A clear glass dropper bottle of Liquid Peptides serum is presented, with its dropper removed and resting beside it and serum droplets, showing the texture
Woman is applying Liquid Peptides serum with a dropper to their face. To the left, text states "VISIBLE RESULTS IN JUST 7 DAYS*" and lists benefits: Fine lines faded, Wrinkles minimised, Skin elasticity rejuvenated, Skin texture refined, and Hydration restored. A footnote indicates the claims are proven via an independent consumer study.
A woman holds a bottle of Liquid Peptides serum. Text on the right states, "Proven to visibly boost skin plumpness in 7 Days*." A footnote states this is from an independent consumer study.
A close-up of the liquid peptides serum within a dropper. Text callouts highlight key ingredients: MATRIXYL® 3000". DRONE-TARGETED COPPER PEPTIDE, CARNOSINE, EXPRESSION LINE PEPTIDE.
A clear glass dropper bottle of Liquid Peptides serum and a tube of Eyelift Peptides are shown. Text states, DISCOVER POWERFUL WRINKLE-REDUCING RESULTS for both the face & delicate eye area by pairing Liquid Peptides with Eyelift Peptides.
A "HOW TO LAYER" diagram. The AM routine includes Cleanse ( Surface Radiance Cleanse), Target ( Liquid Peptides), Vitamin C ( C-Tetra), and Sunscreen ( Advanced Day Total Protect). The PM routine involves Cleanse ( Lipid-Balance Cleansing Oil), Target (Liquid Peptides), Vitamin A (Crystal Retinal), and Moisturise (Advanced Night Restore).
A clear glass dropper bottle of Liquid Peptides serum stands in front of its white product carton.
A small clear glass bottle (8mL) of Medik8 Liquid Peptides serum, with its dropper resting beside it. Text indicates it's "ALSO AVAILABLE IN A HANDY TRAVEL SIZE.
A clear glass dropper bottle of Liquid Peptides serum is presented, with its dropper removed and resting beside it and serum droplets, showing the texture
Woman is applying Liquid Peptides serum with a dropper to their face. To the left, text states "VISIBLE RESULTS IN JUST 7 DAYS*" and lists benefits: Fine lines faded, Wrinkles minimised, Skin elasticity rejuvenated, Skin texture refined, and Hydration restored. A footnote indicates the claims are proven via an independent consumer study.
A woman holds a bottle of Liquid Peptides serum. Text on the right states, "Proven to visibly boost skin plumpness in 7 Days*." A footnote states this is from an independent consumer study.
A close-up of the liquid peptides serum within a dropper. Text callouts highlight key ingredients: MATRIXYL® 3000". DRONE-TARGETED COPPER PEPTIDE, CARNOSINE, EXPRESSION LINE PEPTIDE.
A clear glass dropper bottle of Liquid Peptides serum and a tube of Eyelift Peptides are shown. Text states, DISCOVER POWERFUL WRINKLE-REDUCING RESULTS for both the face & delicate eye area by pairing Liquid Peptides with Eyelift Peptides.
A "HOW TO LAYER" diagram. The AM routine includes Cleanse ( Surface Radiance Cleanse), Target ( Liquid Peptides), Vitamin C ( C-Tetra), and Sunscreen ( Advanced Day Total Protect). The PM routine involves Cleanse ( Lipid-Balance Cleansing Oil), Target (Liquid Peptides), Vitamin A (Crystal Retinal), and Moisturise (Advanced Night Restore).
A clear glass dropper bottle of Liquid Peptides serum stands in front of its white product carton.
A small clear glass bottle (8mL) of Medik8 Liquid Peptides serum, with its dropper resting beside it. Text indicates it's "ALSO AVAILABLE IN A HANDY TRAVEL SIZE.
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Fine lines & wrinkles

Liquid Peptides™

  • Smooth
  • |
  • Firm
  • |
  • Plump
30% Complex Multi-Peptide Age-Defying Serum

Reduce the appearance of expression lines and deep-set wrinkles in just 1 bottle.* Liquid Peptides is an advanced daily peptide serum that's expertly formulated with no fewer than 10 peptides in a 30% blend, to both slow and prevent the visible formation of expression lines and deep wrinkles.

This supercharged serum supports the skin's natural age-defying functions and features drone-targeted technology to deliver our unique blend of potent peptides where they’re needed most in the skin - for maximum visible benefits. Say 'no' to expression lines and 'yes' to a visibly smooth, plump and hydrated complexion.

*Proven via independent consumer study on Liquid Peptides on 55 participants over 8 weeks
Select a Size
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Reasons to shop Medik8

Free standard Delivery on orders over €50
15% off your first order
"No questions asked" easy 30 day returns
Crystal Retinal®
Crystal Retinal®
Award-winning Age-Defying Vitamin A Night Serum
Select a Strength
Key Benefits
All-in-One Youth-Boosting Effect

Fine lines, expression lines, and deep-set wrinkles are visibly smoothed as the lightweight serum visibly plumps, firms and refines uneven skin texture.

