Works for
Anti-agingCarnosine, Palmitoyl tripeptide-5 + 8 moreWorks well
“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.”
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.
MoisturizingPanthenol, Palmitoyl tripeptide-5 + 19 moreWorks well
“Say 'no' to expression lines and 'yes' to a visibly smooth, plump and hydrated complexion.”
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
Anti-oxidationSide benefit · Carnosine, Dunaliella salina extractWorks well
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).
Can it cause trouble?
Irritancy7 flagged ingredientsLow risk
ComedogenicClean of flagged comedogenic ingredientsNone flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Water~40–60%
Glycerin~4.3–6.4%
- Irritation risk
- Low
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
More about GlycerinButylene glycol~3.5–5.2%
- Irritation risk
- Low
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
More about Butylene glycolInulin~2.7–4%
- Irritation risk
- Low
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
More about InulinSodium hyaluronate~2–3%
- Irritation risk
- Low
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
More about Sodium hyaluronatePanthenol~1.6–2.4%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin and can help improve skin barrier function
More about PanthenolAlpha-glucan oligosaccharide~1.5–2.2%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin
More about Alpha-glucan oligosaccharideCarnosine~1.2–1.8%
- Irritation risk
- Low
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
More about CarnosineCarbomer~1–1.5%
- Irritation risk
- Low
Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations
More about CarbomerPolysorbate 20~0.85–1.25%
Caprylyl glycol~0.5–1.2%
- Irritation risk
- Medium
Helps preserve products and creates a nice product texture
More about Caprylyl glycolPhenoxyethanol~0.4–0.95%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolHydroxypropyl cyclodextrin~0.4–0.9%
- Irritation risk
- Medium
Used to stabilize product formulations and help soften the upper layer of the skin
More about Hydroxypropyl cyclodextrinDunaliella salina extract~0.3–0.75%
- Irritation risk
- 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
More about Dunaliella salina extractEthylhexylglycerin~0.3–0.7%
Citric acid~0.3–0.7%
- Irritation risk
- Medium
Can work as an exfoliant but is typically used to adjust the product pH
More about Citric acidPalmitoyl tripeptide-5~0.2–0.75%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Palmitoyl tripeptide-5Sodium benzoate~0.25–0.5%
Acetyl hexapeptide-8~0.15–0.6%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Acetyl hexapeptide-8Tetrapeptide-21~0.15–0.6%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Tetrapeptide-21Pentapeptide-18~0.15–0.55%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Pentapeptide-18Palmitoyl tripeptide-1~0.15–0.6%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Palmitoyl tripeptide-1Pantolactone~0.1–0.45%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin
More about PantolactonePalmitoyl tripeptide-38~0.1–0.45%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Palmitoyl tripeptide-38Palmitoyl tetrapeptide-7~0.15–0.55%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Palmitoyl tetrapeptide-7Glyceryl caprylate~0.15–0.55%
- Irritation risk
- Low
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
More about Glyceryl caprylateLactic acid/glycolic acid copolymer~0.1–0.4%
- Irritation risk
- Low
Polyvinyl alcohol~0.1–0.4%
Phenylpropanol~0.05–0.25%
- Irritation risk
- High
Helps mask the smell of other ingredients and helps preserve the product formulation
More about PhenylpropanolCopper palmitoyl heptapeptide-14~0.05–0.25%
- Irritation risk
- Low
The copper palmitoyl heptapeptide-14 is a synthetic peptide developed by ingredient supplier Infinitec, which claims that it can increase collagen production in skin when combined with Heptapeptide-15 Palmitate. The complex was tested in vitro (in a lab) and in a clinical test with 30 volunteers, but the latter wasn't placebo-controlled. The manufacturer reported wrinkle reduction after 28 days of use, but the details of the study aren't publicly available.
More about Copper palmitoyl heptapeptide-14Heptapeptide-15 palmitate~0.05–0.2%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Heptapeptide-15 palmitatePotassium sorbate~0.05–0.2%
Xanthan gum~0.05–0.1%
- Irritation risk
- Low
Used to create a thicker product consistency
More about Xanthan gumIngredient 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
Compare prices
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Worth comparing, line by line.
Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.
| Medik8Liquid PeptidesesYOUR PRODUCT | Geek GorgeousPower Peptides Serum | Sanitas SkincarePeptiDerm Firming Serum | NourishMaxMulti Peptide Serum | |
|---|---|---|---|---|
| Match | — | 48% | 39% | 39% |
| Price | — | $16.53 | $174.00 | $49.00 |
| Shared key ingredients | — | 8 of 16 | 6 of 16 | 6 of 16 |
| Key difference | — | Caprylic/Capric Triglyceride | Dipeptide-2 | Acetyl Octapeptide-3 |
| Irritancy | Low | Low | Low | Low |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
More alternatives: PotentLift Advanced Multi Peptide Complex SerumKisocare MATRIXYL 3000 + Argirelox Blended Serum
Product summary
"Medik8 - Liquid Peptideses" is effective for: Anti-aging and Moisturizing
Ingredient callouts
- Peptides (heptapeptide-15 palmitate 0.05% - 0.20%, copper palmitoyl heptapeptide-14 0.05% - 0.25%, palmitoyl tetrapeptide-7 0.15% - 0.55%, palmitoyl tripeptide-38 0.10% - 0.45%, palmitoyl tripeptide-1 0.15% - 0.60%, pentapeptide-18 0.15% - 0.55%, tetrapeptide-21 0.15% - 0.60%, acetyl hexapeptide-8 0.15% - 0.60% and palmitoyl tripeptide-5 0.20% - 0.75%). 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.
- An effective concentration of Panthenol (pro-vitamin B5) - about 1.60% - 2.40%. Panthenol helps strengthen the skin barrier, improve hydration and reduce inflammation in skin.
- Humectants (heptapeptide-15 palmitate 0.05% - 0.20%, copper palmitoyl heptapeptide-14 0.05% - 0.25%, pantolactone 0.10% - 0.45%, acetyl hexapeptide-8 0.15% - 0.60%, carnosine 1.20% - 1.80%, panthenol 1.60% - 2.40%, sodium hyaluronate 2.00% - 3.00% and glycerin 4.30% - 6.40%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 12 studies and safety reviews.
- 1
- 2
- 3Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
- 4
- 5Skin moisturizing effects of panthenol-based formulationspdfs.semanticscholar.org
- 6
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