The term 皮秒 (picosecond) has become synonymous with a new era of laser treatments. A 皮秒 laser emits light energy in pulses that last just picoseconds—that's one trillionth of a second. This incredibly short pulse duration is the key to its effectiveness and safety, fundamentally changing how we treat pigmentation and rejuvenate the skin. Traditional lasers use a nanosecond puls... https://www.femio.com.hk/fotona.php