Works for:
based on ingredients and %- Evens skin tone
- Anti-oxidation
- Anti-blemish
- Anti-aging
Can it cause trouble?
- Irritation risk: medium
- Comedogenic risk ingredients: 2
Key actives
Product Summary
"Dr. Idiss - Left Un-Red Reducer Serum" is effective for: Anti-blemish and Evens skin tone
This product could be helpful for: Anti-aging and Moisturizing, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- Azelaic Acid (2.00% - 3.00%). This active can reduce hyperpigmentation. It also works helps against acne and clogged pores. Please note that Azelaic Acid is most effective against acne in concentrations between 10% and 20%.
- Potassium Azeloyl Diglycinate (2.70% - 4.00%). It is a derivative of Azelaic Acid. It is less studied than Azelaic Acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium Azeloyl Diglycinate is better soluble in water compared with Azelaic Acid. Because of this property, products with Potassium Azeloyl Digclycinate can have a nicer texture.
- Humectants (glycerin 3.80% - 5.70%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Anti-blemish
This product can help reduce breakouts and clogged pores because it contains the following ingredient: azelaic acid. This ingredient is used for treating acne and can have a noticeable effect.
In addition, this product contains potassium azeloyl diglycinate. It can help in reducing blemishes, even though it is less effective.
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
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
Anti-oxidation
This product contains antioxidants (azelaic acid, glycyrrhetinic 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).
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
Active compound of licorice root. Works to calm down inflammation, as an anti-oxidant, and might be helpful in lightening the skin and reducing hyperpigmentation
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
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
An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties
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.
Evens skin tone
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: azelaic acid, potassium azeloyl diglycinate
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: glycyrrhetinic acid.
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.
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
Active compound of licorice root. Works to calm down inflammation, as an anti-oxidant, and might be helpful in lightening the skin and reducing hyperpigmentation
Anti-aging
This product contains azelaic acid, glycyrrhetinic acid. These ingredients 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.
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
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.
Moisturizing
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, butylene glycol.
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: butyrospermum parkii butter, caprylic/capric triglyceride.
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
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
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
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
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
Helps oil and water mix together, preserve cosmetic products, and attract water to the upper layer of the skin
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
Helps soften the upper layer of the skin
Improves the texture of the product and helps soften the skin. Helps oil and water mix together and can be used as a cleansing agent
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
Used to preserve products, dissolve other ingredients and create a nice product texture
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Evens skin tone |
Total Promises Fulfilled score: 100/100.
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Potential irritants
Comedogenic ingredients
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|---|---|---|---|
 Dr. Idiss Left Un-Red Reducer Serum | Current | - | |
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Key Actives
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
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
Active compound of licorice root. Works to calm down inflammation, as an anti-oxidant, and might be helpful in lightening the skin and reducing hyperpigmentation
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
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
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
Potential irritants
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
Used to preserve products, dissolve other ingredients and create a nice product texture
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
Active compound of licorice root. Works to calm down inflammation, as an anti-oxidant, and might be helpful in lightening the skin and reducing hyperpigmentation
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.
Helps water and oil mix together and stabilize the product formulation
Comedogenic ingredients
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
All ingredients
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
Used to preserve products, dissolve other ingredients and create a nice product texture
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
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
Helps to dissolve other ingredients in a formulation. Slows down the rate of product drying
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
Used to create a thicker product consistency
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
Active compound of licorice root. Works to calm down inflammation, as an anti-oxidant, and might be helpful in lightening the skin and reducing hyperpigmentation
Might help to reduce inflammation in skin, but solid research is lacking
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
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.
An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties
Helps oil and water mix together, preserve cosmetic products, and attract 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
Improves the texture of the product and helps soften the skin. Helps oil and water mix together and can be used as a cleansing agent
Helps water and oil mix together and stabilize the product formulation
A preservative. It helps prevent bacterial growth in cosmetic products
Ingredient list view
Water, Glycerin, Propanediol, Potassium azeloyl diglycinate, Azelaic acid, Pentylene glycol, Caprylic/capric triglyceride, Butyrospermum parkii butter, Dipropylene glycol, Cetearyl olivate, Cetyl alcohol, Sorbitan olivate, Sodium acrylate/sodium acryloyldimethyl taurate copolymer, Dimethicone, Sodium hydroxide, Glycyrrhetinic acid, Hydroxyphenyl propamidobenzoic acid, Salix alba bark extract, Apricot kernel oil polyglyceryl-6 esters, Proline, Magnolol, Honokiol, Sodium phytate, Ascorbyl palmitate, Bisabolol, Capryloyl glycine, Ethylhexylglycerin, Butylene glycol, Sorbitan oleate, Polyglyceryl-6 caprylate, Xanthan gum, Polysorbate 80, Polyglyceryl-10 oleate, Isohexadecane, Sorbitan palmitate, Sodium bicarbonate, Phenoxyethanol, Ci 19140, Ci 42090
- Glycerol and the skin: holistic approach to its origin and functions
- Clinical and instrumental assessment of the effects of a new product based on hydroxypropyl chitosan and potassium azeloyl diglycinate in the management of rosacea
- A Preliminary Clinical Evaluation of a Topical Product for Reducing Slight Rosacea Imperfections
- Azeloyl-Glycine: A new active in skin disequilibrium
- Formulation and evaluation of the cream made from potassium azeloyl diglycinate as an anti-aging
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Glycyrrhetinic acid, the active principle of licorice, can reduce the thickness of subcutaneous thigh fat through topical application
- Effects of topical application of B‐Resorcinol and Glycyrrhetinic acid monotherapy and in combination with fractional CO2 laser treatment for benign hand hyperpigmentation treatment
- 18β-Glycyrrhetinic Acid and Glabridin Prevent Oxidative DNA Fragmentation in UVB-irradiated Human Keratinocyte Cultures
- Efficacy and Safety of White Willow Bark (Salix alba) Extract
- An evaluation of the effect of a topical product containing salicin on the visible signs of human skin aging
- α-(-)-Bisabolol Reduces Pro-Inflammatory Cytokine Production and Ameliorates Skin Inflammation
- Surfactants and experimental irritant contact dermatitis
- Analysis of Dyes in Cosmetics: Challenges and Recent Developments