# OSEA Hyaluronic Sea Serum for oily acne-prone skin

**Lovi Fit: High fit for oily acne-prone skin.**
Oily Skin Fit: High · Effectiveness: High · Safety: Excellent.

Page: https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for France.

Brand: [OSEA](https://lovi.care/skincare/fr/brands/osea)
Category: [Moisturizers and moisturizing serums](https://lovi.care/skincare/fr/best/moisturizers)

This fit is calculated for the concerns frequently associated with oily acne-prone skin: shine, breakouts, blemishes, and enlarged pores. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

A great choice for oily acne-prone skin; a few moisturizers fit it even better.

## Why this fit

- Highly suitable for your oily skin due to the presence of Gigartina Skottsbergii Extract, Macrocystis Pyrifera Extract, and Undaria Pinnatifida Extract, which offer humectant action and support skin hydration without adding excess oil.
- It offers excellent moisturizing for your oily and acne-prone skin due to the presence of sodium hyaluronate in moderate concentrations for hydrating.
- The safety profile is excellent, with no risks of irritation for your oily skin due to the absence of prohibited or harsh ingredients, and the presence of soothing ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/dry-skin): High
- [Combination skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/combination-skin): Average
- [Sensitive skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/dark-spots): Average
- [Mature skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin): High (this page)

## Key ingredients

Sodium Hyaluronate, Marine Extracts, Gigartina Skottsbergii Extract, Macrocystis Pyrifera Extract

## What the research says

- Macrocystis pyrifera ferment-containing creams decrease visible inflammation and signs of aging while enhancing barrier resilience and recovery. ([Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/))
- 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, 2025](https://pubmed.ncbi.nlm.nih.gov/39880261/))
- Hyaluronic 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, 2015](https://pubmed.ncbi.nlm.nih.gov/25877441/))
- Topical application of fucoxanthin-containing cream reduced TPA-induced epidermal hyperplasia and UVB-induced skin erythema in mice by decreasing inflammatory markers and upregulating antioxidant pathways. ([Marine Drugs, 2018](https://pubmed.ncbi.nlm.nih.gov/30308980/))
- 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, 2011](https://pubmed.ncbi.nlm.nih.gov/22052267/))
- Topical 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, 2022](https://pubmed.ncbi.nlm.nih.gov/34623507/))
- Treatment 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, 2019](https://pubmed.ncbi.nlm.nih.gov/31311529/))
- Topical 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, 2015](https://pubmed.ncbi.nlm.nih.gov/26402714/))
- Chitosan/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, 2026](https://pubmed.ncbi.nlm.nih.gov/40742752/))
- A 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, 2024](https://pubmed.ncbi.nlm.nih.gov/38922798/))
- Aqueous 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](https://pubmed.ncbi.nlm.nih.gov/33013743/))
- Extracts 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, 2010](https://pubmed.ncbi.nlm.nih.gov/20849537/))

## What reviewers say

Based 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.

- Liked: Deeply hydrating (mostly mentioned)
- Liked: Lightweight/Non-sticky (often mentioned)
- Liked: Plumps fine lines (often mentioned)
- Disliked: Expensive price point (often mentioned)
- Liked: Sensitive-skin friendly (sometimes noted)
- Disliked: Packaging issues (sometimes noted)
- Disliked: Unpleasant scent (rarely noted)

## How to apply

- Use this AM and PM routine every day to help clear your skin. Always remember to finish with SPF in the morning.
- Apply the moisturizer after your cleanser and toner, right before your SPF during the day.
- Gently press a small amount into your skin and avoid rubbing to keep pores clear.
- Apply on clean, slightly damp skin to help the product absorb better and control oil.
- Avoid the sensitive eye area and do a simple patch test before your first use.
- Video: https://storage.pora.ai/2f72f5d69f07beeafc30237f829efbff.mp4

## Questions and answers

### What makes OSEA Hyaluronic Sea Serum a great fit for oily acne-prone skin?

OSEA Hyaluronic Sea Serum is a great fit because its marine extracts and sodium hyaluronate provide lightweight hydration without adding excess oil. This moisturizing treatment also has an excellent safety profile with soothing ingredients, meaning it is unlikely to cause irritation for your oily, acne-prone skin.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/)

### Which ingredients make this serum a good fit for oily acne-prone skin?

This serum is a great fit for your oily acne-prone skin because it contains sodium hyaluronate and marine extracts like Gigartina Skottsbergii, Macrocystis Pyrifera, and Undaria Pinnatifida. These ingredients draw moisture into your skin and keep it hydrated without adding any excess oil or causing irritation.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/)

### What does Hyaluronic Acid do for oily acne-prone skin?

Hyaluronic acid helps calm oily acne-prone skin by reducing sebum production and lipid synthesis in sebaceous glands. It also supports skin barrier function and improves hydration while helping deliver treatments without causing irritation.
Sources: [The Journal of Investigative Dermatology, 2017](https://pubmed.ncbi.nlm.nih.gov/28163068/), [Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/35796638/)

### What does Marine Extract do for oily acne-prone skin?

Marine Extract helps balance oily skin and keeps pores clear without feeling heavy. It provides lightweight hydration while helping to calm redness and breakouts.

