Neutrogena Hydro Boost Hyaluronic Acid Serum for Face & Neck, 1 fl oz

Why it's worth it

An oil-free, non-comedogenic gel with purified hyaluronic acid, trehalose, and glycerin that soaks in within seconds. If richer serums leave you looking greasy by lunch, this is the one that hydrates without adding shine.

It absorbs so fast you'll forget you put it on. The gel is oil-free and non-comedogenic, and it leaves no film, no tack, no shine. That's the whole appeal if you have oily or combination skin and you've written off serums because they made your T-zone worse. Sunscreen and foundation go on top without sliding or grabbing.

Three humectants work better than one. Alongside purified hyaluronic acid, the formula uses trehalose — a sugar that binds water — and glycerin, the most boringly reliable hydrator in skincare. Together they hold moisture longer than HA alone typically does, which matters on a hot day or in an office where the air is bone dry.

From our review of 8 hyaluronic acid serums, by Sarah Wright, Editorial Associate

What we like

• +It absorbs so fast you'll forget you put it on
• +Three humectants work better than one
• +It's fragrance-free and hypoallergenic, which is rare at this end of the shelf
• +It's meant for your neck too

What to know

• –Nobody will tell you how much hyaluronic acid is in it
• –There's no barrier repair here