I would suggest that any changes to the surface of the skin will alter the absorption to some extent - no idea how much or whether significant.
As CLKD says - I would avoid applying gel to the area you have applied fake tan to - but only if recent application of fake tan if you see what I mean? Once the fake tan has been absorbed and done its job and sufficient time has elapsed - and you have showered etc your skin will be pretty much the same as before (I imagine!) - because the cream - which could act as a barrier - will no longer be there?
Hurdity x
