What's In My Jar
The INKEY List CA Retinol Serum
The INKEY List CA

The INKEY List CA Retinol Serum

Efficacy100/100IrritancyMedium·100% recommend (4 reviews)
See all ingredients

Works for

Anti-blemish
Retinol, Hydroxypinacolone retinoate
Works well
What the product description says
“Plus, its slow-release formula minimises sensitivity while still minimising fine lines, wrinkles, pigmentation and blemishes.”
Source: Cultbeauty

This product can help reduce breakouts and clogged pores because it contains the following ingredient: hydroxypinacolone retinoate, retinol. These ingredients is used for treating acne and can have a noticeable effect.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.1–0.4%
Hydroxypinacolone retinoateHeroEffect: HighA derivative of the most potent form of vitamin A, retinoic acid. The ingredient can be sold under name Granactive Retinoid. Note that if a skincare brand discloses the concentration of Granactive Retinoid in a product, the concentration refers to a diluted form of Hydroxypinacolone Retinoate: 1% of Granactive Retinoid corresponds to 0.1% of Hydroxypinacolone Retinoate. Hydroxypinacolone Retinoate (HPR) is a unique derivative of retinoic acid because it can directly work in the skin and does not require additional conversion steps. According to studies done by the manufacturer on models of human skin (not real people), this derivative is more effective than other cosmetic versions of retinoids (such as retinol, retinaldehyde, and retinyl palmitate), and, at the same time, causes less irritation. It has been also demonstrated to be more stable than retinol which makes formulating with easier and increases the chances that a product with it will maintain its effectiveness after opening. The packaging should still ideally be air-tight. HPR is available over the counter in the EU, UK, Asia, Australia and New Zealand, but is only with a prescription in Canada.~0.05–0.1%
Moisturizing
Palmitoyl tetrapeptide-7, Palmitoyl tripeptide-1 + 11 more
Works well
What the product description says
“That's not all; it's also infused with squalane to intensely hydrate your visage and protect your delicate moisture barrier.”
Source: Cultbeauty

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: glycerin, hyaluronic acid.

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: dimethicone, squalane.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: palmitoyl tetrapeptide-7, palmitoyl tripeptide-1

Palmitoyl tetrapeptide-7Hero· EmollientEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.1–0.35%
Palmitoyl tripeptide-1Hero· EmollientEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.05–0.3%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~3.9–5.9%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~1.8–2.6%
PhospholipidsKey activeEffect: MediumEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~1–1.5%
Caprylic/capric glyceridesKey active· EmollientEffect: MediumHelp soften the upper layer of the skin~0.85–1.3%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~0.55–1.25%
Glycine soja sterolsKey active· EmollientEffect: HighAn emollient that helps soften the skin~0.15–0.55%
Hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.1–0.35%
Butylene glycol· HumectantEffect: LowUsed 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~3.5–5.3%
Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~2.1–3.1%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~1.3–1.9%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.3–0.75%
Anti-aging
Retinol, Hydroxypinacolone retinoate + 4 more
Works well
What the product description says
“Plus, its slow-release formula minimises sensitivity while still minimising fine lines, wrinkles, pigmentation and blemishes.”
Source: Cultbeauty

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains hydroxypinacolone retinoate, retinol.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: palmitoyl tetrapeptide-7, palmitoyl tripeptide-1.

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.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.1–0.4%
Hydroxypinacolone retinoateHeroEffect: HighA derivative of the most potent form of vitamin A, retinoic acid. The ingredient can be sold under name Granactive Retinoid. Note that if a skincare brand discloses the concentration of Granactive Retinoid in a product, the concentration refers to a diluted form of Hydroxypinacolone Retinoate: 1% of Granactive Retinoid corresponds to 0.1% of Hydroxypinacolone Retinoate. Hydroxypinacolone Retinoate (HPR) is a unique derivative of retinoic acid because it can directly work in the skin and does not require additional conversion steps. According to studies done by the manufacturer on models of human skin (not real people), this derivative is more effective than other cosmetic versions of retinoids (such as retinol, retinaldehyde, and retinyl palmitate), and, at the same time, causes less irritation. It has been also demonstrated to be more stable than retinol which makes formulating with easier and increases the chances that a product with it will maintain its effectiveness after opening. The packaging should still ideally be air-tight. HPR is available over the counter in the EU, UK, Asia, Australia and New Zealand, but is only with a prescription in Canada.~0.05–0.1%
Palmitoyl tetrapeptide-7Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.1–0.35%
Palmitoyl tripeptide-1Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.05–0.3%
Hyaluronic acidEffect: LowOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.1–0.35%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.3–0.75%
Evens skin tone
Retinol, Hydroxypinacolone retinoate
Works well
What the product description says
“Plus, its slow-release formula minimises sensitivity while still minimising fine lines, wrinkles, pigmentation and blemishes.”
Source: Cultbeauty

