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Hydration Sensation Trio
Cyber Monday Exclusive! For two days only, save on 3 full-size hydrating heroes, including hyaluronic acid-powered serums for face & body, plus our iconic body oil. Reveal hydrated, visibly firmer skin from head to toe.
Free Gift with orders $125+
Spend $125 to claim your Best of Body Travel Set!
Free Gift with orders $175+
Spend $175 to claim your Hyaluronic Lip Oil Booster + Keychain!
Free Gift with orders $225+
Spend $225 to claim your Ocean Cleanser!
Benefits
- Hydrates
- Firms
- Glow
Why you'll love it
Cyber Monday Exclusive! For two days only, save on 3 full-size hydrating heroes, including hyaluronic acid-powered serums for face & body, plus our iconic body oil. Reveal hydrated, visibly firmer skin from head to toe.
How to use
Hyaluronic Sea Serum (1 fl. oz.)
After cleansing, apply serum to face. Seal in with your favorite OSEA moisturizer.
Hyaluronic Body Serum (4 fl. oz.)
Apply to clean skin, from the neck down. Use morning and night.
Undaria Algae™ Body Oil (5 fl. oz.)
After serum, generously massage into skin to lock in moisture and leave skin glowing. Use morning and night.
Hydration Sensation Trio
Instantly unlocks 4 free gifts
Set Includes
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Hyaluronic Body Serum
New wave hydration
4 fl oz / 118 ml
Description
Lightweight body serum clinically shown to instantly boost skin’s hydration by 161%. Improves your natural moisture barrier for healthier looking skin. Powered by 5 molecular weights of hyaluronic acid, vegan peptides plus nutrient-rich seaweed. This full body treatment delivers multi-surface layer hydration for 24 hours. Recognized by the National Eczema Association with the Seal of Acceptance™.
View full product detailsScent profile
Fragrance-free
Key ingredients
Hyaluronic Acid
This high-performance blend includes 5 molecular weights of hyaluronic acid to boost hydration and improve skin’s moisture barrier.
Niacinamide
Hydrates and improves moisture retention.
Green Microalgae + Vegan Peptides
Hydrate, moisturize and nourish the skin.
Aloe
Delivers an immediate boost in hydration to the epidermis, the driest layer of skin, and improves skin's moisture barrier.
Ingredients
Water / Aqua / Eau, Propanediol, Propanediol Dicaprylate/Caprate, Glycerin, Coconut Alkanes, Spirulina Platensis Extract, Niacinamide, Caffeine, Ammonium Acryloyldimethyltaurate/VP Copolymer, Betaine, Haematococcus Pluvialis Extract, Hydrolyzed Haematococcus Pluvialis Extract, Codium Fragile Extract, Aloe Barbadensis Leaf Juice, Sodium Hyaluronate, Hydrolyzed Glycosaminoglycans, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Tremella Fuciformis Polysaccharide, Polyglutamic Acid, Lactobacillus Ferment, Coco-Caprylate/Caprate, Cetearyl Olivate, Sorbitan Olivate, 1,2-Hexanediol, Xanthan Gum, Ethylhexylglycerin, Trisodium Ethylenediamine Disuccinate, Citric Acid, Potassium Sorbate, Caprylhydroxamic Acid, Sodium Benzoate, Chlorophyllin-Copper Complex
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Hyaluronic Sea Serum
Clinically shown anti-aging moisture boost
1 fl oz / 30 ml
Description
Sea the Difference™
A burst of hydration for all skin types. This high-performance, hydrating serum is clinically shown to improve skin elasticity and visibly reduce fine lines & wrinkles. Two molecular weights of hyaluronic acid, seaweed and snow mushroom work together to help maintain optimal moisture levels. Dermatologist tested. Fragrance free.
View full product detailsScent profile
Fragrance-free
Key ingredients
Japanese Miru Seaweed
Replenishes and balances the skin’s natural moisture level for healthy-looking, hydrated skin.
2X Hyaluronic Acid
High and low molecular weights work synergistically to boost hydration and deliver multi-level moisturization.
Snow Mushroom
Naturally rich in hyaluronic acid and forms a hydration layer on skin to seal in moisture.
