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Using the best OSEA products is like taking a trip to Malibu’s coast without ever leaving your bathroom. Pronounced oh-SEE-uh, the brand’s name stands for Ocean, Sun, Earth, and Atmosphere, a nod to its holistic approach to wellness, nature, and skin care. OSEA’s story actually starts long before it became a skin-care line, when the founder’s grandmother recovered from an injury through daily sea swims and seaweed treatments. The family became convinced that the ocean wasn’t just a way to relax—it was restorative. That idea became the backbone of OSEA, with undaria algae (a mineral-rich seaweed rich in antioxidants, vitamins, and firming benefits) appearing in so many of its formulations.
The marine-based ingredients are the reason why their body oil became a viral bestseller, why their exfoliators leave skin insanely smooth, and why the body butter gives skin that just-got-back-from-the-beach glow—no matter where you live. Ahead, we rounded up our favorite OSEA face and body products that leave skin feeling soft, radiant, and a little more California cool.
Our Top OSEA Picks
- Sea the Glow: Undaria Algae Body Oil, $52
- Dive Into Deep Moisture: Undaria Algae Body Butter, $54
- Coast is Clear: Dream Night Cream, $68
- Go with the Flow: Dream Night Serum, $88
- Let’s Dew This: Hyaluronic Body Serum, $48
- A Shore Thing: Undaria Algae Body Wash, $32
- Roll with the Tide: Ocean Eyes, $58
- Smooth Sailing: Seaglow Resurfacing Scrub, $58
- Make a Splash: Hyaluronic Lip Booster Oil, $28
Frequently Asked QuestionsLargeChevron
- How we test and review products
- Our staff and testers
Sea the Glow: Undaria Algae Body Oil
Osea
Undaria Algae Body Oil
Osea
Amazon
Nordstrom
Why it's worth it: If you want an all-over glow year-round (even if your skin is currently hiding under a chunky sweater—you still know it’s there), this 2025 Best of Beauty Award winner is the body oil to beat. Undaria Algae Body Oil’s star ingredient, undaria seaweed, is packed with antioxidants and minerals that help visibly firm and smooth skin over time. It’s blended with moisture-locking sunflower seed oil, white lupin flower extract to improve elasticity, and passionfruit oil for a hit of lightweight, never-greasy nourishment. The silky texture melts fast, leaving behind a hydrated, subtle sheen and a fresh, citrusy scent. One pump really does go a long way, thanks to its concentrated formula.
Allure contributing commerce writer Jailynn Taylor applying the OSEA Undaria Algae Body Oil
Jailynn Tayler
Allure contributing commerce editor Deanna Pai applying the OSEA Undaria Algae Body Oil
Deanna Pai
Tester feedback from contributor Jailynn Taylor
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“I’m officially on my third bottle of OSEA’s Undaria Algae Body Oil, and yes, it’s that good. What I love most is the shine it offers from head to toe. It’s not greasy or glittery, just this subtle, healthy, natural-looking glow. The scent is super light and fresh, so it never competes with my perfume. And it absorbs fast, which is a nonnegotiable for me. I use it post-shower, and my skin feels baby soft and stays hydrated all day.” —Jailynn Taylor, contributor
Tester feedback from contributing commerce editor Deanna Pai
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“I'm not a diehard body-oil user, but when I'm pregnant, it becomes a must-have. I've been slathering this stuff on my belly, and it's just as good as everyone says. It's rich and viscous in a satisfying way—unlike, say, a dry oil—but sinks in so fast that it has yet to stain any of my clothes. And the scent is a little fruity, a little herbal, but all-around uplifting, making it perfect for slathering on before I start my day.” —Deanna Pai, contributing commerce editor
More to know
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- Key ingredients: sunflower seed oil, undaria seaweed, lupin flower, passionfruit oil
- Who it's for: people with dry skin
- Fragrance-free: no
Dive Into Deep Moisture: Undaria Algae Body Butter
Osea
Undaria Algae Body Butter
Osea
Amazon
Nordstrom
Allure creative producer Sydney Malone applying the OSEA Undaria Algae Body Butter
Sydney Malone
Why it’s worth it: If this jar looks familiar, it’s because we recently crowned it our favorite body butter of all time. Undaria Algae Body Butter is the richer, whipped version of the brand’s fan-favorite body oil, delivering long-lasting moisture without feeling greasy or heavy. The formula includes nourishing “ingredients like shea butter and ceramides, which help repair the skin’s moisture barrier,” Michael H. Gold, MD, a board-certified dermatologist in Nashville, previously told Allure. If you’re dealing with signs of aging, the blend of undaria seaweed extract and caffeine helps visibly firm and refine texture over time, while oat extract and aloe step in to calm dryness and irritation (so, a win for sensitive skin, too). But no matter where you fall on the skin-type spectrum, the hydration payoff is the same: plush, moisturized skin that stays soft for up to 72 hours.
