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Clinical comparison of salicylic acid peel and LED-Laser phototherapy for the treatment of Acne vulgaris in teenagers.
Blue and red light facial and back therapy immediately improved acne symptom better than salicylic acid treatment . “The number of comedones, papules and pustules decreased significantly at the end of the session.”
- Blue 415-490 nm
- Red 630-700 nm
Researchers said that red and blue light were more effective than salicylic acid treatment because blue added antibacterial and anti-inflammation effects.