I recently wrote a detailed article on improving skin quality for formerly obese individual. Number one being building muscle and losing fat sub 10%. However I talk about other things including water intake, anti-oxidants, retinol, HGH/GHRP/GHRH peptides, preperation H, tanning, different things to tighten skin and of course time.
I myself have drastically improved my skin the last 4 years but it still needs work.
I thought var helped for sure, but I want some solid evidence and anecdotal experience, far more interested in studies though.