A white bottle of Medik8's Hydr8 B5™ serum, enriched with hyaluronic acid for better skin hydration, is topped with a dropper. A small amount of this fine line-reducing serum is displayed next to the bottle.
A bottle of Medik8 Hydr8 B5™, enriched with hyaluronic acid, enhances skin hydration, retains moisture, reduces fine lines, softens wrinkles, and improves complexion.
The Hydr8 B5™ serum by Medik8 comes with a dropper and contains multi-weight hyaluronic acid and vitamin B5 to hydrate, plump, and enhance skin hydration while reducing fine lines.
On display are Medik8's "Hydr8 B5 Intense" with a pipette and purple liquid, and "Hydr8 B5" in a clear bottle, both hyaluronic acid serums enhancing hydration for diverse skin types while reducing fine lines for a smoother complexion.
Skincare routine chart for optimal hydration: AM - Cleanse, Hydr8 with Medik8 Hydr8 B5™, Vitamin C, Sunscreen. PM - Cleanse, Hydr8 with Medik8 Hydr8 B5™ serum for fine lines, Vitamin A, Moisturize.
Clear bottle of Medik8's Hydr8 B5™ Serum, enriched with hyaluronic acid for skin hydration and fine line reduction, alongside a dropper and its sleek white box. Label text is black.
A Medik8 Hydr8 B5™ Liquid Rehydration Serum, equipped with a dropper and enriched with hyaluronic acid for superior skin hydration, is positioned next to its white packaging on a gray surface against a plain background.
A white bottle of Medik8's Hydr8 B5™ serum, enriched with hyaluronic acid for better skin hydration, is topped with a dropper. A small amount of this fine line-reducing serum is displayed next to the bottle.
A bottle of Medik8 Hydr8 B5™, enriched with hyaluronic acid, enhances skin hydration, retains moisture, reduces fine lines, softens wrinkles, and improves complexion.
The Hydr8 B5™ serum by Medik8 comes with a dropper and contains multi-weight hyaluronic acid and vitamin B5 to hydrate, plump, and enhance skin hydration while reducing fine lines.
On display are Medik8's "Hydr8 B5 Intense" with a pipette and purple liquid, and "Hydr8 B5" in a clear bottle, both hyaluronic acid serums enhancing hydration for diverse skin types while reducing fine lines for a smoother complexion.
Skincare routine chart for optimal hydration: AM - Cleanse, Hydr8 with Medik8 Hydr8 B5™, Vitamin C, Sunscreen. PM - Cleanse, Hydr8 with Medik8 Hydr8 B5™ serum for fine lines, Vitamin A, Moisturize.
Clear bottle of Medik8's Hydr8 B5™ Serum, enriched with hyaluronic acid for skin hydration and fine line reduction, alongside a dropper and its sleek white box. Label text is black.
A Medik8 Hydr8 B5™ Liquid Rehydration Serum, equipped with a dropper and enriched with hyaluronic acid for superior skin hydration, is positioned next to its white packaging on a gray surface against a plain background.
1 / 7
Dry & dehydrated skin

Hydr8 B5™

  • Hydrate
  • |
  • Plump
  • |
  • Smooth
Liquid Rehydration Serum

Infuse your skin with long-lasting hydration with Hydr8 B5.

Medik8's original hyaluronic acid serum floods multiple layers of the skin with multi-weight hyaluronic acid to leave it visibly plumped and supple, while effortlessly softening the look of fine lines.

The lightweight, oil-free serum absorbs quickly for fast visible results that won't leave the complexion feeling greasy.

Instead, it works to improve the skin's moisture retention and regeneration abilities for a cushion-soft, intensely hydrated and visibly replenished complexion.
Select a Size
Earn points
Reward Points

Earn 1 point for every €1 spent with our rewards programme, Me&Medik8. Simply create an account to join. Collect points every time you shop and redeem them for rewards, including money off future purchases.

You can also enjoy lots of exclusive benefits from secret promotions, free shipping and a gift on your birthday.

Earn points today! Join Me&Medik8 Rewards to earn points when you shop this product. Log In or Sign Up

Reasons to shop Medik8

Free ACS delivery in Cyprus
10% off your first order with newsletter signup
Easy 30 day returns
Key Benefits
Long-Lasting Hydration Boost

Immediately floods the skin with moisture while boosting its natural moisture retention and regeneration abilities for even longer-lasting hydration.

