Rejuran, also known as Rejuran Healer or PN (Polynucleotide) treatment, is a popular skin rejuvenation procedure that can help improve the appearance of old scars. It works by promoting skin regeneration and healing, thanks to its DNA fragments derived from salmon. These fragments are biocompatible with human skin and help to repair damaged skin cells, increase collagen production, and improve skin texture and elasticity. Patients who have undergone Rejuran treatment for old scars often report a noticeable improvement in their skin's overall appearance, with scars becoming less visible and skin texture becoming smoother. However, the degree of improvement can vary depending on the individual's skin condition, the age of the scar, and the number of treatments received. As for the cost, Rejuran treatment can vary widely based on location, the clinic, and the extent of the treatment needed. On average, the price per session can range from $300 to $600. Multiple sessions are usually required for optimal results, so it's important to consult with a qualified dermatologist or aesthetic practitioner to get a personalized treatment plan and cost estimate. If you're considering Rejuran for scar treatment, it's recommended to schedule a consultation with a professional who can assess your specific situation and provide tailored advice.