... lights Effect and spectrum of Color lightsRed light:1) Biologic effect: To stimulate cells activity, accelerate blood circulation;2 ... , blackheads, acne, comedy and etc.Orange light:9) Biologic effect: Stimulate cells activity, accelerate blood circulation.10) Physical ... circulation, promote skin tissue activation. Laser light:11) Biologic effect: Laser wavelength can produce energy, slowly dilute or ...