Hair removal equipment (IPL/ laser type) Photothermal decomposition effect: By using intense pulsed light (IPL) or specific wavelengths of lasers (such as 590-1200nm) absorbed by melanin in hair follicles, it is converted into thermal energy to disrupt the growth cycle of hair follicles, achieving permanent or semi-permanent hair removal. For instance, the Ulike dual-lamp technology gradually accumulates energy to 26J by alternating flashes (0.25 seconds per flash), enhancing efficiency and reducing the risk of damage from a single high-energy flash. Energy parameters: The energy density of household equipment is usually 4-7J/cm² (professional equipment can reach over 10J/cm²), the pulse frequency is 1Hz, the single processing area is 3-4cm², and the whole body hair removal takes 10-15 minutes. Repeated exposure should be avoided to prevent thermal damage to the skin. Beauty phototherapy lamp (LED/ infrared type) Wavelength specificity: Red light (630-700nm) stimulates collagen production and reduces wrinkles; Blue light (400-470nm) has antibacterial and anti-inflammatory properties (such as for acne). Yellow light (570-590nm) improves skin texture and color. Near-infrared rays (700-1400nm) deeply penetrate to promote microcirculation and wound healing. Energy control: The safe energy density should be ≤200mW/cm². If it is too high, it may cause burns or pigmentation. The device should be marked with the actual energy value on the face (not the original output of the lamp beads) and verified by a third-party laboratory. Composite heating lamps (such as graphene + spectral) Brands like Defu combine graphene heating films (far-infrared radiation) with multi-spectral leds. Through the warming effect, they expand pores and promote the absorption of skin care products. At the same time, they work in synergy with red/blue light to enhance anti-aging or anti-inflammatory effects. It is necessary to control the temperature (such as three Settings of low temperature, medium temperature and high temperature) and the irradiation distance (10-20cm) to avoid thermal damage.
