---
product_id: 284634069
title: "La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum for Face, with Vitamin B5, Anti-Aging Serum for Fine Lines and Wrinkles, Plumps and Repairs Dry Skin, Safe on Sensitive Skin"
brand: "la roche-posay"
price: "$112.35"
currency: USD
in_stock: true
reviews_count: 13
category: "La Roche Posay"
url: https://www.desertcart.us/products/284634069-la-roche-posay-hyalu-b5-pure-hyaluronic-acid-serum-face
store_origin: US
region: United States of America
---

# Sensitive skin safe 27x deeper hydration 1-hour barrier repair La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum for Face, with Vitamin B5, Anti-Aging Serum for Fine Lines and Wrinkles, Plumps and Repairs Dry Skin, Safe on Sensitive Skin

**Brand:** la roche-posay
**Price:** $112.35
**Availability:** ✅ In Stock

## Summary

> 💧 Unlock the secret to plump, youthful skin—because your glow deserves the best.

## Quick Answers

- **What is this?** La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum for Face, with Vitamin B5, Anti-Aging Serum for Fine Lines and Wrinkles, Plumps and Repairs Dry Skin, Safe on Sensitive Skin by la roche-posay
- **How much does it cost?** $112.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/284634069-la-roche-posay-hyalu-b5-pure-hyaluronic-acid-serum-face)

## Best For

- la roche-posay enthusiasts

## Why This Product

- Trusted la roche-posay brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Anti-Aging Boost:** Targets fine lines and improves elasticity with a rich, non-greasy texture you’ll love.
- • **French Pharmacy Favorite:** Trusted by 90,000+ dermatologists worldwide—join the skincare elite.
- • **Gentle Yet Potent Formula:** Allergy-tested, oil-free, and dermatologist-approved for all skin types, including sensitive.
- • **Rapid Skin Barrier Repair:** Clinically proven to restore moisture barrier within just 1 hour—bounce back fast.
- • **Next-Level Hydration Power:** Delivers 27x more hyaluronic acid deep into 8 skin layers for instant plumpness.

## Overview

La Roche-Posay Hyalu B5 Serum combines a super-activated 4 Hyaluronic Acid System with Vitamin B5 and Madecassoside to deliver intense hydration 27 times deeper into the skin. Clinically proven to repair the skin’s moisture barrier in just 1 hour, this oil-free, allergy-tested serum visibly plumps, smooths fine lines, and is safe for sensitive skin. Dermatologist-tested and favored globally, it’s the ultimate daily anti-aging hydration boost for a supple, radiant complexion.

## Description

Product Description Hyalu B5 Hyaluronic Acid Serum for face is now super-activated with a 4 Hyaluronic Acid System to deliver 27x more hyaluronic acid 8 layers into the skin. This hydrating facial serum provides intense hydration to plump the skin. Formulated with high and low molecular weight hyaluronic acids, glycerin, and vitamin B5, it helps repair skin's moisture barrier in 1 hour and immediately recovers suppleness and bounce, as demonstrated by instrumental testing. The allergy-tested formula also contains La Roche-Posay Thermal Spring Water, known for its soothing properties, and is dermatologist-tested, making it safe for sensitive skin. This anti-aging serum is suitable for daily use to help reduce the appearance of fine lines and improve skin smoothness. Apply 4-5 drops morning and evening to the face and neck, and use alone or as an added boost to your favorite moisturizer. Featuring a rich serum texture, it leaves skin hydrated and feeling smooth to the touch. Bounce back with Hyalu B5 Suractivated Serum for life-changing hydration and repair. Brand Story Recommended by 90,000 dermatologists worldwide, La Roche-Posay offers unique daily skincare developed using a strict formulation charter and stringent clinical testing for efficacy and safety, even on sensitive skin.