Tester feedback from creative producer Sydney Malone
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“This body butter smells absolutely divine—it's got a mild enough scent as to not overwhelm, but rather to make you feel luxurious and moisturized. I appreciate how thick this cream is because with just one application, I feel like I wouldn't need to use body lotion again until tomorrow! Perfect for dry or winter weather, especially for us dry skin girlies.” —Sydney Malone, creative producer
More to know
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- Key ingredients: undaria seaweed, shea butter, ceramides,
- Who it's for: people with dry skin or signs of aging (crepiness, loss of firmness)
- Fragrance-free: no
Coast is Clear: Dream Night Cream
Osea
Dream Night Cream
Osea
Amazon
Nordstrom
Allure senior art director Ingrid Fowler applying the OSEA Dream Night Cream
Ingrid Fowler
Why it's worth it: Retinol may be the gold standard in skin-care products for smoothing fine lines, clearing up acne, and fading dark spots, but not everyone’s skin can handle the side effects. So it tracks that a brand built on sea-healing and skin wellness would dream up a night cream that delivers similar results without the sting. The Dream Night Cream pairs an algae-derived bio-retinol alternative (think: same line-smoothing perks as traditional retinol, but gentler) with rich, cushiony hydrators like shea butter, squalane, macadamia seed oil, and safflower seed oil to deeply moisturize while you sleep. A blend of calming botanicals (oat kernel flour, lavender, rosemary, and rice bran helps soothe stressed-out skin, while plant-based peptides and blue-green algae extract result in a more even texture by morning.
Tester feedback from senior art director Ingrid Fowler
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“This silky night cream is just thick enough to really lock in moisture, but not too thick. (You're not left with the heavy feeling of too much product.) It absorbs nicely and leaves my skin feeling super moisturized into the next day!” —Ingrid Fowler, senior art director
More to know
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- Key ingredients: bio-retinol, king of bitters, lavender oil, shea butter
- Who it's for: people with mature or dry skin
- Fragrance-free: no
Go With the Flow: Dream Night Serum
Osea
Dream Night Serum
Osea
Amazon
Nordstrom
Allure contributing commerce writer Christa Joanna Lee applying the OSEA Dream Night Serum
Christa Joanna Lee
Why it's worth it: If you love the benefits of retinol but prefer a silky serum over a richer cream, the Dream Night Serum is your speed (and yes, you can layer it under the Dream Night Cream if you’re feeling extra). It uses the same bio-retinol alternative as the moisturizer, plus firming peptides to help smooth fine lines and improve skin texture while you sleep. In addition to being one of our favorite retinol-style treatments, it also doubles as a hyaluronic acid serum thanks to multiple forms of HA that pull in moisture, so skin looks more bouncy by the a.m. A blend of cucumber water, watermelon and apple extracts, plus red and green algae, helps hydrate, while lavender adds a soft, calming touch to your skin-care routine.
Tester feedback from contributing commerce writer Christa Joanna Lee
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“I’m a little obsessed with lavender—I use a lavender pillow spray every night—so this serum’s scent feels instantly comforting. The texture is slightly thicker than most serums I’ve tried (a plus, since it doesn’t slip right out of the dropper), and it sinks in within seconds. Even with bio-retinol in the mix—the brand doesn’t disclose the percentage—I had zero irritation on my sensitive skin.” —Christa Joanna Lee, contributing commerce writer
More to know
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- Key ingredients: hyaluronic acid, bio-retinol (extracted from green microalgae), red seaweed, peptides
- Who it's for: people with loss of skin firmness and elasticity
- Fragrance-free: no
Let’s Dew This: Hyaluronic Body Serum
Osea
Hyaluronic Body Serum
Osea
Amazon
Nordstrom
Allure senior commerce editor Shanna Shipin applying the OSEA Hyaluronic Body Serum on her arm
Shanna Shipin
Why it's worth it: We don’t know exactly how a brand measures skin hydration increasing by 161%, but in Allure editor speak, it means your skin goes from “desert dry” to “dewy dumpling” pretty fast. That’s thanks to the five molecular weights of hyaluronic acid inside this 2024 Best of Beauty Award winner, which hydrate on multiple levels instead of just sitting on top of skin like a basic lotion. It’s also National Eczema Association-accepted, making it a high-performance body treatment that’s gentle enough for sensitive, reactive skin. Niacinamide helps soothe redness and strengthen the skin barrier, green microalgae brings antioxidant support, vegan peptides help improve firmness and texture over time, and aloe adds lightweight, calming hydration.
