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Isn’t there something so thrilling about finding a truly stellar and game-changing product? It’s a huge joy, and you want to tell everyone how great it is and use it all the time and bask in its glory and congratulate yourself for choosing it and see other people experience it, too. It’s so satisfying to see good results that make a purchase truly worth it.

That’s how I feel about Revision Skincare’s YouthFull Lip Replenisher, which I bought a few months ago while on a mission to find something that would care for and address my aging lips and is on sale today for 20% off. My lips have gotten just as much sun damage as the rest of my face over the last nearly-five decades, and it was starting to show in fine lines. I’m not overly bothered by signs of aging, but I do want to take care of my face, and of course I can’t just slap some random retinol cream on my lips like I can on my crow’s feet. Lip skin is wildly delicate.

I figured one of the most promising lip-safe active ingredients would be peptides, given that certain peptides can have skin-restoring abilities and help address things like loss of firmness, dullness and fine lines, and others are solid antioxidants. Although they don’t produce quick miracles — no skin care does — peptides can be effective, and some are gentle enough to be included in lip products. I tried a few of them, including Hailey Bieber’s peptide lip gloss (what can I say? she has good skin!), but nothing was really doing it for me.

Then I took one last stab at it when I spotted Revision’s peptide treatment. Designed to target visible signs of lip aging, it not only has several peptides including palmitoyl tripeptide-1 and palmitoyl tripeptide-38, but also other research-backed ingredients like vitamins E and C and green tea that can work well in tandem with peptides, plus very solid moisturizers like shea butter. I put it on overnight — more on that choice below — and let me tell you, I could actually tell a difference the very next morning.

My lips hadn’t been in terrible shape, but they definitely seemed smoother than they’d been in years. They weren’t puckery. They didn’t look wrinkly. And they certainly felt supremely healthy. I kept going with overnight use, and within days felt like this it was making a real difference. I was honestly floored when I woke up each morning, and kept being reminded of it during the day when they just felt so freshly smooth all the time. And given how little of it I have to squeeze out to give my lips a solid coat, I feel like this one tube is going to last for an almost comically long time (a relief given that $40 is way more than I typically spend on a lip balm, which is also a good reason to snatch it up while it’s on sale).

I will note that when I first put this on, I immediately knew it wasn’t going to be a product I’d wear much during the day, despite Revisions’s guidance of applying it three times daily. It’s pretty thick and sticky (if you are constantly pulling your hair out of your lip gloss, you know the struggle). But as one reviewer noted, this is actually the product’s superpower, because it absolutely does not budge, even if you wear it overnight. “Although some reviews complain about the tackiness of the balm, that’s actually what is so great about this product!” wrote a Dermstore customer named Lizzie. “It sticks to lips better than any other balm I’ve tried.”

I can attest to this. Each morning when I wake up, it’s still there as if I just applied it. I sleep on my side, but it doesn’t melt off or get on my pillow. The fact that it clings so hard and lasts so long gives me some assurance that all those little peptides really are hard at work while I sleep, safely ensconced on my lips in a very stay-put formula.

Although some reviewers do enjoy it wearing this formula as a daytime gloss, many others are using it overnight only, too, and say it makes their lipstick easier to apply the next day. Some aren’t so concerned with fine lines, and simply use it for dry, cracked lips in winter or desert climates (and they say it’s hugely effective for that). Read some promising thoughts from verified Dermstore purchasers and Amazon reviewers below: