Medik8 Hydr8 B5 serum bottle stands against a clean white background with a clear liquid puddle and droplets, with the dropper resting on top. Text identifies the product as a 30mL "Liquid Rehydration Serum."
Medik8 Hydr8 B5 serum bottle stands on a white pedestal against a bright white background. Text highlights that the product "Delivers long-lasting skin hydration," "Helps the skin retain essential moisture," "Softens the look of fine lines & wrinkles," and "Promotes a visibly plump & supple complexion."
A close-up of the Medik8 Hydr8 B5 serum bottle and dropper with clear liquid. Text highlights key ingredients: "MULTI-WEIGHT HYALURONIC ACID Leaves the skin visibly hydrated & supple" and "VITAMIN B5 Helps the skin retain & regenerate moisture for a plumper appearance."
Medik8 Hydr8 B5 Intense and Hydr8 B5 serum bottles stand on white pedestals against a clean, bright background. Text lists benefits for "HYDR8 B5 INTENSE" as "For supercharged, long-lasting hydration" and "Ideal for normal to dehydrated skin types." Benefits for "HYDR8 B5" include "For lightweight daily hydration" and "Ideal for normal to sensitive skin types."
An infographic titled “HOW TO LAYER” displays a step-by-step Medik8 skincare routine for AM and PM against a clean grey and white background. Sun and moon icons indicate the time of use. The Medik8 Hydr8 B5 bottle is highlighted in dashed boxes under the “HYDRATE” step for both routines. Other steps include "CLEANSE," "VITAMIN C," "SUNSCREEN," "VITAMIN A," and "MOISTURISE."
Medik8 Hydr8 B5 serum bottle stands in front of its matching white product carton on a clean white background. Text on both identifies the product as a 30mL "Liquid Rehydration Serum."
A clear glass bottle with a dropper, labeled 'Medik8 HYDR8 B5 Liquid Retention Serum', against a white background.
Medik8 Hydr8 B5 serum bottle stands against a clean white background with a clear liquid puddle and droplets, with the dropper resting on top. Text identifies the product as a 30mL "Liquid Rehydration Serum."
Medik8 Hydr8 B5 serum bottle stands on a white pedestal against a bright white background. Text highlights that the product "Delivers long-lasting skin hydration," "Helps the skin retain essential moisture," "Softens the look of fine lines & wrinkles," and "Promotes a visibly plump & supple complexion."
A close-up of the Medik8 Hydr8 B5 serum bottle and dropper with clear liquid. Text highlights key ingredients: "MULTI-WEIGHT HYALURONIC ACID Leaves the skin visibly hydrated & supple" and "VITAMIN B5 Helps the skin retain & regenerate moisture for a plumper appearance."
Medik8 Hydr8 B5 Intense and Hydr8 B5 serum bottles stand on white pedestals against a clean, bright background. Text lists benefits for "HYDR8 B5 INTENSE" as "For supercharged, long-lasting hydration" and "Ideal for normal to dehydrated skin types." Benefits for "HYDR8 B5" include "For lightweight daily hydration" and "Ideal for normal to sensitive skin types."
An infographic titled “HOW TO LAYER” displays a step-by-step Medik8 skincare routine for AM and PM against a clean grey and white background. Sun and moon icons indicate the time of use. The Medik8 Hydr8 B5 bottle is highlighted in dashed boxes under the “HYDRATE” step for both routines. Other steps include "CLEANSE," "VITAMIN C," "SUNSCREEN," "VITAMIN A," and "MOISTURISE."
Medik8 Hydr8 B5 serum bottle stands in front of its matching white product carton on a clean white background. Text on both identifies the product as a 30mL "Liquid Rehydration Serum."
A clear glass bottle with a dropper, labeled 'Medik8 HYDR8 B5 Liquid Retention Serum', against a white background.
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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.

Proven to leave the skin feeling more hydrated in 7 days, this 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.
(30ml)
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Medik8 Advanced Night Restore cream jar shown open with a rich dollop of white cream peaked on top against a clean white background, highlighting its smooth, restorative texture. Black text on the jar reads "Rejuvenating Multi-Ceramide Night Cream".
Advanced Night Restore™
  • Smooth
  • |
  • Nourish
  • |
  • Firm
 Rejuvenating Multi-Ceramide Night Cream
Select a Size
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.

Proven Results
Instantly leaves skin feeling quenched*
Instantly leaves skin feeling more comfortable*
7 days to leave skin feeling more hydrated*
86% agree their skin looks more plump after 4 weeks*
98% agree formula layered well under makeup*
*Proven via independent consumer study on Hydr8 B5 conducted over 4 weeks on 57 participants.
How to Use

First-time use

If you're new to Hydr8 B5 we recommend a patch test at least 24 hours before first use. Learn how to patch test here.

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.

Uses Per Tube

90

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 and regenerate moisture for visibly plumper skin.

Full List of Ingredients
Hydr8 B5™
Liquid Rehydration Serum

INGREDIENTS

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

PRECAUTIONS

Avoid eye contact. If product enters eyes, rinse well with water. If irritation occurs, cease use. Should irritation persist, consult a doctor. Use only as directed and on unbroken skin. Patch testing prior to use is advised. Refer to medik8.co/patch for an in-depth guide to patch testing.

*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

An oil-free solution for soft & supple skin

Daniel Isaacs
Chief Product Officer

This cult classic drenches the skin with moisture!

EMMA STODDART
Beauty Contributor - Grazia

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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 superfood 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™
(30ml)
(30ml)