1.IPL (Intense Pulsed Light):
The device emits a broad spectrum of high-intensity visible light (usually ranging from 500nm to 1200nm).
This light is absorbed by specific chromophores (targets) in the skin, primarily melanin (in hair shafts and dark spots) and oxyhemoglobin (in blood vessels).
The absorbed light energy is converted into heat, which thermally damages the target without harming the surrounding tissue.
For hair removal, the heat disables the hair follicle, inhibiting future growth. For skin treatments, it breaks down pigmented lesions and coagulates small blood vessels.
2.NIR (Near-Infrared Light):
NIR emits longer wavelength light (typically around 700nm-1200nm) that penetrates deeper into the dermis and subcutaneous tissue than IPL.
Its primary target is water within cells and collagen fibers.
The energy gently heats the deep dermal layers, stimulating a natural wound-healing response. This process promotes neocollagenesis (new collagen formation) and neoelastogenesis (new elastin formation).
Synergy: When used sequentially, IPL addresses surface and mid-depth concerns (pigmentation, redness, hair), while NIR provides a deeper, sub-surface rejuvenation, tightening skin and improving texture from within.