Tester feedback from senior commerce director Shanna Shipin
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“Whenever possible, I moisturize my body like my face: With a hyaluronic acid serum—and this one from OSEA is my all-time favorite. I'll admit that part of what I love is the packaging. The serene green, the fogged glass, and the pump top that actually works. (By the way, it lets just enough serum out of the bottle without getting clogged—a feat for a thin formula like this!). This serum is so hydrating that you could just as well leave it without a more occlusive buttery layer, especially when it's irritatingly hot or humid. Still, I do like to follow up with an actual lotion afterward. You know what works beautifully over this? The brand's body butter; why not just go full-out seaweed wrap? Back to the formula: There are peptides to plump the skin, along with the brand's signature blue-green algae, which is touted as a kind of nourishing superfood. And for fellow sensitive-skin people out there, the serum is fragrance-free! I was able to use it on my non-preggo, preggo, and postpartum body without irritating my easily inflamed skin.” —Shanna Shipin, senior commerce director
More to know
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- Key ingredients: hyaluronic acid, niacinamide, green microalgae, vegan peptides, aloe
- Who it's for: people with dry, sensitive skin
- Fragrance-free: yes
A Shore Thing: Undaria Algae Body Wash
Osea
Undaria Algae Body Wash
Osea
Amazon
Nordstrom
Allure commerce editor Sarah Han using the OSEA Undaria Algae Body Wash
Sarah Han
Why it's worth it: If we could have a whole ocean of this algae body wash, we’d happily swim in it, but for now, we’ll settle for lathering it on in the shower. Undaria Algae Body Wash uses the brand's signature antioxidant-rich seaweed from the beloved body oil, turning it into a silky gel cleanser that hydrates as it cleans. The formula uses gentle, plant- and coconut-based surfactants (read: no stripping suds), plus essential oils (including jojoba, grapefruit, and avocado) to leave skin soft and moisture locked in long after you’ve towel-dried. (P.S. For the purposes of an easier, mess-free demo, we used our hands.)
Tester feedback from commerce editor Sarah Han
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“I won't lie: The scent is the selling point for me. The grapefruit and lime notes feel like a gentle wake-up call and boost my mood every time I use it. The formula itself is so silky and has the perfect amount of slip, and of course, it's filled with moisturizing powerhouses, like the brand's signature undaria seaweed, aloe, glycerin, and jojoba oil that leave my skin feeling as soft as a baby's bum. Once I'm out of the shower and dried off, I follow up with the Hyaluronic Body Serum because it's one of the few nonsticky body-care products my impatient self tolerates. It's the perfect recipe for long-lasting hydration.” —Sarah Han, commerce editor
More to know
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- Key ingredients: undaria seaweed, aloe, glycerin, jojoba oil
- Who it's for: everyone, especially if you have dry, rough skin
- Fragrance-free: no
Roll with the Tide: Ocean Eyes Serum
Osea
Ocean Eyes
Osea
Amazon
Nordstrom
Shipin applying the OSEA Ocean Eyes Serum
Shanna Shipin
Why it's worth it: If the Billie Eilish song starts playing in your head every time you reach for this serum, consider it part of the experience. A 2022 Best of Beauty Award winner, Ocean Eyes is a cooling rollerball gel that instantly wakes up tired undereyes. The formula pairs two types of seaweed (undaria and red algae) with caffeine to help depuff and firm, while hyaluronic acid draws in moisture for a smoother, plumper look. Peptides and quinoa seed extract target fine lines and dark circles over time, and albizia bark extract helps visibly counter any signs you stayed up late doom-scrolling.
Tester feedback from Shipin
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“I am convinced that every eye treatment should include a cooling rollerball, thanks to this product. I love that this is a truly weightless formula that still packs a punch and works magic to make my undereyes instantly appear bouncier. I chalk it up to the combination of peptides and the metal applicator, which work together to tighten and plump up the skin. It's such fun to use (and who isn't up for injecting some levity into a hard-working skin-care routine?!) and very travel-friendly. Hey, it's nice that you can count on bouncy undereyes even when you're running on nothing but jet lag fumes!” —Shanna Shipin, senior commerce director
More to know
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- Key ingredients: undaria seaweed, red algae, hyaluronic acid, caffeine, peptides
- Who it's for: people with crow’s feet, undereye puffiness, or dark circles
- Fragrance-free: yes
Smooth Sailing: Seaglow Resurfacing Scrub
Osea
Seaglow Resurfacing Scrub
Osea
Amazon
Nordstrom
Fowler applying the OSEA Seaglow Resurfacing Scrub
Ingrid Fowler
Why it's worth it: You know how your feet somehow feel baby-smooth after a day at the beach, like the sand secretly gave you a free exfoliation? The Seaglow Resurfacing Scrub is that same idea—just far more refined, and meant for your face. The formula uses a blend of physical exfoliants (volcanic sand, finely milled rice powder, bentonite, and sea silt) to buff away dullness without feeling scratchy, while glycerin and cloudberry seed oil keep skin cushioned and soft. A blend of hibiscus flower extract, turmeric, and spirulina adds antioxidant support, caffeine helps energize the skin, and fruit enzymes from kiwi and grapefruit give an extra glow boost. Use this a couple of times a week for smoother, brighter skin (without getting sunburnt and sand in awkward places).
