Removing paint, scuffs and scratches from paintwork

After scraping my passenger door against a concrete pillar, I thought I would have a go at getting rid of the white paint that has been scratched onto the paint work. I have read about a products such as T-Cut scratch remover and Farecla G3, but I have never used them myself. Has anyone used products such as these to improve the shine on their cars?

If it's only faint it should buff out but I've never found T cut worth bothering with

Agreed.  SRP is a mild abrasive and polish, so will be better to use than T Cut style products.

I have used g3 many time works well after wet flatting hole car with 1200 then 2000 grit sand paper.
there are different types of g3 compound tho also good for blending new paint work into old..