I first tried the iconic Crème de la Mer when I was a 22-year-old beauty intern, blessed with the sort of nearly perfect skin that is, frankly, wasted on 22-year-olds. Its proprietary Miracle Broth—a blend of fermented sea kelp, minerals, and what I can only assume is a little sorcery—was far more than my youthful complexion knew what to do with. So I promptly handed the jar over to my mom, who seemed much better equipped to appreciate the powers of such a luxurious face cream.

Fast-forward nearly two decades, two kids, and considerably more dryness, fine lines, and dark spots later, and suddenly words like firming and plumping have my full attention. So when La Mer’s newest $450 moisturizer, The Rejuvenating Night Cream—a 2026 Allure Best of Beauty Award winner—landed on my desk, the timing felt almost suspiciously perfect.

La Mer The Rejuvenating Night Cream

Despite the French name, La Mer is actually an American brand, founded by aerospace physicist Max Huber, who began experimenting with skin care after suffering burns in a lab accident. According to the brand, it took him 12 years and 6,000 attempts to develop the fermentation process behind its now-famous Miracle Broth, which is still found in each of their products today—including the night cream now sitting on my vanity. This time around, I’m more than ready for my rendezvous with La Mer. Here’s what happened when I put The Rejuvenating Night Cream to the test.

My Skin Concerns, at a Glance

I have dry, sensitive skin, and it’s precisely this time of year—when temperatures are constantly bouncing around—that it tends to freak out the most. First comes the tightness and dullness, then the flaky patches around my cheeks. As I close in on 40, I’m also noticing a little more sagging around my jawline, wrinkles around my eyes, some hollowness underneath them, and ongoing redness compounded by melasma.

Despite all this, I’m also terribly lazy about my nighttime routine. (See above: two kids.) The fewer bottles I have to open before collapsing into bed, the better. My dream night cream, therefore, has a fairly demanding job description: I want deep, nourishing hydration that lasts until morning, but I’d also love something that makes my skin look plumper, smoother, and more bouncy. If one jar can tackle several of those concerns at once, even better.

My First Impressions

At first, The Rejuvenating Night Cream seems intimidatingly rich. It looks buttery and thick in the jar—you could hold the container upside down without it budging. But the moment I scoop some out and work it into my skin, it melts surprisingly easily. That silky slip matters because you don’t need much; a little pea-size amount covers my entire face.

Like the original Crème de la Mer, it has a noticeable but subtle scent. That’s worth flagging for anyone who is sensitive to fragrance: In addition to perfume, it contains eucalyptus oil and several fragrance components, including limonene and linalool. So although the formula contains plenty of barrier-friendly ingredients, someone with “eczema, rosacea, reactive skin, or a known fragrance sensitivity may be more likely to experience irritation,” says Jenna Queller, MD, a board-certified dermatologist based in Boca Raton, Florida, who’s not affiliated with the brand. My own reactive skin tolerated it without an issue, but that doesn’t mean everyone’s will.

What’s Inside La Mer’s The Rejuvenating Night Cream?

So, what exactly merits this hefty price tag? The headline ingredient is MRA-3, which La Mer calls its “marine retinol alternative.” The brand says that this proprietary technology is designed to “enhance density, complement natural support polymers and speed cell renewal” without the irritation associated with retinol. (“Skin density refers to the structural integrity of skin, mainly composed of collagen and elastic fibers,” explains Chang Son, MD, a board-certified dermatologist based in New Jersey, who’s not affiliated with the brand. If an ingredient can stimulate new collagen production, he says, it could in turn help improve skin density.)

Here's the catch: La Mer doesn’t disclose exactly what makes up MRA-3, so you can’t look at the ingredient list and neatly point to one ingredient as the marine retinol alternative. Without knowing exactly what’s in MRA-3, “it’s likely more accurate to think of it as being intended to provide some of the cosmetic benefits we associate with retinol—smoother, firmer, more youthful-looking skin—rather than assuming that it works through the same biological mechanisms as a retinoid,” says Dr. Queller. That sets it apart from other retinol alternatives like bakuchiol.

Kelly Dobos, a cosmetic chemist based in Cincinnati, did some digging and points to Crithmum maritimum extract and Crithmum maritimum callus culture filtrate—both derived from coastal plants—as two marine ingredients of particular interest in the formula. “There are studies that show potential benefits for collagen and skin renewal, but those experiments were conducted on cells or reconstructed skin rather than people,” says Dobos. To be fair, La Mer does have some numbers to back up its claims. In a study of 31 people, the brand found that the finished Rejuvenating Night Cream improved eight signs of aging, including fine lines, plumpness, firmness, smoothness, texture, and wrinkles. However, the testing was small and done on the cream as a whole, so there’s no way to tease out how much of those results came from MRA-3 versus everything else packed into the formula.