### Where does this serum go in a skincare routine for oily acne-prone skin?

This serum goes in your evening routine as a treatment step, applied after cleansing and toning and before your moisturizer. It is unlikely to cause irritation and helps hydrate your skin without adding excess oil.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/)

### 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 product. Using a hydrating treatment like this helps keep your skin comfortable and is unlikely to cause irritation.
Sources: [Cutis, 2006](https://pubmed.ncbi.nlm.nih.gov/17121065/)

### How often should I use this serum?

This serum fits well in your evening routine, where you can use it daily to keep your skin hydrated without adding excess oil. It has a safe and gentle formula that is unlikely to cause irritation.
Sources: [Health Science Reports, 2021](https://pubmed.ncbi.nlm.nih.gov/34141902/)

### Can this serum clog pores, cause breakouts or purging for oily acne-prone skin?

This serum is unlikely to clog pores or cause breakouts for oily acne-prone skin because it contains soothing marine extracts and sodium hyaluronate that hydrate without adding excess oil. It has an excellent safety profile with no harsh ingredients, meaning it will not irritate your skin.
Sources: [International Journal of Biological Macromolecules, 2025](https://pubmed.ncbi.nlm.nih.gov/39880261/), [Marine Drugs, 2018](https://pubmed.ncbi.nlm.nih.gov/30308980/)

### Can I use this serum around the eyes or on my body?

Yes, you can use this moisturizing treatment around the eyes and on your body because its gentle, soothing marine extracts and sodium hyaluronate hydrate delicate areas safely without heavy oils. It is unlikely to cause irritation on thin skin, helping to keep it smooth and comfortable.
Sources: [Surgical and Radiologic Anatomy, 2002](https://pubmed.ncbi.nlm.nih.gov/12375070/)

### Is this serum fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for oily acne-prone skin

- [Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum](https://lovi.care/skincare/fr/p/torriden/dive-in-low-molecular-hyaluronic-acid-serum/for/oily-acne-prone-skin) — Superior fit — €22.00 at Amazon
- [COSRX Hydrium Triple Hyaluronic Moisture Ampoule](https://lovi.care/skincare/fr/p/cosrx/hydrium-triple-hyaluronic-moisture-ampoule/for/oily-acne-prone-skin) — High fit — €17.99 at Amazon
- [MEDI-PEEL Peptide 9 Volume White Cica All-in-one Essence](https://lovi.care/skincare/fr/p/medi-peel/peptide-9-volume-white-cica-all-in-one-essence/for/oily-acne-prone-skin) — High fit — €27.80 at Amazon

## Pairs well with

- Cleanser: [CeraVe Foaming Facial Cleanser](https://lovi.care/skincare/fr/p/cerave/foaming-facial-cleanser/for/oily-acne-prone-skin) — Superior fit — €11.35 at Amazon
- Hydrating Toner: [Paula's Choice Pore-Reducing Toner](https://lovi.care/skincare/fr/p/paula-s-choice/skin-balancing-pore-reducing-toner/for/oily-acne-prone-skin) — Superior fit — €36.00 at Amazon
- SPF: [make p:rem UV Defense Me Blue Ray Sun Cream](https://lovi.care/skincare/fr/p/make-p-rem/uv-defense-me-blue-ray-sun-cream/for/oily-acne-prone-skin) — Superior fit — €34.30 at Amazon

## Where to buy

No store in France has a checked price for this product, so the page shows none.

## Ingredients

Water, Gigartina Skottsbergii Extract, Macrocystis Pyrifera Extract, Undaria Pinnatifida Extract, Sodium Hyaluronate, Potassium Sorbate, Citric Acid, Lonicera Caprifolium Extract, Lonicera Japonica Extract, Chlorophyll
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its 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. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- United Kingdom: https://lovi.care/skincare/uk/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- Ireland: https://lovi.care/skincare/ie/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- Germany: https://lovi.care/skincare/de/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- France: https://lovi.care/skincare/fr/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin (this page)
- Italy: https://lovi.care/skincare/it/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- Netherlands: https://lovi.care/skincare/nl/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- Spain: https://lovi.care/skincare/es/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- Canada: https://lovi.care/skincare/ca/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- Australia: https://lovi.care/skincare/au/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
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- Saudi Arabia: https://lovi.care/skincare/sa/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/osea/hyaluronic-sea-serum/for/oily-acne-prone-skin