Oil-Free Moisture Replenishment

This lightweight formula leaves skin replenished without clogging your pores. Ideal for normal to sensitive skin types.

Plumping & Smoothing Effect

Effortlessly smooths the look of fine lines and wrinkles while promoting a plumper, more supple-looking complexion.

How to Use

Step 1

After cleansing in the morning and evening, massage 6 drops of Hydr8 B5 across the face, neck and décolletage.

Step 2

Leave to absorb before applying moisturiser.

Guide to Layering
Step 1: Cleanse
A white bottle of Medik8
Morning
Evening
Micellar Mousse™
Select a Size
Step 2: Tone
A bottle of Medik8
Morning
Evening
Press & Glow®
Select a Size
Step 3: Target
A white bottle of Medik8
Morning
Evening
Hydr8 B5™
Select a Size
Step 4: Renew
Medik8 Crystal Retinal® anti-aging serum, shown with a peach cream smear, is the No.1 retinal serum worldwide and has won over 45 global awards.
Evening
Crystal Retinal®
Select a Strength
Step 5: Moisturise
A jar of Medik8 Total Moisture Daily Facial Cream™ with the lid off, showing the cream inside and award plus dermatologist recommended badges behind. Contains hyaluronic acid to support your skin barrier as a daily moisturiser.
Morning
Evening
Total Moisture Daily Facial Cream™
Select a Size
Key Ingredients
Multi-Weight Hyaluronic Acid

Unlike many other hyaluronic acid serums, Hydr8 B5 uses multiple molecular weights of hyaluronic acid (small, medium and large), to distribute deep hydration evenly throughout the skin's many layers. This leaves the complexion visibly nourished and supple.

Vitamin B5

Also known as panthenol, vitamin B5 helps the skin to retain moisture, while supporting the regeneration of skin cells for visibly plumper skin.

Full List of Ingredients
Hydr8 B5™
Liquid Rehydration Serum

Aqua (Water), Panthenol, Sodium Hyaluronate, Calcium Pantothenate, Phenoxyethanol, Ethylhexylglycerin, Citric Acid.

*Although we try our best to ensure this list of ingredients is accurate there may be product upgrades from time to time, or slight variants between different regions based on local laws, meaning the only definitive ingredient list is that which is printed on the product packaging.
  • Fragrance free
  • No synthetic colours
  • Paraben free
  • Alcohol free
  • Certified by the vegan society
  • Used in professional treatments
Experts Recommended

This cult classic drenches the skin with moisture!

EMMA STODDART
Beauty Contributor - Grazia

Really hydrates the skin & gives a lovely glow

HELEN M
Verified Medik8 Customer

Complete Your Regime

Reviews

Frequently Asked Questions

What's the difference between Hydr8 B5 and Hydr8 B5 Intense?
Hydr8 B5 is our original, bestselling hyaluronic acid serum. Hydr8 B5 Intense is our supercharged hyaluronic acid serum - fortified with antioxidants and Natural Moisturising Factors (NMFs) for heightened hydration power.
Can I use Hydr8 B5 while pregnant or breastfeeding?
As a cosmetics company, we are unable to provide product advice in relation to medical conditions such as pregnancy. We would recommend discussing the ingredients with your GP or midwife before use. As general guidance, this product does not contain any ingredients which we would recommend to avoid during pregnancy, unless advised by your doctor.
Should I use Hydr8 B5 in the morning or evening?
Both! Hydr8 B5 can be applied after cleansing, both morning and evening, to give the skin a hydration boost.
Can I use Hydr8 B5 alongside Crystal Retinal? And if so, how?
After cleansing in the evening, apply Hydr8 B5 followed by Crystal Retinal for enhanced skin-firming results.
Should I use Hydr8 B5 or Hydr8 B5 Intense if I have sensitive skin?
We usually recommend Hydr8 B5 for maintaining daily hydration in normal or sensitive skin types. Hydr8 B5 Intense is for dehydrated skin in need of a more intense hydration boost.
Hydr8 B5™
Full Size (30ml)
Select a Size