凹凸洞, or acne scars, are one of the most challenging skin concerns to treat, as they involve both textural irregularities and underlying collagen loss. The Fotona 激光 system, with its dual-wavelength technology, offers a multi-faceted and highly effective approach to significantly improve the appearance of these scars by working on both the surface and the deeper layers of the skin.

Treatment for 凹凸洞 with Fotona 激光 involves a strategic combination of its two wavelengths. The Er:YAG laser is used for its precise ablative properties in a fractional mode. It works by creating microscopic holes in the skin, which effectively resurfaces the skin and levels the edges of the scars. This process directly addresses the uneven texture and promotes the formation of new, healthy skin cells to fill in the depressed areas.

Simultaneously, the Nd:YAG laser plays a crucial role in treating the underlying cause of the scarring—the loss of structural support. By delivering controlled thermal energy deep into the dermis, it triggers a powerful wound-healing response without damaging the skin's surface. This stimulates neocollagenesis—the production of new collagen—over time. As new collagen fibers form and remodel, they plump up the depressed areas of the 凹凸洞, raising the scar floor and improving overall skin elasticity and firmness. This combination of surface resurfacing and deep collagen induction makes Fotona 激光 a highly effective and comprehensive treatment for atrophic 凹凸洞.