Advice needed... air con leak fix opinions?

I have another thread about air con for my trip down south, basically my air con has leaked it's contents over the last 5 months, and I would like to get it working again.

I see halfrauds sell a Leak Fix here:
http://www.halfords.com/webapp/wcs/..._productId_253959_langId_-1_categoryId_35126#

And a re gas kit here:
http://www.halfords.com/webapp/wcs/...1_productId_201507_langId_-1_categoryId_35126

Any advice gratefully accepted!

Get a professional to look at it. A leak stopper will only stop minor leaks from a perished hose at best, anything more substantial and it's a waste of time.

Chances are the regas kit won't contain enough gas to completely fill the system so it will either perform poorly or you'll need 2. It would be cheaper to get a pro to gas it in that case.

Take it to a professional.

If it's that minor it won't cost much to have put right, properly, either.