Peptide Power Where Your Skin Needs It Most

Innovative, drone-targeted technology ensures each powerful peptide is delivered where it’s needed most - for maximum visible results.

Effective Hydration

Proven to leave the skin feeling deeply hydrated by helping to boost hyaluronic acid levels within the skin.

Age-Defying Results Booster

Perfectly complements the visible age-defying results of Medik8’s proven CSA Philosophy; vitamin C plus sunscreen by day, vitamin A by night.

Proven Results
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7 days to improved skin firmness*
7 days to improved skin plumpness*
4 weeks to visible wrinkle reduction*
4 weeks to more youthful-looking skin overall*
93% agree Liquid Peptides is gentle on the skin*
*Proven via independent consumer study on Liquid Peptides on 55 participants over 8 weeks
How to Use

First-time use

If you're new to Liquid Peptides 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 Liquid Peptides across the face, neck and décolletage.

Step 2

Leave to absorb before applying moisturiser. We recommend Total Moisture Daily Facial Cream.

Uses Per Tube

80

Guide to Layering
Step 1: Cleanse
Surface Radiance Cleanse™
Morning
Evening
Surface Radiance Cleanse™
Select a Size
Step 2: Brighten
: Medik8 C-Tetra Advanced bottle displayed on a clean white background with translucent serum droplets, highlighting its lightweight gel-serum texture.
Morning
C-Tetra Advanced
(0)
Step 3: Target
A clear glass dropper bottle of Liquid Peptides serum is presented, with its dropper removed and resting beside it and serum droplets, showing the texture
Morning
Evening
Liquid Peptides™
Select a Size
Step 4: Renew
Evening
()
Step 5: Moisturise
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
Evening
Advanced Night Restore™
Select a Size
Key Ingredients
Matrixyl® 3000 (pronounced 'ma-TRIX-ul 3 thousand')

A combination of peptides which 'trick' the skin into producing more collagen for visible firming, plumping and wrinkle-smoothing results.

Drone-Targeted Copper Peptide

Encapsulated in a polymer system, it dives through the layers of the skin to specifically support collagen-producing cells.

Expression Line Peptide

An innovative peptide which works to tackle the appearance and formation of expression lines by helping to block the pathway that leads to facial muscle contraction. This leaves the skin visibly smoother and more youthful-looking.

Carnosine (pronounced 'CAR-no-seen')

A protective peptide that is naturally produced in the body, carnosine helps to block skin-damaging sugars from binding to collagen in the skin, therefore minimising the visible formation of wrinkles.

Expression Line Peptide

An innovative peptide which works to tackle the appearance and formation of expression lines by helping to block the pathway that leads to facial muscle contraction. This leaves the skin visibly smoother and more youthful-looking.

Carnosine (pronounced 'CAR-no-seen')

A protective peptide that is naturally produced in the body, carnosine helps to block skin-damaging sugars from binding to collagen in the skin, therefore minimising the visible formation of wrinkles.

Multi-Weight Hyaluronic Acid (prounounced 'Hiya-le-ronick')

With a unique ability to attract and retain more than 1,000x its own weight in water, hyaluronic acid draws moisture from the lower layers of the skin into the upper layers to leave the complexion nourished and visibly supple.

Full List of Ingredients
Liquid Peptides™
30% Complex Multi-Peptide Age-Defying Serum

INGREDIENTS

Aqua (Water), Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina (Green Algae) Extract, Ethylhexylglycerin, Citric Acid, Palmitoyl Tripeptide-5, Sodium Benzoate, Acetyl Hexapeptide-8, Tetrapeptide-21, Pentapeptide-18, Palmitoyl Tripeptide-1, Pantolactone, Palmitoyl Tripeptide-38, Palmitoyl Tetrapeptide-7, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Potassium Sorbate, Xanthan Gum.

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
  • Used in professional treatments
Experts Recommended

Liquid Peptides takes the renowned benefits of peptides to the next level.

DANIEL ISAACS
Chief Product Officer
A portrait of a Medik8 skincare scientist and founder wearing a branded lab coat, representing the research and innovation behind the formulation.

One of the finest formulations you’ll find!

HANNAH COATES
Beauty & Wellness Editor - British Vogue

Complete Your Regime

Reviews

Frequently Asked Questions

Can I use Liquid Peptides alongside Crystal Retinal?
Absolutely. Liquid Peptides and Crystal Retinal are the perfect nighttime pairing to take your visible wrinkle-reducing results to the next level.
Can I use Liquid Peptides directly after an exfoliating acid like Press & Glow or Press & Clear?
Yes. Liquid Peptides can be applied straight after an exfoliating acid, in both your AM and PM routines.
What's the difference between Liquid Peptides and Copper PCA Peptides?
We recommend Copper PCA Peptides as a great alternative for those who are sensitive to vitamin C, while Liquid Peptides is our all-round age-defying peptide formula.
Can I use Liquid Peptides during pregnancy?
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 apply Liquid Peptides in the morning or evening?
Both. Liquid Peptides can be applied both morning and night for optimal visible results. Apply after cleansing and toning but before oil-based serums and moisturisers.
Liquid Peptides™
(30ml)
Select a Size