Review: Expensive but effective - One of the best HA serums on the market and nice splurge when you want something French and fancy sounding. It hydrates and plumps fine lines as advertised without being heavy nor greasy. It does have a fragrance, but it is pleasant and mild. I was concerned it would irritate my very sensitive skin and rosacea, but pleasantly surprised after a month of daily use, zero problems. I use it in combination with the Double Repair moisturizer. My dermatologist has been pretty impressed with the health of my skin lately. In complete fairness, there are other HA serums on the market that are as effective, use the same ingredients and concentrations, at half to a quarter of the price (The Ordinary, for example.) YMMV
Review: Hydrating serum that leaves skin soft and plump - I bought this serum because I needed extra hydration, especially with my busy schedule and long work shifts. The texture is lightweight but very hydrating. It absorbs quickly and leaves my skin feeling soft and smooth without being greasy. I use it before my moisturizer, and it layers well with other products. I’ve noticed my skin looks more hydrated and feels more comfortable, especially on days when it feels dry or tired. Pros: very hydrating, lightweight, smooth texture, good for daily use Cons: a bit pricey for the size Overall, this is a great serum if you’re looking to improve hydration and keep your skin looking healthy.

## Features

- Ultra Hydrating Hyaluronic Acid Serum for Barrier Repair: Deeply hydrates, plumps skin to the touch, and restores the moisture barrier for a supple feel, with 91% agreeing skin feels smoother instantly. ***Consumer test, 85 subjects, 2x/day application.
- Targeted Anti-Aging & Skin Repair: A super-activated hydrating serum designed to target anti-aging concerns, reducing fine lines, dehydrated skin and improving elasticity, with **1-hour skin barrier repair. **Instrumental test.
- Formulated for Rich, Plump Hydration: Features pure hyaluronic acid, glycerin, madecassoside, and vitamin B5 for optimal hydration, rich texture, and suitability for sensitive skin. Leaves skin hydrated and smooth to the touch.
- Dermatologist Tested Face Serum for Women & Men: Clinically proven to hydrate and visibly plump skin, with 90% seeing more hydrated, supple skin and 96% reporting improved texture. ***Consumer test, 85 subjects, 2x/day application.
- Gentle Yet Powerful for All Skin Types: Allergy-tested formula suits all skin types, including sensitive skin, delivering hydration and reducing fine lines with refined texture for an even, smoother look.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083SGYDJY |
| Active Ingredients | hyaluronic_acid |
| Best Sellers Rank | #553 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #20 in Facial Serums |
| Brand | La Roche-Posay |
| Brand Name | La Roche-Posay |
| Customer Reviews | 4.6 out of 5 stars 35,477 Reviews |
| Item Form | Serum |
| Item Volume | 50 Milliliters |
| Item Weight | 0.04 Kilograms |
| Manufacturer | La Roche Posay |
| Manufacturer Part Number | MB187900 |
| Material Features | Allergy Tested, Dermatologist Tested for Safety, Non-Comedogenic, Sensitive Skin Tested |
| Material Type Free | Oil Free, Paraben Free |
| Model Number | MB187900 |
| Number of Items | 1 |
| Product Benefits | Two types of Pure Hyaluronic Acid & Vitamin B5. Oil-Free. Allergy-Tested. Noncomedogenic. Safe for all skin types. Product Benefits Two types of Pure Hyaluronic Acid & Vitamin B5. Oil-Free. Allergy-Tested. Noncomedogenic. Safe for all skin types. See more |
| Recommended Uses For Product | Pure hyaluronic acid face serum locks in moisture to leave the skin feeling soft and plump. This anti aging skin care serum helps repair skin by replenishing the natural moisture barrier. Facial serum for wrinkles and fine lines. |
| Scent | Scented |
| Scent Name | Scented |
| Skin Tone | All |
| Skin Type | All, Dry, Sensitive |
| Special Ingredients | Glycerin, Hyaluronic Acid, Madecassoside, Vitamin B5 |
| Target Use Body Part | Face |
| Unit Count | 1.69 Fluid Ounces |
| Use for | Face |

## Product Details

- **Scent:** Scented
- **Skin Type:** All, Dry, Sensitive
- **Special Ingredients:** Glycerin, Hyaluronic Acid, Madecassoside, Vitamin B5
- **Use for:** Face

## Images

![La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum for Face, with Vitamin B5, Anti-Aging Serum for Fine Lines and Wrinkles, Plumps and Repairs Dry Skin, Safe on Sensitive Skin - Image 1](https://m.media-amazon.com/images/I/51DSss8n9cL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How can I maximize the benefit of Hylau B5?**
A: For the deepest hydration, apply Hyaluronic Acid to damp sink to maximize absorption. We recommend that you mist your skin with our Thermal Spring water before use. Dont forget to lock in moisture with a moisturizer.

