Kylie Jenner's products in her beauty range Kylie Cosmetics are thought to become ''collector's items'' one day, according to make-up artist Mario Dedivanovic.

The beauty mogul has been working closely with the Kardashian/Jenner family for many years, and he has revealed he ''hoards'' the 20-year-old reality star's make-up products she releases under her eponymous brand because he thinks they will be very valuable later in life.

Speaking to, Mario said: ''I kind of hoard Kylie make-up. I love the packaging - I think it's so cute. It's just one of those brands that I need to save and not use them because one day I know they'll be a collector's item.''

However, Mario does use the Kylie Cosmetics gel eyeliners, which are his ultimate ''favourite'' products.

He said: ''I do use her gel liners. They're actually my favourites in my kit.''

Mario has racked up a vast collection of cosmetic items, and his array of products makes his family jealous as he does not pass over any merchandise he has to them, although he may gift ''a few lipsticks'' to his sister if it is a special occasion.

He said: ''My sister and I get into so many fights over Kylie because she wants all the lipsticks and I won't give them to her. So for Christmas or her birthday I'll surprise her and give her a few lipsticks.''

Mario has not only teamed up with Kylie, but he has also been working with her half-sister Kim Kardashian West on her new beauty show titled Glam Masters, and has helped her to create the shades for the contour kits in her own namesake make-up line KKW Beauty.

And Mario has teased the duo will be launching even more merchandise in 2018, to mark a decade of working together, but he has remained tight lipped about the products.

He said: ''I can't say what the products are, but it's going to be a really fun collection that comes out 2018. Next year, 2018, is going to be 10 years, a decade, of working together [with Kim]. We've kind of had a pretty heavy influence in beauty in the past 10 years, so the collection is going to reflect that.''