OSEA Hyaluronic Acid Sea Serum

1 oz

4.6  (811 reviews)
A frosted glass bottle with a silver pump top labeled OSEA hyaluronic sea serum, containing 1 fl oz (30 ml) of product. The liquid inside appears light green. Standing outdoors by the ocean in natural light, a person uses a dropper to apply OSEA Hyaluronic Acid Sea Serum to their face, helping improve skin firmness. Close-up of a smiling person applying OSEA Hyaluronic Acid Sea Serum to their cheek, showing skin texture and fine lines. Text highlights hydration, improved elasticity, reduced wrinkles, and fragrance-free firming skincare. A woman with radiant skin applies OSEA Hyaluronic Acid Sea Serum, packed with hyaluronic acid. Clinical results: 100% saw reduced fine lines/wrinkles, 97% reported more hydration and firmer skin. A clear bottle of OSEA Hyaluronic Acid Sea Serum is shown with “Lightweight, Non-Sticky Gel Serum” above it, surrounded by drops of gel on a light blue background.
This product has significantly reduced plastic use compared to conventional alternatives primarily made of plastic, with key components of its packaging made from materials with greater circularity potential, such as paper, glass, or aluminum.
A frosted glass bottle with a silver pump top labeled OSEA hyaluronic sea serum, containing 1 fl oz (30 ml) of product. The liquid inside appears light green.

$88.00

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Complete Your Routine

This fast-absorbing, anti-aging serum is clinically proven to smooth the appearance of all lines and deliver a lifted, firmer look. Two molecular weights of hyaluronic acid, seaweed and snow mushroom, work together to restore and maintain optimal moisture levels, keeping your skin hydrated, plump and dewy any time of day. Clinically and dermatologist tested.

Clinically Proven to*:

- Instantly increase hydration
- Minimize the look of lines & wrinkles in 2 weeks
- Visibly improve skin firmness & elasticity in 2 weeks

After 2 weeks*:

- 100% agreed skin felt softer and smoother
- 97% agreed skin felt more supple & elastic
- 93% agreed skin felt firmer & bouncy

After 4 weeks*:

- 97% agreed it minimized the look of lines & wrinkles
- 90% agreed expression & emerging lines appear less visible

*Based on a third-party clinical study conducted over 4 weeks on 30 women ages 43-64 (including; expert skin grading, instrumental measurements & consumer perception study).

Water / Aqua / Eau, Codium Fragile Extract, Betaine, Sodium Hyaluronate, Tremella Fuciformis Sporocarp Extract, Bacillus Ferment, Hydrolyzed Hyaluronic Acid, Glycerin, Sodium Benzoate, Potassium Sorbate, Citric Acid, Lonicera Japonica (Honeysuckle) Flower Extract, Lonicera Caprifolium (Honeysuckle) Flower Extract, Sodium Copper Chlorophyllin. Please be aware that ingredient lists may change or vary from time to time. Please refer to the ingredient list on the product package you receive for the most up-to-date list of ingredients.

After cleansing, apply Hyaluronic Sea Serum over skin. Allow to absorb. Seal in with OSEA moisturizer of your choice. Use morning and night.

OSEA was founded in Malibu in 1996 by Jenefer Palmer, inspired by her grandmother Elsa’s belief in the restorative power of the ocean. Drawing on multigenerational female healing traditions, OSEA crafts clean, seaweed‑infused skincare using thoughtfully sourced ingredients, climate‑positive packaging, and uncompromising transparency.

Grove Values

Let’s end the plastic era for good.

This product has significantly reduced plastic use compared to conventional alternatives primarily made of plastic, with key components of its packaging made from materials with greater circularity potential, such as paper, glass, or aluminum.

Go Beyond Plastic
This product has significantly reduced plastic use compared to conventional alternatives primarily made of plastic, with key components of its packaging made from materials with greater circularity potential, such as paper, glass, or aluminum.
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