PN and PDRN have been shown, albeit in small studies to help in:
1) iImprovement of Alopecia Areata (autoimmune localised balding)
2) Wound healing
3) Pigmentation through the reduction in melanocyte (pigment cell) activity
4) Improvement in some skin sensitivity conditions like eczema
Anecdotal experience in my own practice tells me that the latter 3 are true.
I know that some clinics seem to promote it as a magical panacea for all kinds of skin scarring etc, but if you are a patient looking for good results through minimally invasive means, the appropriate use of PDRN and PN can be a good option to try! You should contact your doctor to discuss the benefits.
Winston