OSEA Serum
Hyaluronic Sea Serum
Seaweed-and-hyaluronic-acid hydrating serum in a frosted glass dropper bottle. Vegan, clinically tested, and one of the cleanest glass-packaged serums at this tier.
Good to know: Glass bottle, though the dropper assembly (bulb and collar) is not glass.
Why we picked it
OSEA has formulated with seaweed since 1996, and this serum layers hyaluronic acid over algae extracts in a frosted glass dropper bottle. It's vegan, clinically tested, and pulls water into skin the way the ingredient is famous for. The dropper bulb and collar are the small exception to the glass. Among serums at this tier it's one of the cleanest packages going.
What it’s made of
Glass bottle. Chosen for what it’s made of, not what it’s wrapped in.
- Glass
- Inert and endlessly recyclable, never leaches into food or drink.
Guide · 3 min read
Plastic-free skincare that still performs
