A kevlar belt by itself probably does reduce your risk of punctures, but nothing really eliminates it.
There's a product in the USA called
Mr Tuffy; not sure if it's available where you live, though I'd imagine there's something like it. It's a belt that fits between your tire and tube. It is effective against punctures from most road debris, but of course will do nothing for snakebite flats, puncture-weed flats, that sort of thing. It also really changes the feel of your ride--you'll have to decide whether you prioritize ride quality or puncture proofing.
Schwalbe's Marathon Plus tire has a reputation for being heavy but bulletproof; in Schwalbe's line, I believe anything with "plus" in the name has a puncture-resistant layer in the tread.