Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment

Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment
4.0
/ 10
Moisturizing
6.5 Humectancy icon Humectancy
1.5 Occlusivity icon Occlusivity
6Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Rich Skin Soothing icon
in Skin Soothers

Review

Results you may expect from using Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment:

  • Moderate moisturizing. It has a moisturizing rating of 4.0 out of 10.
  • Significant anti-wrinkle efficacy. With an anti-wrinkle rating of 6.0 out of 10, Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment is effective in minimizing wrinkles.
  • Soothing: Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment contains a high concentration of soothing ingredients, which may help to reduce irritation and calm the skin.
  • Antioxidant protection.

How moisturizing is it?

Quite moisturizing: Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment has a moisturizing rating of 4.0 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 1.5 out of 10 and a high humectancy of 6.5 out of 10, primarily due to the high content of Niacinamide (est. ≈5.0%).

Please refer to the Ratings section below for details of the moisturizing rating calculation.

Anti-wrinkle efficacy

According to CreamScan analysis, Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment has a high anti-wrinkle rating of 6.0 out of 10. It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈5.0%),
 one of the most effective and well-researched anti-wrinkle ingredients.
 
Among others, Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment also contains Tetrahexyldecyl Ascorbate, an ingredient marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Tetrahexyldecyl Ascorbate provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. Therefore, this ingredient does not contribute to the anti-wrinkle rating.
 

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

Antioxidant benefits

We estimate that Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment is rich (> 3%) in antioxidants, specifically Niacinamide (est. ≈5.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

Skin soothing

Based on the ingredient list analysis, Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment is rich (> 5%) in soothing ingredients, particularly Niacinamide (est. ≈5.0%).

When applied to the skin, compounds of soothing ingredients, such as triglycerides, phospholipids, fatty acids, phenolic compounds, and antioxidants, work together to soothe the skin through various mechanisms: reducing inflammation, promoting wound healing, repairing the skin barrier, and providing antimicrobial and antioxidant activities.

Ingredients

Est. % Ingredient Origin Functions
70
Water
5
Niacinamide
4
Dimethyl Isosorbide
3
Isononyl Isononanoate
2
Tranexamic Acid
1.5
Dimethicone
1.3
Caprylic/Capric Triglyceride
1
Alpha-Arbutin
0.3
Cetyl Alcohol
0.3
Glyceryl Stearate
0.3
Pentylene Glycol
0.3
Propanediol
0.3
C9-12 Alkane
0.3
Citric Acid
0.3
Glyceryl Stearate SE
0.3
Butyrospermum Parkii (Shea) Butter
0.3
Tetrahexyldecyl Ascorbate
0.3
Kojic Acid
0.3
Resveratrol
0.3
Tocopheryl Acetate
0.3
Diethylhexyl Syringylidenemalonate
0.3
Hydrangea Arborescens Root Extract
0.3
Morus Alba Root Extract
0.3
Scutellaria Lateriflora Extract
0.3
Hydrolyzed Vegetable Protein
0.3
Silica
0.3
Sodium Stearoyl Glutamate
0.3
Coco-Caprylate/Caprate
0.3
Dimethiconol
0.3
Glycerin
0.3
Sodium Phytate
0.3
Potassium Sorbate
0.3
Sodium Benzoate
0.3
Caprylyl Glycol
0.3
Hexylene Glycol
0.3
Polysorbate 20
0.3
Ceteth-20
0.3
Steareth-20
0.3
Polyacrylate Crosspolymer-6
0.3
PEG-75 Stearate
0.3
Titanium Dioxide (CI 77891)
0.3
Phenoxyethanol
Est. %
Water
Function:
Origin:
Niacinamide
Function:
Origin:
Dimethyl Isosorbide
Function:
Origin:
Isononyl Isononanoate
Function:
Origin:
Tranexamic Acid
Function:
Origin:
Dimethicone
Function:
Origin:
Caprylic/Capric Triglyceride
Function:
Origin:
Alpha-Arbutin
Function:
Origin:
Cetyl Alcohol
Function:
Origin:
Glyceryl Stearate
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Propanediol
Function:
Origin:
C9-12 Alkane
Function:
Origin:
Citric Acid
Function:
Origin:
Glyceryl Stearate SE
Function:
Origin:
Butyrospermum Parkii (Shea) Butter
Function:
Origin:
Tetrahexyldecyl Ascorbate
Function:
Origin:
Kojic Acid
Function:
Origin:
Resveratrol
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Diethylhexyl Syringylidenemalonate
Function:
Origin:
Hydrangea Arborescens Root Extract
Function:
Origin:
Morus Alba Root Extract
Function:
Origin:
Scutellaria Lateriflora Extract
Function:
Origin:
Hydrolyzed Vegetable Protein
Function:
Origin:
Silica
Function:
Origin:
Sodium Stearoyl Glutamate
Function:
Origin:
Coco-Caprylate/Caprate
Function:
Origin:
Dimethiconol
Function:
Origin:
Glycerin
Function:
Origin:
Sodium Phytate
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Caprylyl Glycol
Function:
Origin:
Hexylene Glycol
Function:
Origin:
Polysorbate 20
Function:
Origin:
Ceteth-20
Function:
Origin:
Steareth-20
Function:
Origin:
Polyacrylate Crosspolymer-6
Function:
Origin:
PEG-75 Stearate
Function:
Origin:
Titanium Dioxide (CI 77891)
Function:
Origin:
Phenoxyethanol
Function:
Origin:

