About this product
A marine-based serum with hyaluronic acid in two molecular weights, seaweed extract, snow mushroom, and volcanic marine ferment, designed to hydrate and minimize fine lines.
Full ingredients
Guru Score
Yay
Early verdict · Few reviews so farWhat they liked
What they flagged
What the gurus are saying
This marine serum hydrates like ocean snail mucin without the snail, thanks to hyaluronic acid paired with seaweed, snow mushroom, and volcanic ferments that work together for a plump, bouncy skin feel. Testers consistently note it smooths fine lines and absorbs well, though it performs best on damp skin to activate the hyaluronic acid. Some love the value compared to pricier luxury brands, while others prefer more affordable K-beauty alternatives.
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
A marine-based serum with hyaluronic acid in two molecular weights, seaweed extract, snow mushroom, and volcanic marine ferment, designed to hydrate and minimize fine lines.
Mostly yes. 2 of the 3 gurus who reviewed it give it their stamp of approval, for a Guru Score of 83%.
OSEA Hyaluronic Acid C Serum holds a Guru Score of 83%. That is our read on how warmly the experts talk about it, based on the verdicts of 3 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.
OSEA Hyaluronic Acid C Serum is generally suited to dry skin and mature skin.
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