that stuff seems to be priced like gold dust .. I've used some german sonax which seems to bond well at a fraction of the price applied with a tooth brush on mottled dash/exterior
It definitely seems silly expensive (the bottles are tiny), but its worked well for me.
I applied it to a very faded (the trim was light grey) Civic in 2016 and reapplied it earlier this year because it had started to fade a little.
Actually more impressed with the stuff now I've just realised (time flies) there was a 3 year gap!