Ratings

All humectants
6.5
5
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
3.1
1.5
1.3
0.3
Benchmark
20
Moisturizing rating
4.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 6.5 10
6.5
5
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 3.1 20
1.5
1.5
1.3
0.3
Moisturizing rating
4.0
Ingredient Est. % Benchmark Humectancy
5
0.3
0.3
0.3
0.3
0.3
All humectants 6.5 10
6.5
All humectants
6.5
5
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
1.5
1.3
0.3
All occlusives 3.1 20
1.5
All occlusives
3.1
1.5
1.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
6 /10 4 5 6
n/a
- 0.3 -
Total
6
Niacinamide
6
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
5
Tetrahexyldecyl Ascorbate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
6
Ingredient Est. % Benchmark
Rich in Antioxidants
5
1
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 7.8 3 Rich in antioxidants
All antioxidants
7.8
Niacinamide
5
Alpha-Arbutin
1
Tetrahexyldecyl Ascorbate
0.3
Kojic Acid
0.3
Resveratrol
0.3
Tocopheryl Acetate
0.3
Diethylhexyl Syringylidenemalonate
0.3
Morus Alba Root Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
5
All soothing 5 5 Rich in soothing
All soothing
5
5
Benchmark
5

Ingredients explained

Water
Est. %70
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Niacinamide
Est. %5
Function
Origin
Niacinamide

Also known as vitamin B3, this ingredient is a true superstar with confirmed moisturizing, anti-acne, hyperpigmentation, and antioxidant benefits. Two studies confirm its significant anti-wrinkle efficacy.

Dimethyl Isosorbide
Est. %4
Function
Origin
Dimethyl IsosorbideA solvent for active ingredients that is claimed to help them better penetrate the outer layer of skin. It also helps to reduce the thickness of a product.
Isononyl Isononanoate
Est. %3
Function
Origin
Isononyl IsononanoateAn ester of a branched fatty acid with a branched fatty alcohol. It is an easily spreadable emollient that has a silky, dry, non-greasy feel on the skin.
Tranexamic Acid
Est. %2
Function
Origin
Tranexamic AcidA synthetic amino acid that is used as an astringent to stop the bleeding from small cuts. It also has proven anti-pigment and redness-reducing effects.
Dimethicone
Est. %1.5
Function
Origin
DimethiconeThe most common silicone in skincare. It forms a silky, smooth film on the skin’s surface and can help to prevent water loss. It also aids in wound healing and can treat and soften scars. Dimethicone is considered to be very safe for use.
Caprylic/Capric Triglyceride
Est. %1.3
Function
Origin
Caprylic/Capric TriglycerideA natural occlusive moisturizing and emollient ingredient, it is a blend of glycerin and two fatty acids, caprylic and capric acid. It creates an oil-based protective layer on the skin, thereby preventing water loss.
Alpha-Arbutin
Est. %1
Function
Origin
Alpha-ArbutinDescription is coming soon
Cetyl Alcohol
Est. %0.3
Function
Origin
Cetyl AlcoholA waxy solid fatty alcohol derived from palm oil. It is most commonly used as a co-emulsifier and affects the final aesthetic of the product, leaving a soft and silky feeling on the skin. Cetyl alcohol is also used as a viscosity controlling agent.
Glyceryl Stearate
Est. %0.3
Function
Origin
Glyceryl StearateAn emollient and emulsifier typically derived from vegetable sources through a chemical reaction with glycerin. It provides stability, texture, and consistency to formulations. Its main function is to allow oil and water to mix.
Pentylene Glycol
Est. %0.3
Function
Origin
Pentylene Glycol

A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent.

