They charge lots of money whereas donation is free. Donation will take out about 25% of plasma volume per 4 wks assuming you do routinely. Your albumin will be replaced by your liver very quickly, or at least it does for me (I've tested). TPE volume in single sitting is usually a lot higher, at least 50%.
@@peterz53 I've started donating at a local clinic and I make $100 per donation. There's no way I can afford to go to a regenerative medicine place that does therapeutic plasma exchange at six grand per visit.
What's the price of a treatment? A treatment series? The machine that does it? (It might be cheaper to buy the machine if we need to use it for say a decade or two before new therapies replace this.)