This $40 Hyaluronic Acid Serum Leaves Skin ‘Plump and Soft’

We know hyaluronic acid is one of the key ingredients for plump, hydrated, younger-looking skin, but it’s not only the pricey formulas that deliver noticeable results. According to NewBeauty readers in a recent survey,* La Roche-Posay Hyalu B5 Pure Hyaluronic Serum ($40) is a standout in the category, offering visible benefits that rival high-end formulas.

One 58-year old reader praised the serum’s “plumping and smoothing effect,” while another said it makes her skin feel fresh, light and soft. A third, age 43, noted she’s had the “best results” with the serum when compared to others on the market. And they’re not alone: an Ulta reviewer with sensitive, breakout-prone, oily skin shared that they’ve used the serum daily since launch, calling it “the real winner” among a crowded field of hyaluronic acid products. “This one is built differently,” she adds.

BUY ON ULTA -$40

BUY ON DERMSTORE – $40

But what sets it apart? The oil- and paraben-free formula is thicker than most water-like serums, which helps it deeply hydrate and visibly plump the skin. Along with hyaluronic acid, it also contains vitamin B5 to support skin-barrier repair and soothe irritation, making it ideal for sensitive skin types. Despite its rich texture, users say it layers beautifully and has a pleasant, non-irritating fragrance.

If you’re looking for a hyaluronic acid serum that delivers real results without the luxury price tag, this one’s worth adding to your routine.

*Source: BeautyEngine Advanced Research, 2025