Peptides (palmitoyl tripeptide-5 0.20% - 0.75%, palmitoyl tripeptide-38 0.10% - 0.45%, palmitoyl tripeptide-1 0.15% - 0.60%, palmitoyl tetrapeptide-7 0.15% - 0.55%, heptapeptide-15 palmitate 0.05% - 0.20%, copper palmitoyl heptapeptide-14 0.05% - 0.25%, tetrapeptide-21 0.15% - 0.60%, pentapeptide-18 0.15% - 0.55% and acetyl hexapeptide-8 0.15% - 0.60%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. They might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
Panthenol (pro-vitamin B5) at about 1.60% - 2.40% concentration. In this concentration, Panthenol works effectively to improve the skin barrier and reduce inflammation.
Humectants (pantolactone 0.10% - 0.45%, panthenol 1.60% - 2.40%, heptapeptide-15 palmitate 0.05% - 0.20%, glycerin 4.30% - 6.40%, copper palmitoyl heptapeptide-14 0.05% - 0.25%, sodium hyaluronate 2.00% - 3.00%, carnosine 1.20% - 1.80% and acetyl hexapeptide-8 0.15% - 0.60%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails from 62.00$ up to 66.00$ in the United States, for 105.10A$ in Australia, for 73.80CA$ in Canada and from 49.00£ up to 64.00£ in the United Kingdom.

For a detailed price comparison: click here.

What can the product work for?

Anti-aging

What does the product description say?

Carnosine protects from glycation-based skin ageing while hyaluronic deeply hydrates, as prebiotics rebalance the skin's natural microbiome. UK200030057

Source: SpaceNK

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains heptapeptide-15 palmitate.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: acetyl hexapeptide-8, carnosine, copper palmitoyl heptapeptide-14, palmitoyl tetrapeptide-7, palmitoyl tripeptide-1, palmitoyl tripeptide-38, palmitoyl tripeptide-5, pentapeptide-18, tetrapeptide-21.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

heptapeptide-15 palmitate 0.05% - 0.2%

Irritation risk:

Concentration: Effectiveness: HIGH

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

tetrapeptide-21 0.15% - 0.6%

Irritation risk:

Concentration: Effectiveness: MEDIUM

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

palmitoyl tripeptide-38 0.1% - 0.45%

Irritation risk:

Concentration: Effectiveness: MEDIUM

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

Moisturizing

What does the product description say?

Carnosine protects from glycation-based skin ageing while hyaluronic deeply hydrates, as prebiotics rebalance the skin's natural microbiome. UK200030057

Source: SpaceNK

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: carnosine, glycerin.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: palmitoyl tetrapeptide-7, palmitoyl tripeptide-1.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl hexapeptide-8, copper palmitoyl heptapeptide-14, heptapeptide-15 palmitate, palmitoyl tetrapeptide-7, palmitoyl tripeptide-1, palmitoyl tripeptide-38, palmitoyl tripeptide-5, panthenol, pentapeptide-18, tetrapeptide-21

inulin 2.7% - 4%

Irritation risk:

Concentration: Effectiveness: HIGH

Helps attract water to the upper layer of the skin. Is claimed to support the growth of "good" bacteria in skin (as a "prebiotic"), but the research is lacking

palmitoyl tetrapeptide-7 0.15% - 0.55%

Irritation risk:

Concentration: Effectiveness: HIGH

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

palmitoyl tripeptide-1 0.15% - 0.6%

Irritation risk:

Concentration: Effectiveness: HIGH

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

Anti-oxidation

This product contains antioxidants (carnosine) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

carnosine 1.2% - 1.8%

Irritation risk:

Concentration: Effectiveness: HIGH

A type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage

dunaliella salina extract 0.3% - 0.75%

Irritation risk:

Concentration: Effectiveness: LOW

A green micro-algae extract that might help neutralize free radicals in skin, but solid evidence is lacking. It helps to soften the upper layer of the skin

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Ingredients & concentrations

All ingredients

Key Actives

panthenol 1.6% - 2.4%

Irritation risk:

Works for: Moisturizing, Reduces redness, Reduces irritation

Helps attract water to the upper layer of the skin and can help improve skin barrier function

carnosine 1.2% - 1.8%

Irritation risk:

Works for: Anti-oxidation, Moisturizing, Anti-aging

A type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage

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Potential irritants

phenylpropanol 0.05% - 0.25%

Irritation risk:

Helps mask the smell of other ingredients and helps preserve the product formulation

caprylyl glycol 0.5% - 1.2%

Irritation risk:

Works for: Moisturizing

Helps preserve products and creates a nice product texture

Comodogenic ingredients

We couldn't find any comodogenic ingredients in this product

All ingredients

water 40% - 60%

Irritation risk:

Plain old water

glycerin 4.3% - 6.4%

Irritation risk:

Works for: Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

butylene glycol 3.5% - 5.2%

Irritation risk:

