Hyaluronic acid is a key ingredient for plump, hydrated, younger-looking skin, and it doesn’t have to break the bank to see noticeable results. According to a recent survey by NewBeauty, La Roche-Posay Hyalu B5 Pure Hyaluronic Serum ($40) stands out in the category, offering benefits that rival high-end formulas.
Readers have praised this serum for its plumping and smoothing effects, with one 58-year-old mentioning how it made her skin feel fresh, light, and soft. Another reader, age 43, noted that she had the best results with this serum compared to others on the market. Even users with sensitive, breakout-prone, oily skin have found success with this serum, calling it a standout among hyaluronic acid products.

The La Roche-Posay Hyalu B5 Pure Hyaluronic Serum sets itself apart with its oil- and paraben-free formula that is thicker than most serums, allowing for deep hydration and visible plumping of the skin. In addition to hyaluronic acid, it also contains vitamin B5 for skin-barrier repair and soothing irritation, making it ideal for sensitive skin. Despite its rich texture, users find that it layers well and has a pleasant fragrance.
If you’re in search of a hyaluronic acid serum that delivers real results without the high price tag, this serum is a must-add to your skincare routine.
*Source: BeautyEngine Advanced Research, 2025