As previously stated, Dr. Minbo's treatment consists of platelet rich plasma which contains:
platelet-derived growth factor
transforming growth factor beta
fibroblast growth factor
insulin-like growth factor 1
insulin-like growth factor 2
vascular endothelial growth factor
epidermal growth factor
Interleukin 8
keratinocyte growth factor
connective tissue growth factor
https://en.m.wikipedia.org/wiki/Platelet-rich_plasma
From Pubmed:
"
epidermal growth factor, transforming growth factor alpha, insulin,
IGF-1, and
IGF-2 are important for regeneration/repair in the mammalian labyrinth."
https://www.ncbi.nlm.nih.gov/m/pubmed/9751665/?i=6&from=/9263028/related
Notice he doesnt advertise or explain this, I had to dig for it and it looks like there is a rational/evidence based argument for his treatment.