**Q: Why is Hyaluronic Acid effective for anti aging?**
A: This skincare ingredient can hold up to 1000x its weight in water, which is important considering as we age our skin loses the ability to hold onto water and stay moisturized—causing visible loss of plumpness and suppleness in our skin’s appearance.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Expensive but effective
*by E***C on May 5, 2026*

One of the best HA serums on the market and nice splurge when you want something French and fancy sounding. It hydrates and plumps fine lines as advertised without being heavy nor greasy. It does have a fragrance, but it is pleasant and mild. I was concerned it would irritate my very sensitive skin and rosacea, but pleasantly surprised after a month of daily use, zero problems. I use it in combination with the Double Repair moisturizer. My dermatologist has been pretty impressed with the health of my skin lately. In complete fairness, there are other HA serums on the market that are as effective, use the same ingredients and concentrations, at half to a quarter of the price (The Ordinary, for example.) YMMV

### ⭐⭐⭐⭐⭐ Hydrating serum that leaves skin soft and plump
*by S***S on April 11, 2026*

I bought this serum because I needed extra hydration, especially with my busy schedule and long work shifts. The texture is lightweight but very hydrating. It absorbs quickly and leaves my skin feeling soft and smooth without being greasy. I use it before my moisturizer, and it layers well with other products. I’ve noticed my skin looks more hydrated and feels more comfortable, especially on days when it feels dry or tired. Pros: very hydrating, lightweight, smooth texture, good for daily use Cons: a bit pricey for the size Overall, this is a great serum if you’re looking to improve hydration and keep your skin looking healthy.

### ⭐⭐⭐⭐⭐ Sensitive, Normal to Dry Skin and this is the amazing set I bought
*by J***M on August 7, 2025*

I bought this 3 la roche posay set coz I want to lighten my face as am always expose cleaning our swimming pool everyday and florida weather made my skin darker. I dont use skincare coz im lazy and busy and has sensitive skin but I found this brand from my flight attendant friend coz her skin was amazing!!!and ddnt think twice to try bcoz of her! - Mela b3 - to lighten my face (day and night use) - Hyalu b5 - to hydrate my face and help with fine lines in my eyes, anti aging serum (day and night use) - Hydraphase- for dehydrated skin and dull complexion (day and night use) When I wrote this feedback its my 6th day using it and am so happy so far. No breakout, not affecting my skin, no stings, no weird side effects in my face, it feels really good in my face and my make up became awesome looking its not caky anymore and no more annoying lines from my foundation , thats when i found out my skin is normal to dry skin (i get caky and lines when im on foundation) and these set helps me a lot!!! Hoping to bring back my lighter face soon with mela b3!!! About the seal and authenticity I searched about it too I was bothered of not having seal so I made a research and found this •No, not every La Roche-Posay product is sealed some come simply in a box with no wrapping or seal. • Yes, some items feature protective elements like QR codes or holograms for authenticity. • Packaging styles can differ depending on the product type and region. If you’re ever unsure, you can usually check authenticity by scanning the QR code (when present) or verifying the product through their official website or app. Negative part, Its little pricey but so worth it!!!

## Frequently Bought Together

- La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum for Face, Vitamin B5 + Hyaluronic Acid + Madecassoside, Hydrating Serum Visibly Plumps Skin, Sensitive Skin Safe, Anti Aging, Oil-Free
- La Roche-Posay Pure Retinol Face Serum with Vitamin B3, Anti Aging Face Serum for Lines, Wrinkles & Premature Sun Damage to Resurface & Hydrate, Suitable for Sensitive Skin, 1.0 Fl. Oz
- La Roche-Posay Toleriane Dermallergo Night Cream for Face, Intense Soothing Moisturizer with Vitamin E, Allergy Tested, for Sensitive Skin, Formerly Toleriane Ultra Night

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-14*