Then there’s La Mer’s other big signature: Miracle Broth, the proprietary blend found throughout the brand’s lineup. It starts with sustainably harvested Giant Sea Kelp, which is fermented with other ingredients for about four months to create a broth the brand says helps soothe irritation, support the skin barrier, and encourage a healthier, more resilient complexion. Here’s the cool part: A few drops from the previous batch are added to every new one, creating a sort of continuous lineage of Miracle Broth.

Not everything in the jar is as mysterious as MRA-3 and Miracle Broth, though. In fact, some of the more familiar ingredients may actually be responsible for a lot of the instant gratification I noticed. Shea butter, glycerin, dimethicone, jojoba oil, mango butter, and sodium hyaluronate form a seriously moisturizing lineup. “Humectants such as glycerin attract and retain water, while the emollients and occlusives smooth skin and help curb moisture loss,” says Dobos. That could also explain why my fine lines looked noticeably blurred right away. But the immediate effect “is likely due to the hydrating elements of the formula rather than longer-term changes in the skin,” says Dr. Son.

Other ingredients are geared toward longer-term changes. There are four peptides: palmitoyl tripeptide-1, palmitoyl tetrapeptide-7, palmitoyl hexapeptide-12, and acetyl hexapeptide-8. “The first two make up Matrixyl 3000, a popular peptide duo designed to support collagen and, over time, help skin look firmer,” says Dr. Son. These peptides act as signaling molecules, and “different peptides can target different pathways associated with collagen, inflammation, elasticity, and expression lines,” says Dobos. Combining several of them is essentially a multitasking approach to addressing aging skin.

There’s also magnesium ascorbyl phosphate, which is “a vitamin C derivative that’s generally more stable and potentially less irritating than pure L-ascorbic acid,” says Dr. Queller. In other words, you can still get some of vitamin C’s glow-boosting perks—Dr. Son points specifically to its “brightening potential”—in a form that may be more tolerable on sensitive skin. For my dry, easily annoyed complexion, I’ll happily take the gentler route in something I’m slathering on every night.

Put it all together, and it becomes a little easier to see where the price tag comes from: The formula essentially combines the jobs of a vitamin C serum, peptide serum, barrier cream, and retinol alternative in one very fancy jar.

How It Fits Into My Routine

Despite “night” being right there in the name, “there isn’t anything inherently ‘night-specific’ about most of the ingredients in this cream,” says Dr. Queller. That’s worth noting given the retinoid comparison: True retinol is generally best used at night because it can make skin sensitive to the sun, but because MRA-3 is positioned as a retinol alternative rather than retinol itself, La Mer doesn’t indicate that it can cause the same photosensitivity.

Instead, its rich, emollient texture is what makes the cream particularly well suited to overnight use, when you don’t have to worry about layering makeup or sunscreen on top.

Naturally, in the name of journalism, I had to put that theory to the test and wear it during the day. My skin looked wonderfully dewy, but my foundation pilled on top. The cream left too much slip, so my base didn't sit the way I wanted, and back to my nightstand it went.

My already minimalist nighttime routine has actually gotten further pared down since I started testing it. I previously used toner, serum, and moisturizer, but this cream feels so plush and hydrating that most nights I've been skipping serum altogether. After toner, I massage a small amount over my face and neck. And because it's so spreadable, a little really does go a long way. After three weeks of nightly use, I've barely made a dent in my two-ounce jar, so by girl-math rules, the cost per use is already working in my favor.

My Final Thoughts

The most definitive change is also the one I hoped for most: Nary a dry patch is in sight. My skin doesn't feel tight and parched when I wake up, and it has regained some of the bounce I’ve lost over the past few years. The fine lines around my eyes and upper cheeks also look a little more filled in—not erased like a bona fide filler would, but softened in the way they tend to when my skin is exceptionally well hydrated.

Would I have fully appreciated this jar with my fresh-out-of-college, baby-soft skin? Absolutely not. These days, though, this cream feels much better suited to my needs. Sorry, Mom, this time you’re on your own.

Meet the experts

• Chang Son, MD, a board-certified dermatologist based in New Jersey
• Kelly Dobos, a cosmetic chemist based in Cincinnati
• Jenna Queller, MD, a board-certified dermatologist and founder of DermWorks based in Boca Raton, Florida

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