Works for:
based on ingredients and %- Anti-oxidation
- Anti-aging
- Moisturizing
- Evens skin tone
Doesn't work for:
based on ingredients and %- Exfoliation
Can it cause trouble?
- Irritation risk: medium
- Comedogenic risk ingredients: 0
Key actives
Product Summary
"Dermadoctor - Kakadu C 20% Vitamin C Serum with Ferulic Acid & Vitamin E" could be helpful for: Anti-inflammatory, Anti-aging, Moisturizing and Evens skin tone, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- Humectants (sodium hyaluronate 0.05% - 0.15% and glycerin 2.70% - 4.10%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
About the brand
According to Cruelty-Free Kitty "Dermadoctor" is cruelty free and so is its parent company.
Price
The product retails for 76.00$ in the United States and for 76.00£ in the United Kingdom.
For a detailed price comparison: click here.
Anti-oxidation
This product contains antioxidants (ferulic acid) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).
The following ingredients - 3-o-ethyl ascorbic acid, epigallocatechin gallate also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.
A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
A plant extract that might have some anti-oxidant effect in skin, but evidence is lacking
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?
Kakadu C 20% Vitamin C Serum with Ferulic Acid & Vitamin E
Source: From product name
This product contains epigallocatechin gallate, ferulic acid. These ingredients 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.
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
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
Evens skin tone
What does the product description say?
This luxurious, lightweight serum helps brighten skin tone and leaves skin feeling more elastic, softer and firmer.
Source: SkincareRX
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: 3-o-ethyl ascorbic acid, epigallocatechin gallate, ferulic acid.
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
Moisturizing
What does the product description say?
Vitamin E helps to protect, nourish, and hydrate, making it the rejuvenating serum that your skincare stash needs.Cruelty free What is ferulic acid?
Source: Beauty Bay
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, sodium hyaluronate.
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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
Helps preserve products and creates a nice product texture
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 attract water to the upper layer of the skin and can help improve skin barrier function
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
Exfoliation
What does the product description say?
DERMAdoctor KP Duty Dry, Rough, Bumpy Skin Moisturizing Lotion with 10% AHAs + PHAs , 237ml 31,00 £
Source: Beauty Bay
This product does not contain effective exfoliating ingredients. It might be able to deliver physical exfoliation, that is scrub off some of the dead cells on the surface of the skin. We do not recommend physical exfoliation, because it is not uniform (some bits of skin can get exfoliated too much while others not at all). It can also traumatize the skin and aggrevate acne and other skin conditions.
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-oxidation | |
| Anti-aging | |
| Moisturizing | |
| Evens skin tone | |
| Exfoliation |
Total Promises Fulfilled score: 65/100.
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Potential irritants
Comedogenic ingredients
No comedogenic ingredients detected
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Dermadoctor Kakadu C 20% Vitamin C Serum with Ferulic Acid & Vitamin E | Current | $39.99 | |
e.l.f. Cosmetics Bright Icon Brightening Vitamin C Serum + E + Ferulic Acid | 60% | $17.00 | |
Benton Vitamin C Serum | 58% | $23.22 | |
 Formulyst Active Serum – Vitamin B, C, E, Ferulic + Niacinamide | 58% | $80.00 | |
 NourishMax VITAMIN C + B + E + FERULIC & RETINOL SERUM | 58% | $49.00 | |
skinmade Vitamin C E + Alpha Arbutin serum | 57% | $25.49 |
Key Actives
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
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 potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
Helps attract water to the upper layer of the skin and can help improve skin barrier function
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Potential irritants
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties
Can work as an exfoliant but is typically used to adjust the product pH
A plant extract that might have some anti-oxidant effect in skin, but evidence is lacking
Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products
Used to adjust pH of the product and can help improve the product's smell
Helps preserve products and creates a nice product texture
Comedogenic ingredients
We couldn't find any comedogenic ingredients in this product
All ingredients
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
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
Can work as an exfoliant but is typically used to adjust the product pH
A plant extract that might have some anti-oxidant effect in skin, but evidence is lacking
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
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
Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties
Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products
A preservative. It helps prevent bacterial growth in cosmetic products
Used to adjust pH of the product and can help improve the product's smell
A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
Helps preserve products and creates a nice product texture
Helps attract water to the upper layer of the skin and can help improve skin barrier function
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Ingredient list view
Water, 3-o-ethyl ascorbic acid, Ethoxydiglycol, Glycerin, Peg-40 hydrogenated castor oil, Butylene glycol, Citric acid, Terminalia ferdinandiana fruit extract, Epigallocatechin gallate, Tocopherol, Alcohol, Sodium citrate, Phenoxyethanol, Triethanolamine, Ferulic acid, Caprylyl glycol, Ethylhexylglycerin, Disodium edta, Hexylene glycol, Panthenol, Sodium hyaluronate
- Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid, a Cosmetic Tyrosinase Inhibitor
- Glycerol and the skin: holistic approach to its origin and functions
- Amended Safety Assessment of PEGylated Oils as Used in Cosmetics
- The chemotherapeutic potential of Terminalia ferdinandiana: Phytochemistry and bioactivity
- Great green tea ingredient? A narrative literature review on epigallocatechin gallate and its biophysical properties for topical use in dermatology
- Comparative Evaluation of Different Co-Antioxidants on the Photochemical- and Functional-Stability of Epigallocatechin-3-gallate in Topical Creams Exposed to Simulated Sunlight
- Photodegradation of (−)-epigallocatechin-3-gallate in topical cream formulations and its photostabilization
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Ferulic Acid: Therapeutic Potential Through Its Antioxidant Property
- Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin
- Antioxidant Properties of Ferulic Acid and Its Possible Application
- Skin moisturizing effects of panthenol-based formulations
- Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmetics
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care