Disease analysis: Laser whitening is the most dreamy and scientific beauty method at present, and its popular trend is becoming more and more clear. Many Hollywood stars and members of the Thai royal family are the biggest beneficiaries of this technology. It can effectively treat and improve facial skin diseases such as bloodshot, facial flushing, rosacea, acne scar, pigmented spots and freckles, improve skin aging scenes such as coarse pores, wrinkles and elastic tissue degeneration, and keep women young and beautiful. Suggestion: Cool blue intelligent laser integrates nine functions-light wave firming, light wave depilation, color light rejuvenation, laser non-invasive skin rejuvenation, laser deep skin depilation, pearl light removing erythema, pearl light occupying removing scar, color light removing erythema and laser treating various vascular skin lesions. It is known as "Ferrari in skin-beautifying laser equipment".