Works for:
based on ingredients and %- Moisturizing
- Anti-aging
- Anti-oxidation
Can it cause trouble?
- Irritation risk: medium
- Comedogenic risk ingredients: 1
Key actives
Product Summary
Based on the ingredients included, "Credentials - Replenish System Eye Nourisher" works well for moisturizing the skin. To work well, any moisturizer needs to include a combination of water-binding and emollient ingredients. Credentials - Replenish System Eye Nourisher ticks this box. Urea, cyclomethicone, sodium hyaluronate, sodium pca and soluble collagen 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). Emollients in this formulation (cetyl dimethicone, cyclomethicone, beeswax, cera alba and squalane) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.
Ingredient callouts
- This product also contains vitamin C (Ascorbic Acid). It can be an effective active for anti-aging and evening out the skin tone, but in this moisturizer it is used for stabilizing other ingredients in the formulation. In this concentration (0.25% - 0.45%) it cannot have a noticeable benefit for the skin.
- This moisturizer includes a form of retinoids (vitamin A) - retinyl palmitate 0.20% - 0.40%, but this type of vitamin A is not very effective. It could in theory help with fine lines and wrinkles, but the effect is most likely minimal.
Irritation risk
There are some common irritants in this product, including ingredients that do not have benefits for the skin. We assess the overall irritancy of this moisturizer to be medium. 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.
Works for
Anti-oxidation
This product contains antioxidants (ubiquinone) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).
Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen
A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals
Helps attract water to the upper layer of the skin
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
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
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.
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
Moisturizing
What does the product description say?
Credentials Replenish System Eye Nourisher is formulated to hydrate, renew and improve elasticity around the skin under the eyes.
Source: Dermstore
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:
cyclomethicone, sodium hyaluronate.
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: beeswax, cera alba.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: urea
A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
Helps attract water to the upper layer of the skin
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
Sugar extract that helps attract water to the upper layer of the skin
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Naturally present in skin and helps to attract water to its upper layer
A typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin
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.
A type of silicone. Helps soften the upper layer of the skin and creates a nice, light product texture
A sugar that attracts water to the upper layer of the skin
Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen
Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations
An emollient that helps soften the skin and create a nice product texture
An emollient that helps create a nice silky finish on the skin
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
Helps soften the upper layer of the skin and create a nice product consistency
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
Anti-aging
What does the product description say?
Credentials Replenish System Eye Nourisher is formulated to hydrate, renew and improve elasticity around the skin under the eyes.
Source: Dermstore
This product contains ubiquinone. This ingredient help neutralize free radicals in skin. By doing so, they might be able to prevent early signs of aging (like fine lines and wrinkles), at least to some extent. These ingredients will not be able to "reverse" signs of aging.
Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect
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
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Moisturizing | |
| Anti-aging |
Total Promises Fulfilled score: 87/100.
Potential irritants
Comedogenic ingredients
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Key Actives
Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect
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
Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
Helps attract water to the upper layer of the skin
Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations
A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer
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.
A type of silicone. Helps soften the upper layer of the skin and creates a nice, light product texture
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
Sugar extract that helps attract water to the upper layer of the skin
Naturally present in skin and helps to attract water to its upper layer
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
A sugar that attracts water to the upper layer of the skin
A typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin
Potential irritants
A plant extract that one one hand, can contain compounds that can help calm down skin irritation, but, on the other hand, its other compounds (especially fragrant ones) can themselves be irritating
Oil of a very fragrant pink rose used as fragrance in cosmetics. Extensive research has shown it has mixed benefits. In the pro column, inhaling this flower’s scent seems to have relaxing properties and the plant’s petals contain skin-soothing and antioxidant compounds that can benefit skin. On the flipside, the numerous chemicals that create this rose’s distinctive fragrance pose a risk of causing skin aggravation.
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
Helps soften the upper layer of the skin and create a nice product consistency
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals
Helps attract water to the upper layer of the skin
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.
Comedogenic ingredients
An emollient that helps soften the skin and create a nice product texture
All ingredients
A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer
An emollient that helps soften the skin and create a nice product texture
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.
A type of silicone. Helps soften the upper layer of the skin and creates a nice, light product texture
Helps soften the upper layer of the skin and create a nice product consistency
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
A plant extract that one one hand, can contain compounds that can help calm down skin irritation, but, on the other hand, its other compounds (especially fragrant ones) can themselves be irritating
A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals
Oil of a very fragrant pink rose used as fragrance in cosmetics. Extensive research has shown it has mixed benefits. In the pro column, inhaling this flower’s scent seems to have relaxing properties and the plant’s petals contain skin-soothing and antioxidant compounds that can benefit skin. On the flipside, the numerous chemicals that create this rose’s distinctive fragrance pose a risk of causing skin aggravation.
Sugar extract that helps attract water to the upper layer of the skin
Helps attract water to the upper layer of the skin
An emollient that helps create a nice silky finish on the skin
Naturally present in skin and helps to attract water to its upper layer
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect
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
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.
Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen
A typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin
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
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
A preservative. It helps prevent bacterial growth in cosmetic products
Ingredient list view
Water, Cyclomethicone, Ethylhexyl palmitate, Neopentyl glycol dicaprylate/dicaprate, Squalane, Polyglyceryl-4 isostearate, Cetyl dimethicone, Unknown, Hexyl laurate, Cera alba, Beeswax, Magnesium ascorbyl phosphate, Anthemis nobilis flower extract, Glycyrrhiza glabra root extract, Rosa damascena extract, Saccharum officinarum extract, Unknown, Malus domestica fruit extract, Ppg-12/smdi copolymer, Polyquaternium-51, Sodium pca, Sodium hyaluronate, Trehalose, Urea, Ascorbic acid, Chitosan ascorbate, Retinyl palmitate, Tocopherol, Tocopheryl acetate, Ubiquinone, Hydrolyzed elastin, Soluble collagen, Butylene glycol, Propylene glycol, Magnesium sulfate, Bht, Methylparaben, Phenoxyethanol, Tetrasodium edta
- Efficacy of barrier creams in comparison to skin care products in dental laboratory technicians--a controlled trial
- Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
- Topical L-ascorbic acid: percutaneous absorption studies
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Topical urea in skincare: A review