Heidi Klum is a loyal fan of this $15 moisturizer

Heidi Klum might be the busiest women in the world!

The mom-of-four is not only an in demand supermodel at the age of 46, but she also recently filmed her 15th year of "German's Next Top Model." So how does she keep her skin looking this perfect?

“I use it on my face. It’s very light,” Klum recently told the "TODAY" show about Mario Badescu's Buttermilk Moisturizer. “When I use very rich creams, I break out in pimples. I’ve been using it for years. It doesn’t clog my pores.”

The Buttermilk Moisturizer includes 3 key ingredients: Lactic acid, which reduces the look of fine lines and discoloration, allantoin for skin-smoothing and sooth benefits and lastly, chamomile which calms the skin for a healthy-looking complexion.

SEE ALSO: Heidi Klum's says these $12 blotting papers are 'the best thing that everyone should have'

One Amazon reviewer event pointed out that Klum is a fan!

"Good enough for Heidi Klum! This is a great moisturizer for combination and oily skin. Heidi Klum swears by it! She doesn't buy $300 creams, she buys this moisturizer for about $15!"

Mario Badescu Buttermilk Moisturizer, $15.30 (Orig. $18)

And males love it too! "I am 58 years old and have been suffering from rosecea since high school started using Mario Badescu buttermilk moisturizer twice a day about 8 months ago my rosecea is just about gone," a man shared on Amazon.

"This moisturizer makes my skin so soft and hydrated without looking shiny or greasy. I’m in love," another customer reviewed.