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: hydroxypinacolone retinoate, retinol.

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.1–0.4%
Hydroxypinacolone retinoateHeroEffect: HighA derivative of the most potent form of vitamin A, retinoic acid. The ingredient can be sold under name Granactive Retinoid. Note that if a skincare brand discloses the concentration of Granactive Retinoid in a product, the concentration refers to a diluted form of Hydroxypinacolone Retinoate: 1% of Granactive Retinoid corresponds to 0.1% of Hydroxypinacolone Retinoate. Hydroxypinacolone Retinoate (HPR) is a unique derivative of retinoic acid because it can directly work in the skin and does not require additional conversion steps. According to studies done by the manufacturer on models of human skin (not real people), this derivative is more effective than other cosmetic versions of retinoids (such as retinol, retinaldehyde, and retinyl palmitate), and, at the same time, causes less irritation. It has been also demonstrated to be more stable than retinol which makes formulating with easier and increases the chances that a product with it will maintain its effectiveness after opening. The packaging should still ideally be air-tight. HPR is available over the counter in the EU, UK, Asia, Australia and New Zealand, but is only with a prescription in Canada.~0.05–0.1%
Anti-oxidation
Side benefit · Retinol, Tocopheryl acetate + 1 more
Works well

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

RetinolKey activeEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating~0.1–0.4%
Tocopheryl acetateEffect: Low, below effective doseA 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.~0.2–0.75%
TocopherolUnder-dosedPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.3–0.75%

Can it cause trouble?

Irritancy
2 strong irritants: Hydroxypinacolone retinoate, Retinol
Medium risk
We flagged 9 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Hydroxypinacolone retinoateA derivative of the most potent form of vitamin A, retinoic acid. The ingredient can be sold under name Granactive Retinoid. Note that if a skincare brand discloses the concentration of Granactive Retinoid in a product, the concentration refers to a diluted form of Hydroxypinacolone Retinoate: 1% of Granactive Retinoid corresponds to 0.1% of Hydroxypinacolone Retinoate. Hydroxypinacolone Retinoate (HPR) is a unique derivative of retinoic acid because it can directly work in the skin and does not require additional conversion steps. According to studies done by the manufacturer on models of human skin (not real people), this derivative is more effective than other cosmetic versions of retinoids (such as retinol, retinaldehyde, and retinyl palmitate), and, at the same time, causes less irritation. It has been also demonstrated to be more stable than retinol which makes formulating with easier and increases the chances that a product with it will maintain its effectiveness after opening. The packaging should still ideally be air-tight. HPR is available over the counter in the EU, UK, Asia, Australia and New Zealand, but is only with a prescription in Canada.High~0.05–0.1%est.
RetinolTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritatingHigh~0.1–0.4%est.
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymerA gelling agent that thickens the product consistency and leaves the skin with a velvety finishMedium~1.4–2.1%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~1.3–1.9%est.
Polysorbate 60Helps oil and water mix togetherMedium~0.3–0.75%est.
Tocopheryl acetateA 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.Medium~0.2–0.75%est.
Disodium edtaStabilizes the product formulationMedium~0.15–0.55%est.
Leuconostoc/radish root ferment filtrateA preservative that comes from radishes fermented by a bacteria. New research suggests that the preservation properties in the ingredient come from an ammonium salt that is not present naturally in radish root but used in its cultivation. Is problematic because the exact amount of the preservative agents is difficult to determineMedium~0.1–0.45%est.
Peg-40 hydrogenated castor oilHelps oil and water mix togetherMedium~0.1–0.45%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
Alternatives
Cheaper, or higher on efficacy
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User reviews

Would you recommend?
100%·yes

4 of 4 community members would buy it again.