Works for: Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

Ingredient list view

Water, Glycerin, Butylene glycol, Inulin, Sodium hyaluronate, Panthenol, Alpha-glucan oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl glycol, Phenoxyethanol, Hydroxypropyl cyclodextrin, Dunaliella salina 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

	Medik8 - Liquid Peptides	Geek & Gorgeous 101 - Power Peptides	Sanitas - PeptiDerm Firming Serum	Thrive Causemetics - Timeless Ambition™ Power 10-Peptide Sculpting Serum	Formulyst - Anti-Wrinkle Peptide Serum	PotentLift - Advanced Multi Peptide Complex Serum	NourishMax - Multi Peptide Serum	Nulastin - SKIN Intensive Hydrating Serum with Elastaplex	ClarityRx - Get Fit™ Multi-Peptide Healthy Skin Serum	SKIN 1004. - Madagascar Centella Poremizing Fresh Ampoule	Vegreen - Fragrance-FreeNature Mucin Serum
Price
WIMJ similarity score		48%	39%	39%	39%	39%	39%	38%	37%	36%	36%
Key ingredients	copper palmitoyl heptapeptide-14 pentapeptide-18 +14 more	Common: copper palmitoyl heptapeptide-14 heptapeptide-15 palmitate +6 more Other: caprylic/capric triglyceride saccharide isomerate +1 more	Common: pentapeptide-18 acetyl hexapeptide-8 +4 more Other: dipeptide-2 acetyl octapeptide-3 +4 more	Common: palmitoyl tetrapeptide-7 palmitoyl tripeptide-1 +5 more Other: acetyl hexapeptide-1 tripeptide-1 +6 more	Common: pentapeptide-18 palmitoyl tripeptide-1 +4 more Other: acetyl octapeptide-3 dipeptide diaminobutyroyl benzylamide diacetate +1 more	Common: pentapeptide-18 palmitoyl tripeptide-1 +4 more Other: acetyl octapeptide-3 dipeptide diaminobutyroyl benzylamide diacetate +1 more	Common: pentapeptide-18 palmitoyl tripeptide-1 +4 more Other: acetyl octapeptide-3 dipeptide diaminobutyroyl benzylamide diacetate +1 more	Common: acetyl hexapeptide-8 palmitoyl tetrapeptide-7 +4 more Other: cysteine tocopherol	Common: pentapeptide-18 palmitoyl tripeptide-1 +4 more Other: acetyl octapeptide-3 dipeptide diaminobutyroyl benzylamide diacetate +1 more	Common: acetyl hexapeptide-8 palmitoyl tetrapeptide-7 +4 more Other: copper tripeptide-1 acetyl octapeptide-3 +8 more	Common: acetyl hexapeptide-8 palmitoyl tetrapeptide-7 +3 more Other: copper tripeptide-1 niacinamide +4 more
Irritancy	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW
Potential Irritants	phenylpropanol Has skin benefit? potassium sorbate Has skin benefit? +5 more	ethylhexylglycerin Has skin benefit? sodium citrate Has skin benefit? +9 more	hesperidin methyl chalcone Has skin benefit? hexylene glycol Has skin benefit? +9 more	ethylhexylglycerin Has skin benefit? caprylhydroxamic acid Has skin benefit? +5 more	propylene glycol Has skin benefit? ethylhexylglycerin Has skin benefit? +3 more	propylene glycol Has skin benefit? disodium edta Has skin benefit? +4 more	propylene glycol Has skin benefit? disodium edta Has skin benefit? +4 more	coco-glucoside Has skin benefit? caprylyl glycol Has skin benefit? +2 more	caprylyl glycol Has skin benefit? potassium sorbate Has skin benefit? +1 more	chamomilla recutita flower extract Has skin benefit? disodium edta Has skin benefit? +5 more	ethylhexylglycerin Has skin benefit? caprylic/capric triglyceride Has skin benefit? +2 more
All ingredients	water Has skin benefit? glycerin Has skin benefit? +31 more	water Has skin benefit? glycerin Has skin benefit? +31 more	water Has skin benefit? glycerin Has skin benefit? +34 more	water Has skin benefit? glycerin Has skin benefit? +30 more	water Has skin benefit? glycerin Has skin benefit? +16 more	water Has skin benefit? glycerin Has skin benefit? +17 more	water Has skin benefit? glycerin Has skin benefit? +17 more	water Has skin benefit? glycerin Has skin benefit? +20 more	water Has skin benefit? glycerin Has skin benefit? +16 more	centella asiatica extract Has skin benefit? water Has skin benefit? +30 more	dioscorea villosa root extract Has skin benefit? water Has skin benefit? +18 more

PRODUCT REVIEW

Medik8 Liquid Peptides

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Can it cause trouble?

Key actives

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Price

What can the product work for?

Works for

Anti-aging

What does the product description say?

Moisturizing

What does the product description say?

Anti-oxidation

Honesty check

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Ingredients & concentrations

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Key Actives

Potential irritants

Comodogenic ingredients

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Ingredient list view

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