Originally Posted by Steven Low
That would make sense as platelets should be more effective at healing than an irritant salt solution
Prolo is a dextrose- and anesthetic-based (procaine or lidocaine) solution. Practitioners may add a bunch of other things, ranging from methylcobalamin (B12) to injectable Traumeel or Zeel.
I'm not too familiar with the standard solutions for PRP other than the obvious ingredient.