OSEA Hyaluronic Sea Serum for mature skin
Sodium Hyaluronate
Marine Extracts
Gigartina Skottsbergii Extract
Macrocystis Pyrifera Extract
High
- HighNormal Skin Fit
- AverageEffectiveness
- ExcellentSafety
One of the best moisturizers for mature skin.
- International Journal of Biological Macromolecules, 2025
- Journal of Pharmacy & Pharmaceutical Sciences, 2015
This fit is calculated for the concerns frequently associated with mature skin: fine lines, wrinkles, and loss of firmness. 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
- Suitable for normal skin due to the humectant action of sodium hyaluronate and barrier repair from Gigartina Skottsbergii Extract, though these benefits are not directly targeted at your primary concern of wrinkles and fine lines.
- The inclusion of Macrocystis Pyrifera Extract offers general skincare benefits, supporting overall skin health for your normal skin type.
- The product is safe for your normal skin, with no risks of irritation due to the absence of harsh ingredients and the presence of soothing extracts.
How to apply
- Use your moisturizer twice a day in your AM and PM routines. Apply it daily to help smooth fine lines.
- Apply this product after your toner and serum, but before your SPF in the morning. Follow your cleanser and toner steps to keep your skin balanced.
- Gently press a small amount into your face and neck. Avoid rubbing the skin too harshly to prevent extra tension.
- Apply the moisturizer on slightly damp skin to help lock in extra moisture. Clean skin helps the product absorb much more evenly.
- Avoid the sensitive eye area during application. Do a quick patch test before your very first use to stay safe.
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
What makes OSEA Hyaluronic Sea Serum a great fit for mature skin?
OSEA Hyaluronic Sea Serum is a great fit for mature skin because sodium hyaluronate draws in moisture to keep skin soft and plump. Marine extracts like Gigartina Skottsbergii and Macrocystis Pyrifera help repair the skin barrier and support overall health without causing irritation.
Which ingredients make this serum a good fit for mature skin?
Sodium hyaluronate and Gigartina Skottsbergii extract make this serum a good fit because they draw moisture into the skin and help repair the skin barrier. Macrocystis Pyrifera Extract also supports overall skin health and helps keep skin looking smooth and resilient.
What does Hyaluronic Acid do for mature skin?
Hyaluronic acid helps mature skin by deeply boosting moisture, improving elasticity, and smoothing the appearance of fine lines and wrinkles. Regular use keeps the skin looking plump and soft while supporting overall firmness and hydration.
Journal of Drugs in Dermatology, 2011Skin Research and Technology, 2024
What does Marine Extract do for mature skin?
Marine extract helps improve mature skin by reducing roughness and fine lines while keeping your skin soft and deeply moisturized. It works to support firmer, healthier skin quality over time.
Where does this serum go in a skincare routine for mature skin?
This serum goes in the evening routine, as treatments with active ingredients are placed then for simplicity and extra safety around sun exposure. It fits into the routine after cleansing and toning, and right before your moisturizer.
Can I use it with retinol, and in what order?
You can use this moisturizing treatment alongside retinol to help keep your skin comfortable and smooth. Apply the serum first to clean skin to draw in moisture, and follow with your retinol once it is fully absorbed.
How often should I use this serum?
Use this serum in the evening as part of your routine for mature skin. Applying it daily helps keep your skin hydrated and supports overall skin health with a very low risk of irritation.
Health Science Reports, 2021Journal of Drugs in Dermatology, 2015
Can it clog pores, cause breakouts or purging for mature skin?
OSEA Hyaluronic Sea Serum is unlikely to clog pores or cause breakouts on mature skin, as it is free of heavy, pore-clogging ingredients. Its lightweight soothing extracts and hydrating sodium hyaluronate help keep skin calm and balanced without triggering irritation.
Can I use this serum around the eyes or on my body?
Yes, you can use this serum around the eyes and on your body as a moisturizing treatment. Its gentle ingredients, like sodium hyaluronate and marine extracts, help keep dry skin soft and smooth without causing irritation.
Is it fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
What the research says
κ-carrageenan tetrasaccharide treatment protects against particulate matter-induced oxidative stress, inflammation, and skin barrier dysfunction in human HaCaT keratinocytes by chelating metal ions and modulating STAT3, PI3K/AKT, and PPAR-γ pathways.
International Journal of Biological Macromolecules, 2025Hyaluronic acid extracts are safe and efficacious products for skin repair when used in tissue regeneration alone or in combination with herbal or Western medicine.
Journal of Pharmacy & Pharmaceutical Sciences, 2015Macrocystis pyrifera ferment-containing creams decrease visible inflammation and signs of aging while enhancing barrier resilience and recovery.
Journal of Cosmetic Dermatology, 2023A 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, 2024Topical 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, 2026Aqueous 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, 2020Extracts of Laminaria digitata and Vernonia sublutea inhibit cutaneous neurogenic inflammation by reducing substance P secretion in an in vitro coculture model of porcine sensory neurons and keratinocytes.
Experimental Dermatology, 2010Macrocystis pyrifera lipids inhibited cytokine-induced pro-inflammatory signaling and barrier dysfunction in human keratinocyte models.
International Journal of Molecular Sciences, 2023
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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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
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