peter thomas roth

  • retinol side effects

    Retinol Side Effects And How To Deal With Them

    “I’m scared of retinol side effects. I know retinol is the best wrinkle-fighter out there, but I don’t want to deal with redness and irritation. What should I do?” I hear ya. Irritation is no fun. But leaving retinol out of your skincare routine won’t do either. Mmm… What if I told you you could […]

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  • is vitamin C safe for sensitive skin

    Can You Use A Vitamin C Serum If You Have Sensitive Skin?

    I know what you’re thinking, “Vitamin C for sensitive skin?! Isn’t that like milk for lactose-intolerance? Trouble?” It can be. Vitamin C has a (well-deserved!) rep for being stingy, irritating and harsh AF. Ouch! If you’ve got sensitive skin, it’s easy to think you’d be better off without it. Big mistake. Vitamin C is more sensitive-skin […]

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  • tetrahexyldecyl ascorbate vitamin C derivative

    Tetrahexyldecyl Ascorbate: The Best Vitamin C Derivative?

    Another one?! Like, we need a new vitamin C derivative like we need a headache. Oh, wait. Trying to decide between 20 different forms of vitamin C will give you a headache. And now Tetrahexyldecyl Ascorbate has joined the party and added to the confusion. Great… Can I have a Moment? If you can, save […]

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  • peter thomas roth retinol infusion pm night serum 01

    The Retinol Serum I Can’t Live Without

    So, you’ve been using retinol for a while, slowly building up tolerance like a skincare pro, and are now ready to go to the ultimate level: 1.5%. But how do you get there without turning your skin into a red and flaky mess? Because your skin may be used to retinol, but 1.5% is huge […]

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