100% would0% wouldn't
  • Inkluva1· Dec 2023Recommends

    I like this product it's not too thick and it absorbs quickly into skin. I like this formula quite a bit.

  • Skinaddict· Oct 2022Recommends

    I wanted to get into retinoids for my acne and hyperpigmentation and this was the first product I tried (at 18). This is probably good for anti aging but it didn't do much for for blemishes and hyperpigmentation. I didn't notice any irritation. I was using it for around 4 months and the only change I saw was in my texture, that had very slightly improved. I know that retinoids can take up to six months to work but I couldn't wait that long and not be sure if I will see the change (since retinol is the weakest retinoid and the concentration in this is very low), so I switched to epiduo (which contains adapalene). I think that the usage of retinol prior to adapalene helped me notice results a lot quicker.

    So, all in all, I would recommend this product to those who are new to retinoids and have never used retinol/retinal/adapalene/tretinoin before, but only as a starter

What reviewers noticed
Marker shows the average response

Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~3.9–5.9%
Key active
Irritation risk
Low
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

More about Glycerin
Butylene glycol~3.5–5.3%
Formula
Irritation risk
Low
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

More about Butylene glycol
Propanediol~2.7–4%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Dicaprylyl carbonate~2.1–3.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate
Dimethicone~1.8–2.6%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer~1.4–2.1%
Irritant · medium
Irritation risk
Medium

A gelling agent that thickens the product consistency and leaves the skin with a velvety finish

More about Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer
Caprylyl glycol~1.3–1.9%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Phospholipids~1–1.5%
Key active
Irritation risk
Low
Works for
Moisturizing

Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product

More about Phospholipids
Caprylic/capric glycerides~0.85–1.3%
Key active
Irritation risk
Low
Works for
CleansingMoisturizing

Help soften the upper layer of the skin

More about Caprylic/capric glycerides
Squalane~0.55–1.25%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Dimethyl isosorbide~0.4–1%
Formula
Irritation risk
Low

Used to dissolve other ingredients in a product and can enhance their ability to penetrate the skin

More about Dimethyl isosorbide
Glycine soja extract~0.35–0.85%
Formula
Irritation risk
Low
More about Glycine soja extract
Carbomer~0.35–0.8%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Sodium ascorbate~0.3–0.75%
Formula
Irritation risk
Low
More about Sodium ascorbate
Tocopherol~0.3–0.75%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Polysorbate 60~0.3–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 60
Tocopheryl acetate~0.2–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

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 acetate
Glycolipids~0.15–0.65%
Formula
Irritation risk
Low
More about Glycolipids
Sodium hydroxide~0.15–0.6%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Disodium edta~0.15–0.55%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Hydroxypinacolone retinoate~0.05–0.1%
Hero · Anti-aging, Evens skin tone, Anti-blemishIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-blemishAnti-agingExfoliation

A derivative of the most potent form of vitamin A, retinoic acid. The ingredient can be sold under name Granactive Retinoid. Note that if a skincare brand discloses the concentration of Granactive Retinoid in a product, the concentration refers to a diluted form of Hydroxypinacolone Retinoate: 1% of Granactive Retinoid corresponds to 0.1% of Hydroxypinacolone Retinoate. Hydroxypinacolone Retinoate (HPR) is a unique derivative of retinoic acid because it can directly work in the skin and does not require additional conversion steps. According to studies done by the manufacturer on models of human skin (not real people), this derivative is more effective than other cosmetic versions of retinoids (such as retinol, retinaldehyde, and retinyl palmitate), and, at the same time, causes less irritation. It has been also demonstrated to be more stable than retinol which makes formulating with easier and increases the chances that a product with it will maintain its effectiveness after opening. The packaging should still ideally be air-tight. HPR is available over the counter in the EU, UK, Asia, Australia and New Zealand, but is only with a prescription in Canada.

