving the skin.  The use of an Nd-YAG laser for hair removal only gives temporary results as opposed to IPL.

According to our clinical study conducted by the Group for Research and Evaluation in Dermatology and Cosmetology (GREDECO) on volunteers recruited from the Hospital Pitié-Salpêtrière in Paris, the subjects who completed treatment for hair removal on dark skin showed very satisfactory results with an excellent tolerance level

Multipulse is an important parameter that reflects the TRT (thermal relaxation time) of the skin which is relative to the target chromophore which avoids the risk of burns caused by single flashes that are too long. To completely preserve dark skin during hair removal treatments it is necessary to increase the number of pulses, reduce the pulse duration and increase the interval between pulses.

Excellent results, 60% of hair missing after the third session.

A contrast between skin colour and hair is essential for this treatment. The hair should always be darker (more loaded with melanin) than the skin.