Hyaluronic Sea Serum

 932 reviews

All Skin Types

High-performance, hydrating serum with hyaluronic acid and seaweed is clinically shown to improve elasticity and visibly reduce lines & wrinkles while boosting hydration.

$88.00
$88.00
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Hyaluronic Sea Serum

Hyaluronic Sea Serum

$88.00
$88.00
SAVE Sold out

Benefits

Anti-Aging Fragrance-Free Hydrates TSA Friendly

  • Helps improve skin's moisture barrier
  • Instant & long-lasting hydration
  • Reduces the look of lines & wrinkles
  • Visibly improves skin firmness & elasticity

Why you'll love it

Sea Results™

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.

Scent profile

Fragrance-free

How to use

How:After cleansing, apply serum to face. Seal in with your favorite OSEA moisturizer. External use only.
When:Use morning & night
Pro tip:For added hydration, mist face with Sea Minerals Mist before applying.

View full details

Results You Can Sea®

After One Use*:

  • 100% showed improvement in fine lines and wrinkles
  • 97% showed improvement in skin hydration
  • Improves skin elasticity

After 1 week*:

  • 100% showed improvement in fine lines and wrinkles
  • 90% showed improvement in skin hydration
  • Improves skin elasticity
  • Improves skin's moisture barrier

*Based on an independent, third-party clinical study conducted on 31 women.

  • The best!

    "This Hyaluronic Sea Serum is my favorite that I have tried of any brand. My skin looks and feels so good when I use it. I use this every day in the mornings and use the Dream Night Serum in the PM. I actually prefer this one between the two, but will continue to use both." — Ariel S.

    Clean 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.

      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.
      -Jenefer Palmer, OSEA Founder

      FAQs

      How do I layer Hyaluronic Sea Serum with other products?

      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.

      What does Hyaluronic Sea Serum smell like?

      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.

      How does Hyaluronic Sea Serum compare to other OSEA face serums?

      Hyaluronic Sea Serum is our high-performance hydrating serum. This fast-absorbing, 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. A burst of hydration for all skin types.

      Dream Night Serum is our wrinkle smoothing serum. This powerful formula works while you sleep to visibly reduce crow's feet, fine lines, and even deeper wrinkles as you age. Algae-derived bio-retinol and two firming peptides combine to mimic the effects of retinol without irritation. Wake up to visibly smoother, firmer skin.

      Seaglow Overnight Serum AHA Treatment is our exfoliating serum. High-performance 9% AHA + 2% Phytic Acid treatment exfoliates to promote skin turnover, which evens tone and texture overnight. Nutrient-rich seaweed and Shiunko oil reinforce skin's moisture barrier to reveal radiance. Wake up to clearer pores and a smoother, brighter complexion.

      What is the packaging made of and how can I recycle it?

      Packaging: Bottle is made of frosted glass.
      Recycling: Remove dropper and dispose of it in the trash. Clean bottle and put in your curbside recycling bin*.

      *Before disposing in your recycling bin, please check if your local curbside recycling program accepts frosted glass.

      JG

      Julia G.

      Verified Buyer
      ✓ Recommend
      4 days ago

      Just wonderful

      I got the tester size of the Hyaluronic Sea Serum and quickly fell in love with it. It has visibly made my skin brighter, softer and more firm. I wish the price tag wasn't as painful but I can't find anything else that is remotely similar to this product!
      Just wonderful
      SA

      Sheila A.

      Verified Buyer
      ✓ Recommend
      3 weeks ago

      A Must Try!

      The first time I tried the Sea Serum was with my subscription of the Body Oil and a sample of the serum was included. I love how my face feels when I use twice a daily under my moisturizer. My skin absorbs it and it never feels sticky. Since I’m very hesitant to try new products, I find that samples in subscription orders are a great way to try first. Thank you!
      A Must Try!
      TV

      Theresa V. P.

      Verified Buyer
      ✓ Recommend
      3 weeks ago

      Great product

      Using the hyaluronic sea serum under my seabiotic water cream is an outstanding combination for my skin. I truly can’t live without them.
      Great product
      IM

      Inés M. D.

      Verified Buyer
      ✓ Recommend
      1 month ago

      Loving it!

      I was never able to use any product wit hylaronic acid , renitol or salicylic acid, this product is different, excellent, truly loving it! Incentivized review This review was received as part of a promotion or in exchange for an incentive. The incentive was offered to both positive and negative reviews.
      RC

      Rachel C.

      Verified Buyer
      ✓ Recommend
      1 month ago

      Best serum!

      This serum is a great part of my daily routine! It's not sticky and everything layers on it smoothly without feeling heavy

      Results You Can Sea®

      Not in love with your new OSEA favorites? No worries—we’ve got you. If your product isn’t the perfect match, send it back within 30 days of your ship date for a full refund or an OSEA gift card. Shipping costs aren’t refundable.