More about Hydroxypinacolone retinoate
Retinol~0.1–0.4%
Hero · Anti-aging, Evens skin tone, Anti-blemishIrritant · high
Irritation risk
High
Works for
Anti-agingEvens skin toneAnti-blemishMattifyingExfoliationAnti-oxidation

Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating

More about Retinol
Glycine soja sterols~0.15–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin

More about Glycine soja sterols
Leuconostoc/radish root ferment filtrate~0.1–0.45%
Irritant · medium
Irritation risk
Medium

A preservative that comes from radishes fermented by a bacteria. New research suggests that the preservation properties in the ingredient come from an ammonium salt that is not present naturally in radish root but used in its cultivation. Is problematic because the exact amount of the preservative agents is difficult to determine

More about Leuconostoc/radish root ferment filtrate
Peg-40 hydrogenated castor oil~0.1–0.45%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-40 hydrogenated castor oil
Hyaluronic acid~0.1–0.35%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-aging

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation

More about Hyaluronic acid
Polysorbate 20~0.1–0.35%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Palmitoyl tetrapeptide-7~0.1–0.35%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

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

More about Palmitoyl tetrapeptide-7
Palmitoyl tripeptide-1~0.05–0.3%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

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

More about Palmitoyl tripeptide-1
Phenoxyethanol~0.05–0.2%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Ingredient list view

Water, Glycerin, Butylene glycol, Propanediol, Dicaprylyl carbonate, Dimethicone, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Caprylyl glycol, Phospholipids, Caprylic/capric glycerides, Squalane, Dimethyl isosorbide, Glycine soja extract, Carbomer, Sodium ascorbate, Tocopherol, Polysorbate 60, Tocopheryl acetate, Glycolipids, Sodium hydroxide, Disodium edta, Hydroxypinacolone retinoate, Retinol, Glycine soja sterols, Leuconostoc/radish root ferment filtrate, Peg-40 hydrogenated castor oil, Hyaluronic acid, Polysorbate 20, Palmitoyl tetrapeptide-7, Palmitoyl tripeptide-1, Phenoxyethanol

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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.

Side-by-side comparison of this product against its closest alternatives
The INKEY List CARetinol SerumYOUR PRODUCTIOPEExpert Retinol RX 2% Reti-Jection Serum for WrinklesZelensPower A Retexturising and Renewing SerumBoost LabRetinol Night Renewal Serum
Match—75%73%71%
Price—$54.47$57.62$16.52
Shared key ingredients—5 of 105 of 103 of 10
Key difference—NiacinamideRetinyl LinoleateBisabolol
Irritancy Medium Medium Medium Medium
Drying alcohol————
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Product summary

"The INKEY List CA - Retinol Serum" is effective for: Anti-aging, Evens skin tone, Anti-blemish and Moisturizing

Ingredient callouts

  • this product contains an effective form of Retinoids (vitamin A): retinol 0.10% - 0.40% and hydroxypinacolone retinoate 0.05% - 0.10%. Retinoids are potent multitasking actives. They work to improve and prevent early signs of aging, reduce hyperpigmentation (age spots and post-acne marks), and prevent inflamed blemishes and clogged pores. The downside of Retinoids is that they can be irritating. If you are not already using a Retinoid in your routine, it is best to start slowly and apply the Retinoid product only a few times per week. If your skin tolerates it well, you can gradually increase the frequency to daily.
  • Peptides (palmitoyl tripeptide-1 0.05% - 0.30% and palmitoyl tetrapeptide-7 0.10% - 0.35%). 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.
  • Humectants (hyaluronic acid 0.10% - 0.35% and glycerin 3.90% - 5.90%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

What our users say

Based on 4 reviews 100% recommend this product
  • When it comes to comedogenicity, all of the reviewers (4) say that it does not clog pores.
  • When it comes to using this sunscreen under makeup, two out of two reviewers report that the product does not pill under makeup.
They find the product's texture to be light - heavy and In terms of the smell, our users report that light fragrance.

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 21.50CA$ in Canada, from 10.50£ up to 14.00£ in the United Kingdom, from 10.99$ up to 16.00$ in the United States, for 15.00A$ in Australia and for 120.00HK$ in Hong Kong.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 14 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Dimethicone as a protective ingredient in topical medicationsjaad.org
  3. 3
    Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
  4. 4
    Activity enhancement of ferulic acid with dimethyl isosorbride in cosmetic compositionspatents.google.com
  5. 5
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The INKEY List CA Retinol Serum
The INKEY List CARetinol Serum
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