Dermadoctor - KP Duty Dry, Rough, Bumpy Skin Therapy with 10% AHAs + PHAs

Dermadoctor KP Duty Dry, Rough, Bumpy Skin Therapy with 10% AHAs + PHAs

WORKS FOR
  • Anti-aging
  • Anti-oxidation
  • Exfoliation
  • Moisturizing
  • Evens skin tone
  • +2 more
KEY INGREDIENTS
  • lactic acid
  • glycolic acid
  • gluconolactone
  • lactobionic acid
  • caprooyl phytosphingosine
  • ceramide ap
  • ceramide eop
  • ceramide eos
  • ceramide np
  • ceramide ns
  • urea
  • butyrospermum parkii butter
  • c12-15 alkyl benzoate
  • camellia sinensis leaf extract
  • caprylic/capric triglyceride
  • cetyl alcohol
  • cholesterol
  • glycerin
  • squalene
  • superoxide dismutase
  • theobroma grandiflorum seed butter
  • tocopherol
  • +19 more
PROMISES
FULFILLED
100 /100
IRRITANCY
MEDIUM
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Where to buy?

In stock $38.00
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Price as of 8/7/2021 2:11 GMT. More info
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Formula review

See a mistake?
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What does the product description say?
"Incomparable PHA chemically exfoliates, offers anti-aging antioxidant benefits and is a mega-moisturizing humectant able to hold 4x its weight in water compared to hyaluronic acid ."
WIMJ summary

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains gluconolactone, glycolic acid, lactobionic acid.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: lactic acid.

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.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
WIMJ summary

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: gluconolactone, glycolic acid, lactic acid, lactobionic acid

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: glycyrrhiza glabra root extract.

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.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
Promise
What does the product description say?
"KP Duty Dry, Rough, Bumpy Skin Therapy with 10% AHAs + PHAs"
From product name
WIMJ summary

This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: gluconolactone, glycolic acid, lactic acid, lactobionic acid.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
Promise
What does the product description say?
"While 8 essential ceramides and skin lipids and soothing botanicals protect and replenish dry, sensitive, challenged skin."
WIMJ summary

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, lactic 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: caprylic/capric triglyceride, squalene.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: caprooyl phytosphingosine, ceramide ap, ceramide eop, ceramide eos, ceramide np, ceramide ns, lactobionic acid, urea

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
WIMJ summary

This product contains antioxidants (lactobionic acid, superoxide dismutase) 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 - gluconolactone, squalene also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
MEDIUM
meets threshold

Potential irritants

IRRITANCY
MEDIUM

Ingredients by volume

Ingredient Estimated concentration
Plain old water
45% - 55%
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
5% - 6.1%
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
4.4% - 5.4%
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
3.5% - 4.3%
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiom)
2.7% - 3.3%
Helps attract water to the upper layer of the skin and improves the product texture
2.2% - 2.7%
Helps water and oil mix together
1.8% - 2.2%
Helps oil and water mix togehter and creates a nice product texture
1.6% - 1.9%
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
1.4% - 1.7%
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
1.1% - 1.4%
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
0.8% - 1.2%
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
0.8% - 1.2%
Used to adjust the product's pH
0.7% - 1.05%
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
0.65% - 1%
A plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effect
0.6% - 0.9%
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
0.65% - 1%
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
0.6% - 0.9%
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
0.55% - 0.8%
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
0.55% - 0.8%
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
0.5% - 0.7%
The ingredient is not recognized
TBC
A component of ceramides. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
0.5% - 0.75%
Helps soften the upper layer of the skin and might as well help to attract moisture to its upper layer
0.45% - 0.65%
An emollient that is naturally found in skin
0.5% - 0.75%
An oil that is naturally part of skin sebum that helps to soften its upper layer, reduce water loss and neutralize free radicals. It might be comedogenic. Avoid applying large concentrations (or pure oil) before sun exposure as oxidized squalene can clog pores and lead to skin irritation. Today squalene is mostly derived from vegetable oils or synthetized by yeast
0.45% - 0.7%
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
0.45% - 0.65%
A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals
0.4% - 0.6%
0.45% - 0.65%
The ingredient is not recognized
TBC
An antioxidant enzyme that is naturally present in skin. It can help support skin barrier function and reduce inflammation in skin. It is used in topical medications for inflammatory skin conditions including atopic dermatitis (eczema) and psoriasis. There are three types of natural Superoxide Dismutase in human skin. The compound used in topical treatments and cosmetics are mimics of typically one of these natural variants
0.35% - 0.65%
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
0.3% - 0.55%
Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.
0.25% - 0.5%
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
0.3% - 0.6%
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin
0.25% - 0.5%
Used to create a thicker product consistency
0.3% - 0.5%
Helps oil and water mix together
0.3% - 0.55%
A gelling agent that thickens the product consistency and leaves the skin with a velvety finish
0.25% - 0.45%
A preservative
0.2% - 0.4%
Used to thicken the product formulation and might help to add minerals to the surface of the skin. It is used in scrubs as a physical exfoliant. Can increase sensitivity to other ingredients if left on the skin or used in high concentration
0.2% - 0.4%
Helps oil and water mix together
0.2% - 0.4%
Helps oil and water mix together
0.25% - 0.5%
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
0.2% - 0.35%
Helps water and oil mix together
0.25% - 0.5%
A preservative. It helps prevent bacterial growth in cosmetic products
0.15% - 0.3%

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