The V Beam Perfecta is a pulsed dye laser (PDL) that emits yellow light at 595nm from a hand piece held close to your skin. Described as the most significant advancement in acne treatment for decades, PDL laser treatment is safe, virtually painless, fast and effective.The biggest breakthrough in the treatment of Acne Vulgaris in 20 years Tony Chu consultant dermatologist at Hammersmith Hospital in West LondonOver 92% of patients reviewed after a single treatment had a significant improvement. Over 50% of patients had a 50% reduction in lesions after a single treatment The Lancet Vol 362