Who knew a beauty highlighter could be a woman's best friend? I was recently introduced to a highlighting product that doubles as a line filler, and love the results. Newly launched by FusionBeauty, IllumiFill Line Filling Luminizer with Amplifat™ plumps lines while highlighting skin for a gorgeous glow. You may have seen ads for IllumiFill featuring Kim Kardashian. With amazingly structured cheekbones, it's no wonder she was chosen for the campaign.

The secret behind IllumiFill is Amplifat™, an ingredient containing hyaluronic acid which instantly fills in lines and wrinkles, giving the appearance of youthful looking skin. (Amplifat™ is the same ingredient in FusionBeauty's ever popular LipFusion line).

While IllumiFill works wonders instantly over skin, it also performs under your skin, by helping to stimulate the body to produce collagen to puff up and fill in lines. With continued use, skin will maintain tightness.

I happen to love the way this product is dispensed. The lightweight crème glides on skin via a metal roller. The metal roller stays amazingly cool, which is key in these hot summer temps. IllumiFill's sheer pink lotion contains light-reflecting particles that impart an opalescent glow. Because the formula is sheer and totally non-greasy, it doesn't feel like you are wearing a lot of extra makeup. I like the way the coverage is subtle and feels natural.

The great thing about this product is that it can be worn with or without makeup to firm skin and highlight. As Kim mentions in her behind the scenes video, she tosses it into her beach bag for on-the-go touch ups. I've been using it over my makeup, and it just adds a simple finishing glow. But I will definitely be wearing it sans makeup on my beach vacation.

Visit the FusionBeauty website for more information on IllumiFill and other FusionBeauty products.

IllumiFill Line Filling Luminizer with Amplifat™ ($49) is available at Sephora.

Disclosure: Skinnypurse.com received this product for review purposes.