Volcanic Marine Ferment
This unique marine ferment effectively smooths the look of fine lines.
Ingredients
Water / Aqua / Eau, Glycerin, Codium Fragile Extract, Betaine, Propanediol, Hyaluronic Acid, Tremella Fuciformis Sporocarp Extract, Hydrolyzed Hyaluronic Acid, Bacillus Ferment, Citric Acid, Xanthan Gum, Hydroxyacetophenone, Trisodium Ethylenediamine Disuccinate, Caprylhydroxamic Acid, 1,2-Hexanediol, Chlorophyllin-Copper Complex
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Undaria Algae™ Body Oil
For a full-body glow
5 fl oz / 150 mL
Description
Clinically shown to instantly improve the look of skin elasticity and deliver deep moisturization. Our seaweed-infused body oil is a rush of antioxidant-rich hydration that softens, nourishes and firms like no other. Rich yet never greasy, this intoxicating aromatherapy elixir enhances every inch. Mineralize, moisturize and glow!
Also available in fragrance-free, which is hypoallergenic, dermatologist tested and safe for sensitive skin.
To create this one-of-a-kind oil, we soak hand-harvested Undaria Algae™ in barrels of botanical oils to infuse the vitamins and minerals. Due to the artisanal manner of production, variation in color is normal. This oil contains Undaria Seaweed and as such, a naturally occurring seaweed sediment may be present at the bottom of your bottle. This is completely normal and does not affect the quality or efficacy of the product.
View full product detailsScent profile
Uplifting grapefruit, lime & cypress blended + sweet notes of mango mandarin.
Key ingredients
Undaria Seaweed
Hand-harvested, rich in amino acids, antioxidants and vitamins and helps replenish the skin’s moisture barrier.
Botanical Oil Blend
A blend of passion fruit, acai, babassu and rice bran oils provide deep moisture to replenish dry skin.
White Lupin
Helps visibly firm and improve skin elasticity for more youthful-looking skin.
Ingredients
Helianthus Annuus (Sunflower) Seed Oil, Undaria Pinnatifida Powder, Citrus Paradisi (Grapefruit) Peel Oil, Tocopherol, Lupinus Albus Seed Extract, Passiflora Edulis Seed Oil, Oryza Sativa (Rice) Bran Oil, Euterpe Oleracea Fruit Oil, Orbignya Oleifera Seed Oil, Sesamum Indicum (Sesame) Seed Oil, Linum Usitatissimum (Linseed) Seed Oil, Oryza Sativa (Rice) Bran Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Helianthus Annuus (Sunflower) Extract, Citrus Latifolia Peel Oil, Cupressus Sempervirens Branch/Leaf Oil, Fragrance/Parfum*
*Natural Fragrance is a blend of aromatic compounds and/or essential oil(s) extracted from different parts of plants including flowers and fruits. These can be used to help get the sophisticated fragrances that make OSEA products smell wonderful.
Product Video
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Over 30 years ago, I started OSEA to share the healing powers of the sea. Since then, it’s been our mission to create clean, clinically tested skincare, combining pure, potent seaweed with active botanicals for results you can sea. My vision is to create waves of kindness for people and our planet.
FAQs
Hyaluronic Body Serum
A body serum is a lightweight skincare product formulated to address dryness or dullness. Serums are often highly concentrated to ensure nourishing ingredients reach beneath the surface of the skin. A body serum with hyaluronic acid helps deliver moisture, as hyaluronic acid acts as a humectant, making it highly effective at attracting and retaining moisture.
If your skin feels dry, our Hyaluronic Body Serum can help improve your skin’s natural moisture barrier by providing multi-layer surface hydration for 24 hours.
Apply our body serum onto clean, slightly damp or dry skin from the neck down. For best results, use the serum twice daily—once in the morning and again at night. Hyaluronic acid draws moisture into the skin, so slightly damp skin is ideal.
Use it year-round for all skin types, especially for dry or parched skin. Both cold and warm climates can dry out the skin, making this serum essential for maintaining smooth, hydrated skin.
