I totally agree with you about the Arnica being in every TSV. I would have bought today's set but don't need any more arnica.Yet another TSV with the bliddy arnica gel!! If you don't like it there's never a TSV without it.
I like the collagen gel and the clear one ... vitamin E maybe? That one is rarely in any of the kits and I do wonder if they've stopped doing it all together.
In answer to the earlier question about aftersun, the absolute best is Decleor. Prolagene gel. Expensive but a little goes along way. It cools immediately and heals the affected area really quickly.