# OSEA Hyaluronic Sea Serum for sensitive skin

**Lovi Fit: High fit for sensitive skin.**
Normal Skin Fit: High · Effectiveness: Average · Safety: High.

Page: https://lovi.care/skincare/p/osea/hyaluronic-sea-serum/for/sensitive-skin

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

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

This fit is calculated for the concerns frequently associated with sensitive skin: redness, stinging, and reactions to new products. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

One of the best moisturizers for sensitive skin.

## Why this fit

- Offers excellent hydration for your normal skin due to the presence of sodium hyaluronate, while Lonicera Caprifolium Extract and Lonicera Japonica Extract provide mild anti-inflammatory effects to soothe redness and irritation.
- Seaweed extracts offer antioxidant activity, further supporting your skin's overall health and resilience.
- The product is safe for your sensitive skin, as it contains no harsh or prohibited ingredients that could cause irritation.

## Fit by skin type

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

## 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/))
- Liposomes containing the carrageenan/echinochrome complex reduced lysosomal activity by 26%, decreased ROS levels by 23%, and improved migration by 47% in LPS-treated human HaCaT keratinocytes compared to untreated inflamed cells. ([Marine Drugs, 2024](https://pubmed.ncbi.nlm.nih.gov/39728136/))
- Topical application of an aqueous gel containing 0.1% w/w naringenin demonstrated in vitro safety, significantly reduced UV-induced stratum corneum lipid peroxidation, and showed in vivo anti-inflammatory efficacy against methyl nicotinate-induced inflammation in human participants compared to a blank gel and untreated area, while chlorogenic acid, apigenin, and kaempferol displayed pro-oxidant profiles. ([Frontiers in Chemistry, 2024](https://pubmed.ncbi.nlm.nih.gov/38831914/))
- 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/))
- 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/))
- 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/))
- Macrocystis pyrifera lipids inhibited cytokine-induced pro-inflammatory signaling and barrier dysfunction in human keratinocyte models. ([International Journal of Molecular Sciences, 2023](https://pubmed.ncbi.nlm.nih.gov/38003573/))

## 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 soothing AM and PM routine every day to keep your normal skin calm. Always remember to apply SPF in the morning after your moisturizer.
- Apply your moisturizer after your toner in the morning, and after your serum in the evening. This step locks in hydration and protects your skin.
- Gently press a small amount of the moisturizer evenly across your face. Avoid rubbing to keep your sensitive skin happy and calm.
- You can apply this gentle formula on dry or slightly damp skin for the best comfort. It works wonderfully on clean skin to soothe redness and irritation.
- Do a patch test before your very first use to check your skin's reaction. Avoid getting the product directly into your eyes .
- Video: https://storage.pora.ai/2f72f5d69f07beeafc30237f829efbff.mp4

## Questions and answers

### What makes OSEA Hyaluronic Sea Serum a great fit for sensitive skin?

This serum is a great fit for sensitive skin because it provides deep hydration with sodium hyaluronate and uses gentle plant extracts to calm redness and irritation. It has a high safety profile with no harsh ingredients, making it very unlikely to trigger unwanted reactions.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/)

### Which ingredients make this serum a good fit for sensitive skin?

This serum is a great fit for sensitive skin because sodium hyaluronate provides deep hydration, while honeysuckle extracts help calm redness and irritation. Additionally, seaweed extracts offer antioxidant benefits and the formula contains no harsh ingredients, making it very safe and gentle for delicate skin.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/)

### What does Hyaluronic Acid do for sensitive skin?

Hyaluronic acid helps calm and hydrate sensitive skin while supporting the skin barrier to keep it soft and comfortable. Clinical studies show it improves surface moisture and reduces dryness, roughness, and redness without irritation.
Sources: [Journal of Drugs in Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/41037531/), [Journal of Cosmetic Dermatology, 2018](https://pubmed.ncbi.nlm.nih.gov/29356277/)

### What does Marine Extract do for sensitive skin?

Marine extract helps calm sensitive skin by reducing inflammation and supporting the skin barrier. Most marine ingredients lack clinical proof, but specific compounds like brown algae extracts show strong promise for soothing irritated skin.
Sources: [Marine Drugs, 2021](https://pubmed.ncbi.nlm.nih.gov/34436303/), [Marine Drugs, 2024](https://pubmed.ncbi.nlm.nih.gov/39452865/)

### Where does this serum go in a skincare routine for sensitive skin?

This treatment goes in the evening routine after cleansing and toning, followed by your moisturizer. Applying it at night helps keep your sensitive skin safe while delivering hydration.

### Can I use this serum with retinol, and in what order?

You can use this serum with retinol, applying the serum first to help calm redness and keep your skin comfortable. This type of routine benefits from gentle, hydrating formulas that support the skin barrier when using strong active ingredients.
Sources: [Cutis, 2006](https://pubmed.ncbi.nlm.nih.gov/17121065/)

### How often should I use this serum?

This serum fits into your evening routine as a treatment step, applied after your soothing toner and before your moisturizer. Daily use helps keep your skin hydrated and calm while supporting overall barrier health.
Sources: [Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/32141711/), [Health Science Reports, 2021](https://pubmed.ncbi.nlm.nih.gov/34141902/)

### Can this serum clog pores, cause breakouts or purging for sensitive skin?

This serum is safe for your sensitive skin because it contains no harsh or prohibited ingredients that could cause irritation or breakouts. It is unlikely to clog pores and helps calm redness while keeping your skin hydrated.
Sources: [Journal of Cosmetic Dermatology, 2023](https://pubmed.ncbi.nlm.nih.gov/38041526/)

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

You can safely use this moisturizing treatment around the eyes and on the body because it contains no harsh or irritating ingredients. Regular application of similar formulas helps keep dry skin plump and smooth while supporting barrier resilience.
Sources: [Polymers, 2023](https://pubmed.ncbi.nlm.nih.gov/37896378/)

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

Yes, it has no fragrance and no drying alcohol.

## Alternatives for sensitive skin

- [Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum](https://lovi.care/skincare/p/torriden/dive-in-low-molecular-hyaluronic-acid-serum/for/sensitive-skin) — High fit — $22.25 at Amazon
- [COSRX Hydrium Triple Hyaluronic Moisture Ampoule](https://lovi.care/skincare/p/cosrx/hydrium-triple-hyaluronic-moisture-ampoule/for/sensitive-skin) — High fit — $19.99 at Amazon
- [MEDI-PEEL Peptide 9 Volume White Cica All-in-one Essence](https://lovi.care/skincare/p/medi-peel/peptide-9-volume-white-cica-all-in-one-essence/for/sensitive-skin) — High fit — $24.40 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/p/fresh/soy-face-cleanser/for/sensitive-skin) — Superior fit — $28.08 at Amazon
- Soothing Toner: [Clarins Toning Lotion with Camomile](https://lovi.care/skincare/p/clarins/soothing-toning-lotion/for/sensitive-skin) — Superior fit — $28.05 at Amazon
- Moisturizer with Sun Protection: [innisfree Daily Mild Sunscreen](https://lovi.care/skincare/p/innisfree/daily-mild-sunscreen/for/sensitive-skin) — Superior fit — $18.00 at Amazon

## Where to buy

No store in United States 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/sensitive-skin (this page)
- United Kingdom: https://lovi.care/skincare/uk/p/osea/hyaluronic-sea-serum/for/sensitive-skin
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