Tester feedback from Fowler
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“This scrub makes my skin feel super smooth. It exfoliates very well but is gentle enough that my skin doesn't feel stripped. I love that it doesn't dissolve too quickly, so you can really get a good scrub. Sometimes scrubs can leave a filmy feeling after use, and this doesn't at all — it lathers nicely, so my face feels very fresh and cleansed after use.” —Fowler, senior art director
More to know
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- Key ingredients: rice, clay powder, bentonite, volcanic sand, sea silt algae, cloudberry seed oil
- Who it's for: people with rough, dull, and uneven skin
- Fragrance-free: yes
Make a Splash: Hyaluronic Lip Booster Oil
Osea
Hyaluronic Lip Booster Oil
Osea
Nordstrom
Ulta Beauty
Shipin applying the OSEA Hyaluronic Lip Booster Oil
Shanna Shipin
Why it’s worth it: Why is it that the second temperatures dip below 70, all the moisture seems to vanish from our lips? The brand’s Hyaluronic Lip Booster Oil is part oil, part treatment, and all hydration. This cushiony formula uses sodium hyaluronate (a form of hyaluronic acid) to pull in moisture and plump the lips, while castor seed and meadowfoam oils create a smooth, glossy shine. Rice bran and rosemary extracts deliver antioxidant protection, while sunflower and lupin seed oils target dryness from another angle—deeply nourishing to leave lips soft, conditioned, and visibly healthier.
Tester feedback from Shipin
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"I know this may look, and be billed as, a kind of lip gloss—but it is so much more than that. It's this lovely balm-like product that actually enrobes your lips in lasting nourishment and hydration. Honestly, I'm talking hours of a supple pout that smells faintly citrus-y. It doesn't have a tint or anything, but because the Booster is so nourishing, it brings out your lips' natural color. You can't talk about this product (or any OSEA product, really) without also speaking to the packaging. The formula is a lovely honey color and looks so luxe in its frosted glass case, and the doe-foot applicator is so special. I've tried many applicators in my time as a beauty editor, and this is a high-quality one that is firm, plush, and draws just enough of the ‘booster’ out of the bottle and onto your lips—no potential for the product to flick onto your shirt." — Shipin, senior commerce director
More to know
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- Key ingredients: sea fern, hyaluronic acid, castor seed oil, meadowfoam seed oil
- Who it's for: people with dry lips
- Fragrance-free: no
Frequently Asked Questions
How we test and review products
When Allure tests a product, our editors look at it from every angle in an effort to best serve you. We review ingredients, scrutinize brand claims, and, when necessary, examine peer-reviewed scientific and medical studies. In addition to testing each and every product that's included in each and every review, we rely on experts who shape their fields, including dermatology, cosmetic chemistry, and medicine, to help us vet the ingredients and formulas.
For our list of the best OSEA products, we considered each product's performance across five primary categories: product ingredients and efficacy, packaging, fragrance, texture, and product wear. Every product was determined to have excelled in each category by our editorial team of in-house writers and editors, as well as contributors, along with special consideration from dermatologists. To learn more about our reporting and testing processes, read our complete reviews process and methodology page.
Our staff and testers
A beauty product is a personal purchase. You might be searching for a face cream to address persistent dryness or a new nail product to add to your Sunday self-care routine; you may simply be browsing around for the latest launches to hit the hair market. No matter what you seek or your individual needs and concerns, Allure wants to ensure that you love anything we recommend in our stories. We believe that having a diverse team of writers and editors—in addition to the wide range of outside testers and industry experts we regularly call upon—is essential to reaching that goal.
After all, can we really say a skin-care product is the "best" for people over 50 if the only testers we've solicited opinions from are folks who have yet to hit 30? Can we honestly deem a high-end diffuser worthy of your hard-earned cash if it's never been tested on curls? We're proud that our staff spans a wide range of ages, skin tones, hair textures, genders, and backgrounds, which means that we are able to fairly assess any beauty product that comes into the beauty closet.