Liquid Peptides™

Key Benefits All-in-One Youth-Boosting Effect Fine lines are visibly reduced as the lightweight serum plumps, firms and refines the look of 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 7 days to improved skin firmness & plumpness* 7 days to visible fine line & wrinkle reduction* 7 days to younger-looking skin* 98% agree Liquid Peptides is gentle on the skin* 97% experienced long-lasting hydration* *Proven via independent consumer study on Liquid Peptides on 60 participants over 8 weeks. | Please Note: Product packaging shown may be different to the product received due to regional variations. 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 bottle 80 Guide to Layering Step 1: Cleanse Surface Radiance Cleanse™ Select a Size Full Size (150ml) Full Size (150ml) Travel Size (40ml) Add to Bag £25 Step 2: Brighten C-Tetra® Advanced Full Size (30ml) Add to Bag £72 Step 3: Target Liquid Peptides™ Select a Size Full Size (30ml) Full Size (30ml) Travel Size (8ml) Add to Bag £59 Step 4: Renew Crystal Retinal® Select a Strength Recommended: Crystal Retinal 6 Crystal Retinal 1 Crystal Retinal 3 Recommended: Crystal Retinal 6 Crystal Retinal 10 Crystal Retinal 20 Crystal Retinal 24 Add to Bag £69 Step 5: Moisturise Advanced Night Restore™ Select a Size Full Size (50ml) Full Size (50ml) Travel Size (12.5ml) Add to Bag £62 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 fine 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 the first signs of ageing. Expression Line Peptide An innovative peptide which works to tackle the appearance and formation of fine 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 the first signs of ageing. Multi-Weight Hyaluronic Acid With the ability to attract and retain more than 1,000 times its own weight in water, multi-weight hyaluronic acid draws moisture into multiple layers of the skin; leaving the complexion deeply hydrated and visibly supple. See More View all Fragrance free No synthetic colours Paraben free Alcohol free Certified by the vegan society Experts Recommended "Liquid Peptides takes the renowned benefits of peptides to the next level." DANIEL ISAACS Chief Product Officer "One of the finest formulations you’ll find!" HANNAH COATES Beauty & Wellness Editor - British Vogue 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. 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. Help Products About Resources Dannielle G. 🇬🇧 Verified Buyer 30/03/26 Maria B. 🇬🇧 Verified Buyer 09/02/26 Svitlana T. 🇬🇧 Verified Buyer 09/01/26 Sania 🇵🇰 Verified Buyer 07/12/25 Amanda G. 🇬🇧 Verified Buyer 27/08/25 Fran 🇬🇧 Verified Buyer 06/10/26 Shop Liquid Peptides, a powerful multi-peptide and hyaluronic acid serum that smooths fine lines, boosts hydration and restores skin's youthful bounce. Clinically proven to visibly smooth fine lines in just 7 days.* Liquid Peptides is a targeted daily peptide serum for the first signs of ageing. Expertly formulated with 10 powerful peptides in a 30% blend, to help slow & prevent fine line formation. 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 fine lines and 'yes' to a visibly smooth, plump and hydrated complexion.