OSEA Hyaluronic Sea Serum for oily skin
Sodium Hyaluronate
Marine Extracts
Gigartina Skottsbergii Extract
Macrocystis Pyrifera Extract
Average
- AverageOily Skin Fit
- AverageEffectiveness
- HighSafety
Works for oily skin; other moisturizers fit it better.
This fit is calculated for the concerns frequently associated with oily skin: shine, enlarged pores, blackheads, and blemishes. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.
Page built Nov 8, 2026How the Fit score works
Lovi Assistant explains
- Offers moderate hydration for your oily skin, as sodium hyaluronate provides humectant action to moisturize without adding excess oil.
- The inclusion of Gigartina Skottsbergii Extract and other seaweed extracts offers soothing benefits, though stronger seboregulating ingredients would further enhance its suitability for oily skin.
- The product is safe for your oily skin, with no harsh ingredients and the presence of soothing Gigartina Skottsbergii Extract.
How to apply
- Could be used as part of your AM or PM routine every day to keep your face fresh.
- Apply this moisturizer after cleansing and toning, but right before your SPF in the morning.
- Gently press a small amount into your skin and let it absorb fully.
- Apply on clean, slightly dry skin to help control that oily shine.
- Avoid the eye area and do a quick patch test before your first use.
People Say
★4.7Overall rating based on 2.3k+ reviewsBased on a very large amount of data, this hydrating treatment is highly effective for individuals seeking deep hydration and anti-aging benefits, particularly those with dry, sensitive, or aging skin. Users consistently report a plumper, smoother complexion and a reduction in fine lines. Some users note that the premium price point and specific packaging design may be drawbacks.
Highlights
Deeply hydrating Mostly Mentioned
- “My skin drinks this serum up.”
- “Skin feels succulent as if I had just taken a shower.”
- “Very, very hydrating.”
Lightweight/Non-sticky Often Mentioned
- “Absorbs quickly without any residue.”
- “No sticky residue.”
- “Immediate hydration without stickiness.”
Plumps fine lines Often Mentioned
- “Fine lines around my eyes have definitely softened.”
- “Visibly reduce lines & wrinkles.”
- “Noticeable difference... skin is hydrated but also like a little more plump.”
Expensive price point Often Mentioned
- “Price point too high for some budgets.”
- “Only downside is the price can be prohibitive.”
- “This is a very expensive brand.”
Sensitive-skin friendly Sometimes Noted
- “Doesn't breakout my sensitive skin.”
- “Does not irritate my skin while it works its magic.”
Packaging issues Sometimes Noted
- “I don't LOVE the pump though.”
- “Packaging could be more travel-friendly.”
- “Doesn't work that great but will make due.”
Unpleasant scent Rarely Noted
- “After 3 weeks of use it started to smell horrible.”
- “Doesn't smell great but doesn't linger.”
- “Not an amazing scent.”
Sources: lovi.care, oseamalibu.com, sephora.com, ulta.com, influenster.com, vivanourish.com, and more
Questions and answers
How well does OSEA Hyaluronic Sea Serum work for oily skin?
OSEA Hyaluronic Sea Serum offers moderate hydration for oily skin, as sodium hyaluronate moisturizes without adding excess oil, while marine extracts provide soothing benefits. A product of this type needs oil-regulating ingredients like Niacinamide or oil-controlling agents, alongside lightweight moisture, to fully meet the needs of oily skin.
International Journal of Biological Macromolecules, 2025Marine Drugs, 2024
Which ingredients make this serum a good fit for oily skin?
Sodium hyaluronate makes this serum a good fit for oily skin because it moisturizes without adding excess oil, while seaweed extracts help calm the skin. To work even better for oily skin, a product of this type needs ingredients like Niacinamide to help control oil and minimize pores.
International Journal of Biological Macromolecules, 2025Marine Drugs, 2024
What does Hyaluronic Acid do for oily skin?
Hyaluronic acid helps oily skin by reducing extra oil and sebum production without causing irritation. Clinical studies show it successfully balances oil levels while keeping the skin comfortable.
