Buying new skin care products can be a challenging task. How do you know which reviews and recommendations to trust? There’s literally so much information on the Internet these days. And with beauty products costing upward of $100, it can be a real gamble to purchase something when you’re unsure of the end results. That’s where our favorite dermatologist and esthetician pros come in handy, as they know what’s up. From Dr. Dennis Gross to celebrity esthetician Renée Rouleau, we’ve rounded up seven skin care lines developed by top skin care pros that deliver legit results. You don’t even need to think twice when stocking up on these awesome lotions, potions and creams.