Hyaluronic Sea Serum
After cleansing with your favorite cleanser, like our bestselling Ocean Cleanser, follow with Sea Minerals Mist to prep skin and then apply a few drops of Hyaluronic Sea Serum to slightly damp face and neck. Allow to absorb. Seal in with your moisturizer of choice, like Seabiotic® Water Cream during the day and Dream Night Cream at night.
Our skincare products are made with naturally derived ingredients to provide the best benefits for your skin. Hyaluronic Sea Serum is fragrance free meaning there is no fragrance or essential oils added. However, you may detect a scent from some of the naturally derived ingredients in this formula.
Olfactory receptors (or sense of smell) differ from person to person so it is hard to describe what you might smell in a fragrance-free formula, but it could best be described as a bit “earthy” or “medicinal”. Please note the scent does not affect the product’s quality or efficacy.
Undaria Algae™ Body Oil
Yes! This oil contains Undaria seaweed, so you may find naturally occurring seaweed sediment at the bottom of the bottle. It may not be visible at first, as it takes time to settle. This is normal and doesn't affect the product's quality or efficacy.
After cleansing with our Undaria Algae™ Body Wash, apply Hyaluronic Body Serum to dry or damp skin from the neck down. Then, generously massage Undaria Algae™ Body Oil as the last step in your body care ritual for silky, glowing skin. Undaria Algae™ Body Lotion or Undaria Algae™ Body Butter also work great layered under Undaria Algae™ Body Oil for an added boost of hydration.
Customer Reviews
- KKarynReviewingUndaria Algae™ Body OilI recommend this productRated 5 out of 5 stars4 minutes ago5 Stars
It is wonder in dry climates.
- JJenniferReviewingUndaria Algae™ Body OilI recommend this productRated 5 out of 5 stars1 hour ago5 Stars
Pwrfect as it always is.
- DBDiana B.Verified BuyerReviewingHyaluronic Body SerumI recommend this productWhat best describes your skin? Mature & DryHow old are you? 60+Rated 5 out of 5 starsYesterdaySkin loves this!
Goes on easy, non greasy, light and no smells. Helps creepy skin...
OSEA® MalibuYesterdayThank you so much for your kind words Diana! We’re so happy you’re loving Hyaluronic Body Serum.
- MMadyVerified ReviewerReviewingUndaria Algae™ Body OilI recommend this productWhat best describes your skin? Sensitive & ReactiveHow old are you? 12-24Rated 5 out of 5 starsYesterdayThe holy grail of body oils!!!
This is the first ever product I tried from OSEA, and I was NOT disappointed!!! I have never used a body oil that is so well made, that I have bought this so many times! The texture is thin and non-greasy, and has this lovely fresh, citrusy smell that is sooooo good! The best part about this product is that it soaks in so well into the skin, and makes my skin glow. Absolutely would buy again!
OSEA® MalibuYesterdayWe love hearing stories like this Mady. It’s why we do what we do! Thank you for being part of the OSEA community.
- HHelenReviewingUndaria Algae™ Body OilI recommend this productRated 5 out of 5 stars3 days ago5 Stars
Love this to hydrate akin and leaves a glow.
- AArianeReviewingUndaria Algae™ Body OilI recommend this productRated 5 out of 5 stars4 days ago5 Stars
My favorite ever
- SSamanthaReviewingUndaria Algae™ Body OilI recommend this productRated 4 out of 5 stars4 days ago4 Stars
You get alot of oil for the money! It smells really nice and moisturizes my skin well. I like that it has a pump too. I will be reordering when I need more!
- JOJeanne O.Verified BuyerReviewingHyaluronic Body SerumI recommend this productWhat best describes your skin? Mature & DryHow old are you? 60+Rated 5 out of 5 stars4 days agoMix them together!
I really like this serum. I like to mix it with the oil while my skin is still moist! Sometimes I spray the hydrating mist on if my skin isn’t wet.
- KKellieReviewingUndaria Algae™ Body OilI recommend this productRated 5 out of 5 stars5 days ago5 Stars
This smells totally divine and disappears into just washed skin so you’re left feeling plumped and gorgeously scented. PLEASE SELL GALLONS of this stuff?!
- CCleoReviewingUndaria Algae™ Body OilI recommend this productRated 5 out of 5 stars5 days ago5 Stars
Love it! Smells good and feels good on my skin.