What does Marine Extract do for oily skin?
Marine extract helps balance and hydrate oily skin without feeling heavy or greasy. It may also improve overall skin texture and smoothness while keeping excess shine under control.
Where does it go in a skincare routine for oily skin?
This treatment goes in your evening routine, as treatments with active ingredients are used then for simplicity and extra safety around sun exposure. It provides moderate hydration for oily skin without adding excess oil, though an oily skin routine also needs stronger oil-balancing ingredients.
Can I use this serum with retinol, and in what order?
You can use this serum with retinol by applying the serum first to hydrate your skin, followed by your retinol treatment. A product of this type needs stronger oil-balancing ingredients to be a great fit for oily skin.
How often should I use it?
You can use this treatment in your evening routine. Oily skin benefits from stronger oil-controlling ingredients to work even better with this product type.
Can this serum clog pores, cause breakouts or purging for oily skin?
This serum is unlikely to clog pores or cause breakouts on oily skin, as it provides hydration without adding excess oil. However, because it is only an average fit for oily skin, a product of this type needs stronger oil-balancing ingredients to better manage shine and prevent breakouts.
International Journal of Biological Macromolecules, 2025Marine Drugs, 2024
Can I use it around the eyes or on my body?
This product is safe to use around the eyes and on the body, as it contains gentle seaweed extracts and sodium hyaluronate with a very good safety profile. It helps keep these areas calm and hydrated without adding excess oil, though oily skin on the body benefits most from added ingredients that help control shine.
Is this serum fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
What the research says
Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.
Journal of Drugs in Dermatology, 2011Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.
Clinical Oral Investigations, 2022Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.
BMC Oral Health, 2019Topical sunscreen formulations containing UV filters, red algae extract, Ginkgo biloba, and vitamins protected hairless mice from UV-induced erythema, reduced transepidermal water loss, and significantly decreased the expression of p53 and caspase-3 compared to untreated controls.
Journal of Photochemistry and Photobiology. B, Biology, 2015Chitosan/polyvinyl alcohol nanofibrous dressings containing 3% Corallina officinalis extract exhibited bead-free morphology, enhanced mechanical strength, strong antibacterial activity against Escherichia coli and Staphylococcus aureus, and excellent biocompatibility for skin cell survival and proliferation.
Journal of Biomaterials Science. Polymer Edition, 2026A skincare regimen containing Macrocystis pyrifera ferment consisting of a cleansing foam, a serum, and a moisturizer decreases the visible effects of inflammation and aging while promoting healing and improving patient satisfaction.
Journal of Cosmetic Dermatology, 2024Macrocystis pyrifera ferment-containing creams decrease visible inflammation and signs of aging while enhancing barrier resilience and recovery.
Journal of Cosmetic Dermatology, 2023Aqueous extracts from Macrocystis pyrifera and Durvillaea antarctica exhibited antiviral activity against acyclovir-sensitive and acyclovir-resistant HSV-1 and HSV-2, and topical formulations significantly reduced the severity and duration of HSV-1 skin lesions in an animal model compared to mock treatment and acyclovir.
Frontiers in Microbiology, 2020
Why other moisturizers fit oily skin better
A panthenol-enriched mask improved skin hydration, regulated sebum, and reduced redness and TEWL across dry sensitive, oily sensitive, and oily acne skin subgroups with excellent tolerance and no adverse reactions.
Journal of Cosmetic Dermatology, 2024A peel-off facial mask containing myoinositol and trehalose-loaded liposomes improved adult female acne by decreasing lesion counts, sebum production, GAGS scores, and local androgen levels while increasing beclin-1 levels.
Journal of Cosmetic Dermatology, 2017
Ingredients
Water, Gigartina Skottsbergii Extract, Macrocystis Pyrifera Extract, Undaria Pinnatifida Extract, Sodium Hyaluronate, Potassium Sorbate, Citric Acid, Lonicera Caprifolium Extract, Lonicera Japonica Extract, Chlorophyll
Behind this fit score
Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
How does it fit your skin?
Scan your face, then any product: Lovi shows how well it fits you and what fits even better.