Ultra-selective Treatment of Skin Hyperpigmentation
The method of using Q-Sw lasers for hyperpigmentation treatment has been known since the 1970s. This method is based on the formation of powerful acoustic waves in melanin’s granules, which absorb short nanosecond pulses. These waves destroy the skin cells which have melanin granules inside. If the path length of acoustic waves was limited by the size of a cell, this method might be considered almost ideal. However, there is no control over the path length of acoustic waves. It means that the treated area is obviously larger than the area of hyperpigmentation. The consequence of such treatment is hypopigmentation and slow healing, in cases of treatment of cutaneous pigmentation disorders scarring often occurs.
To solve these problems our company has developed the method of pinpoint coagulation of pigmented spots. The method is based on the coagulation of tissues that are between melanin granules. For different concentrations of melanin different parameters of laser light are selected which allows adjusting to an increased level of pigmentation for any skin phototype. To implement this method the light is used in the form of a train of Q-Sw pulses with optimized duration and intervals between the pulses. As a result of such exposure, the areas with the set distance between the melanin granules gradually warm up to the coagulation temperature. Meanwhile, all the surrounding tissues effectively dissipate heat. It does not allow them to coagulate and even reach a temperature that can cause additional melanin production.
During the exposure, the pigmented spot becomes slightly darker. After one or two minutes erythema appears which lasts for up to half an hour. Then, for one or two weeks, the treated spot becomes more saturated and then layer by layer exfoliates itself (epidermal) or loses its colour (dermal). This method allows treating cutaneous pigmentation disorders on any skin phototype without aggravating pigmentation and formation of new hypopigmented areas. There is no risk of scarring.
MULTILINE™RUBY Laser Head (694nm)
ALEX Laser Head (755nm)
Ablative treatment of pigmented epidermal naevus
In such cases when it is necessary to remove not only the pigment but also the tissue, we suggest using pulsed Er: YAG laser ablation.
Tissue is removed under excellent visual control and strictly in the area of pigmentation.
Pulsed mode and high energy density provide high-quality ablation without thermal damage to the deep layers of the skin.
MULTILINE™Er:YAG Laser Head (2936nm)