The INKEY List CA Peptide Moisturiser
Works for
2 of 2 advertised claims delivered
Moisturizing10 ingredients credited for this claimStrong support
“A fast-absorbing, peptide moisturizer for dry skin”
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:
betaine, 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: caprylic/capric triglyceride, c12-15 alkyl benzoate.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl hexapeptide-37
Anti-aging3 ingredients credited for this claimModerate support
“helps reduce the look of fine lines and wrinkles”
This product contains acetyl hexapeptide-37. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.
Can it cause trouble?
Irritancy7 flagged ingredientsLow risk
Comedogenic3 ingredients rated 2 or more on the 0–5 pore-clogging scale3 flagged
User reviews
Ingredients
Filter by role to see what each ingredient is doing.
Water~40–60%
Caprylic/capric triglyceride~6.1–9.2%
- Irritation risk
- Medium
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
More about Caprylic/capric triglycerideGlycerin~3.6–5.4%
- 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 GlycerinC12-15 alkyl benzoate~2.9–4.3%
- Irritation risk
- Low
Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth
More about C12-15 alkyl benzoateCetearyl alcohol~2.2–3.2%
- Irritation risk
- Low
- Comedogenicity
- 2/5
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
More about Cetearyl alcoholGlyceryl stearate se~1.8–2.7%
- Irritation risk
- Low
- Comedogenicity
- 2/5
Used to stabilize the product formulations and works as an emollient
More about Glyceryl stearate seBetaine~1.4–2.2%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin and improves the product texture
More about BetaineButylene glycol~1.3–2%
- 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 glycolPhenoxyethanol~0.5–1%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolBenzyl alcohol~0.5–1%
- Irritation risk
- High
A preservative. Can be used to mask unpleasant smell. Can be irritating
More about Benzyl alcoholCarbomer~0.5–1.2%
- 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 CarbomerButyrospermum parkii butter~0.5–1.15%
- Irritation risk
- Low
- Comedogenicity
- 3/5
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
More about Butyrospermum parkii butterSodium stearoyl glutamate~0.45–1.05%
- Irritation risk
- Medium
Helps oil and water mix together
More about Sodium stearoyl glutamateSodium hydroxide~0.35–0.8%
Ethylhexylglycerin~0.2–0.75%
Sodium gluconate~0.15–0.65%
Tocopheryl acetate~0.15–0.6%
- Irritation risk
- Medium
A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.
More about Tocopheryl acetateDehydroacetic acid~0.1–0.4%
Hydrogenated lecithin~0.1–0.4%
- Irritation risk
- Low
Helps to retain moisture by creating a protective barrier on the skin. Rich in fatty acids. Improves product texture and helps with the penetration of other ingredients.
More about Hydrogenated lecithinPhenethyl alcohol~0.1–0.35%
Acetyl hexapeptide-37~0.05–0.3%
- 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-37Maltodextrin~0.05–0.25%
- Irritation risk
- Low
Used to stabilize the product formulation and can help absorb oil
More about MaltodextrinPentapeptide-48~0.05–0.2%
- Irritation risk
- Low
A type of peptide, sold under the brand name Royal Epigen P5. It consists five different amino-acids: arginine, glutamic acid, leucine, serine and threonine. It helps attract water to the upper layer of the skin and might have anti-aging benefits. One of the manufacturers discloses that creation of this peptide was inspired by a protein found in royal jelly. There is no evidence that this is in any way relevant to this ingredient's benefit for human skin. There are no clinical trials available for this ingredient. There is also no lab tests methodology and results disclosed for it. It is not clear if this peptide has an actual anti-aging or would healing properties when applied topically to human skin. The ingredient manufacturer recommends to include it in formulations at 2-3%.
More about Pentapeptide-48Ingredient list view
Water, Caprylic/capric triglyceride, Glycerin, C12-15 alkyl benzoate, Cetearyl alcohol, Glyceryl stearate se, Betaine, Butylene glycol, Phenoxyethanol, Benzyl alcohol, Carbomer, Butyrospermum parkii butter, Sodium stearoyl glutamate, Sodium hydroxide, Ethylhexylglycerin, Sodium gluconate, Tocopheryl acetate, Dehydroacetic acid, Hydrogenated lecithin, Phenethyl alcohol, Acetyl hexapeptide-37, Maltodextrin, Pentapeptide-48
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Product summary
Judging from the ingredient list, "The INKEY List CA - Peptide Moisturiser" works well for improving skin hydration To work well, any moisturizer needs to include a combination of water-binding and emollient ingredients. The INKEY List CA - Peptide Moisturiser ticks this box. Betaine, glycerin and butylene glycol in this product (humectants) attract water molecules to the upper layer of the skin (the water comes from the outside air or from the deeper layers of the skin if the air is dry). Caprylic/capric triglyceride, c12-15 alkyl benzoate and cetearyl alcohol in this product help decrease the water evoporation from the skin, so that it stays hydrated for longer. These ingredients also soften the skin and take away the feeling of tightness and dryness.
Ingredient callouts
- We like that this moisturizer contains peptides (acetyl hexapeptide-37 0.05% - 0.30%). 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. Peptides 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.
Irritation risk
This formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of this moisturizer to be low. For a detailed overview of all potential irritants: click here
You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.
What our users say
Based on 1 review 0% recommend this product- When it comes to comedogenicity, the reviewer found that it does not clog pores.
About the brand
According to Cruelty-Free Kitty "The INKEY List CA" is cruelty free and so is its parent company.
Price
The product retails for 18.99CA$ in Canada, from 12.40£ up to 16.00£ in the United Kingdom and from 14.99$ up to 18.00$ in the United States.
For a detailed price comparison: click here.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 5 studies and safety reviews.
- 1
- 2
- 3Final Report on the Safety Assessment of Phenethyl Alcoholsemanticscholar.org
- 4The Power of Royalactinmibellebiochemistry.com
- 5RoyalEpigen P5cosmeticinnovation.com.br
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