Propanediol
Est. %0.3
Function
Origin
PropanediolAn excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.
C9-12 Alkane
Est. %0.3
Function
Origin
C9-12 AlkaneDescription is coming soon
Citric Acid
Est. %0.3
Function
Origin
Citric AcidA gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.
Glyceryl Stearate SE
Est. %0.3
Function
Origin
Glyceryl Stearate SEAn emulsifier, where the SE stands for self-emulsifying. Emulsions containing glyceryl stearate SE often impart a smooth, velvety feel upon the skin.
Butyrospermum Parkii (Shea) Butter
Est. %0.3
Function
Origin
Butyrospermum Parkii (Shea) ButterA semi-solid, buttery fat extracted from the seeds of the Shea tree that is a wonderful occlusive and emollient ingredient mainly comprised of fatty acids. Shea butter contains a large amount of anti-inflammatory and antioxidant compounds.
Tetrahexyldecyl Ascorbate
Est. %0.3
Function
Origin
Tetrahexyldecyl AscorbateA lipid-soluble form of vitamin C that is more stable and less irritating than ascorbic acid. According to a recent clinical study, THDA has all the capabilities of regular vitamin C, including anti-wrinkle and anti-pigment activity.
Kojic Acid
Est. %0.3
Function
Origin
Kojic AcidA bioactive compound isolated from various fungi or fermented products. It is one of the most common and potent anti-pigment and brightening ingredients, and has been successfully tested on humans.
Resveratrol
Est. %0.3
Function
Origin
ResveratrolA famous plant-based polyphenol found mainly in red grapes. It is a potent antioxidant, soothing, and wound healing ingredient.
Tocopheryl Acetate
Est. %0.3
Function
Origin
Tocopheryl Acetate

An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.

Diethylhexyl Syringylidenemalonate
Est. %0.3
Function
Origin
Diethylhexyl SyringylidenemalonateDescription is coming soon
Hydrangea Arborescens Root Extract
Est. %0.3
Function
Origin
Hydrangea Arborescens Root ExtractDescription is coming soon
Morus Alba Root Extract
Est. %0.3
Function
Origin
Morus Alba Root ExtractAn antioxidant, astringent, antimicrobial, and antifungal extract from white mulberry tree roots. It has been claimed to have anti-pigment potential.
Scutellaria Lateriflora Extract
Est. %0.3
Function
Origin
Scutellaria Lateriflora ExtractDescription is coming soon
Hydrolyzed Vegetable Protein
Est. %0.3
Function
Origin
Hydrolyzed Vegetable ProteinA blanket term used for plant-based proteins that have been processed into smaller chunks. They add to the skincare product's film-forming and water-binding properties.
Silica
Est. %0.3
Function
Origin
SilicaA widely used cosmetic ingredient with the same chemical composition as the sand found on beaches. A common function of silica is its ability to control viscosity. In certain chemical forms, it can effectively thicken cream-style products.
Sodium Stearoyl Glutamate
Est. %0.3
Function
Origin
Sodium Stearoyl GlutamateA useful ingredient for both cleansing and emulsifying purposes. It is a powerful agent for washing away dirt and oils from the skin.
Coco-Caprylate/Caprate
Est. %0.3
Function
Origin
Coco-Caprylate/CaprateA naturally-derived emollient ester. It is a blend of caprylates and caprates and, relative to other emollients, is lightweight and dry on the skin. As a result, coco-caprylate/caprate serves as a natural alternative to volatile silicones.
Dimethiconol
Est. %0.3
Function
Origin
DimethiconolA synthetic dimethicone with rich, non-tacky emolliency. It features the typical sensorial profile of silicones, with high spreadability and a luxurious, oil-free after-feel. Dimethiconol can also serve as an antifoaming agent.
Glycerin
Est. %0.3
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Sodium Phytate
Est. %0.3
Function
Origin
Sodium PhytateSodium phytate is a chelating agent that serves to remove heavy metal ions from water. Removing metal ions helps other ingredients, such as antioxidants and preservatives, to perform better and keep products from separating.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Sodium Benzoate
Est. %0.3
Function
Origin
Sodium BenzoateA preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Caprylyl Glycol
Est. %0.3
Function
Origin
Caprylyl GlycolAn emollient that improves product spreadability and offers a silky feel on the skin. It also acts as a preservative booster that improves the efficacy of other preservatives. According to the manufacturer, it is also a humectant moisturizer.
Hexylene Glycol
Est. %0.3
Function
Origin
Hexylene GlycolA multifunctional ingredient that is best known for its use as a solvent. It can dissolve both water-based ingredients and oils. For this reason, it can also function as an emulsifier, allowing oil and water ingredients to mix and remain stable.
Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Ceteth-20
Est. %0.3
Function
Origin
Ceteth-20A very mild but effective polyethylene-based cleanser and emulsifier.
Steareth-20
Est. %0.3
Function
Origin
Steareth-20A white to light brown reaction product of a clear gas and stearyl alcohol. Like the other steareth ingredients, steareth-20 is a waxy emulsifier that can help to form a stable emulsion, even in extreme conditions.
Polyacrylate Crosspolymer-6
Est. %0.3
Function
Origin
Polyacrylate Crosspolymer-6A polymeric ingredient that works best in water-based formulas to create gel textures. It helps to stabilize emulsions and control viscosity.
PEG-75 Stearate
Est. %0.3
Function
Origin
PEG-75 StearateDescription is coming soon
Titanium Dioxide (CI 77891)
Est. %0.3
Function
Origin
Titanium Dioxide (CI 77891)One of two the most commonly used mineral sunscreens. It can absorb UV light, including UVB – which causes burning, tanning, and even skin cancer. Also used as a colorant, titanium dioxide gives a product a bright white color.
Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.