Medik8
Liquid Peptides™The Ordinary
Multi-Peptide + Copper Peptides 1% SerumA serum built around Hyaluronic acid and Panthenol, for hydration and smoothing.
A serum built around Copper peptides and Peptides, for hydration and smoothing.
Brand price
GBP 59.00 · checked 8 Oct 2026 · brand's site
Brand price
USD 28.80 · checked 25 Sept 2026 · brand's site

At a Glance

Every check both products could be assessed on comes out the same. Tap any answer to see why.

Key Ingredients

Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.

Benefits

Hydrating6
Boosts hydration and relieves dry, tight skin.
Acetyl Hexapeptide-8, Butylene Glycol, Glycerin, Panthenol, Pantolactone, Sodium Hyaluronate
Barrier Repair4
Strengthens and restores the skin's natural barrier.
Reduces Irritation2
Eases discomfort and supports skin resilience.
Anti-Aging4
Softens lines and helps skin look youthful.
Acetyl Hexapeptide-8, Heptapeptide-15 Palmitate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1
Hydrating14
Boosts hydration and relieves dry, tight skin.
Acetyl Hexapeptide-8, Butylene Glycol, Fructose, Glucose, Glycerin, Histidine, Maltose, PCA, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Lactate, Sodium PCA, Trehalose, Urea
Barrier Repair3
Strengthens and restores the skin's natural barrier.
Reduces Irritation2
Eases discomfort and supports skin resilience.

Concerns

May Worsen Seborrheic Dermatitis8
May feed the yeast involved in seborrheic dermatitis.
Acetyl Hexapeptide-8, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-38, Palmitoyl Tripeptide-5, Polysorbate 20
May Worsen Seborrheic Dermatitis6
May feed the yeast involved in seborrheic dermatitis.
Acetyl Hexapeptide-8, Acetylarginyltryptophyl Diphenylglycine, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-38, Polysorbate 20

Ingredients Side-by-side

Cleansing
Polysorbate 20 (in both products)
Cleansing
0 / 0
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Polysorbates (Tween emulsifiers)
- May Worsen Seborrheic Dermatitis
Skin Conditioning
Acetyl Hexapeptide-8 (in both products)
Humectant
- Fatty alcohols (Malassezia)
- Peptides
- Anti-Aging
- Firming
- Smoothing
- May Worsen Seborrheic Dermatitis
Palmitoyl Tripeptide-1 (in both products)
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Peptides
- Anti-Aging
- Firming
- May Worsen Seborrheic Dermatitis
Palmitoyl Tetrapeptide-7 (in both products)
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Peptides
- Anti-Aging
- Firming
- Reduces Irritation
- May Worsen Seborrheic Dermatitis
Palmitoyl Tripeptide-38 (in both products)
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Skin Conditioning
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aqua
Solvent
Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →Butylene Glycol
Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
Learn more about Butylene Glycol →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Carbomer
Emulsion Stabilising, Gel Forming, Viscosity Controlling
2-Propenoic acid, polymer with 2,2-bis(hydroxymethyl)propane-1,3-diol 2-propenyl ether
Learn more about Carbomer →Polysorbate 20
Cleansing, Emulsifying
Polysorbate 20 isn't fungal acne safe.
Learn more about Polysorbate 20 →Caprylyl Glycol
Deodorant, Hair Conditioning, Skin Conditioning, Emollient
Caprylyl Glycol is the diol that conforms to the formula
Learn more about Caprylyl Glycol →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →Hydroxypropyl Cyclodextrin
Fragrance, Skin Conditioning
.beta.-Cyclodextrin, 2-hydroxypropyl ethers
Learn more about Hydroxypropyl Cyclodextrin →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →
Similar Comparisons
Each product against its closest dupes.
- View the comparison

Medik8
Liquid Peptides™

Medik8
Liquid Peptides Advanced MP
- View the comparison

The Ordinary
Multi-Peptide + Copper Peptides 1% Serum

The Ordinary
Multi-Peptide + HA Serum
- View the comparison

Medik8
Liquid Peptides™

Geek & Gorgeous
Power Peptides
- View the comparison

The Ordinary
Multi-Peptide + Copper Peptides 1% Serum

Drunk Elephant
Protini™ Powerpeptide Resurfacing Serum with Lactic Acid