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Why 'buffering' is the beauty routine hack you need to know for better skin

Despite dermatologists describing retinol as the be-all and end-all of skin care, retinol is a tricky beast. Some say it's the most powerful exfoliant out there, so when you hit the sweet spot, it makes for glowing, luminous skin—Heather Rogers, M.D., calls it a wonder cream. But if you accidentally overdo it or don't use retinol correctly, things quickly can devolve into a flaky mess—a common-knowledge fact that discourages some women from even trying the stuff. There is a trick, I've found, to foolproof retinol application and it's called buffering — also known as combining retinol with moisturiser to dilute it so your skin can adjust.

But first things first: If every derm loves it, why is retinol so damn intimidating? That comes down to its power. "Of all of the topical options you have for anti-aging, retinoids have been most often proven effective," says Retinol works by increasing cell turnover so that brown spots go away faster, blackheads and blocked pores clear out, sun damage is repaired, and your skin builds collagen (which keeps wrinkles and fine lines at bay). So many good things! The tricky part: The more it gets on your skin, the more it's going to kick cells into overdrive. Your face does what it's told, so if too much of the ingredient sinks in, not-ready skin will surface — and just like that, you're left with red, peeling irritation.

So, if you want to reap the benefits without the gamble that you're using it wrong, moisturiser is key. "[Retinols] can be irritating, so combining them with moisturiser is a great way to go," said Dr. King. Dr. Rogers agrees, pointing out that it both hydrates skin and acts as a buffer, diluting the retinol's impact for a gentler experience.

And while it does mean you won't get the full thrust of retinol's abilities, for people with dry or sensitive skin, that can be a good thing. The thinner or more reactive your skin, the more retinol will be absorbed, so adding a plain, basic moisturiser like CeraVe Moisturising Cream keeps your skin happy. If you want to simplify even more, Dr. King says you can moisturise first, then top with your retinol. Still, buffering — mixing the two together — is a great way to be extra sure you're not overdoing it, and Dr. Rogers says she recommends it for people who've had a bad retinol experience but want to give it another shot.

Once you're back in the saddle and your skin seems to have adjusted, Dr. Rogers suggests reversing your routine — using retinol followed by a moisturiser — to nix irritation without dulling the benefits. It's not just in your head, either: After you've been exposed to Vitamin A (the basis of retinol) for a few weeks, the number of receptors in your skin decreases, so the amount of retinol you take in also dips. That said, I'm not sure I'll ever stop buffering — it's a safety net for glowing, never-irritated skin that I can't let go. In fact, the trick makes me wake up with skin so soft, it feels like it's been under a Band-Aid for a week. I love it.