Peter Thomas Roth Potent-C Brightening Vitamin C Moisturizer

Peter Thomas Roth Potent-C Brightening Vitamin C Moisturizer
6.2
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
2.3 Occlusivity icon Occlusivity
Rich
in Antioxidants

Review

Results you may expect from using Peter Thomas Roth Potent-C Brightening Vitamin C Moisturizer:

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

  • Significant moisturizing. It has a moisturizing rating of 6.2 out of 10.
  • Antioxidant protection.

How moisturizing is it?

Highly moisturizing: Peter Thomas Roth Potent-C Brightening Vitamin C Moisturizer has a moisturizing rating of 6.2 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 2.3 out of 10 and a maximum humectancy of 10 out of 10, primarily due to the high content of Propanediol (est. ≈6.0%) and Glycerin (est. ≈3.1%).

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 Brightening Vitamin C Moisturizer has a zero anti-wrinkle rating.

It contains some ingredients marketed as effective in reducing wrinkles, specifically Tetrahexyldecyl Ascorbate, Olea Europaea (Olive) Fruit Extract, and Gluconolactone. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards. Therefore, these ingredients do not generate the anti-wrinkle rating.

Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, could deliver some anti-wrinkle effects through its moisturizing action.

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 Brightening Vitamin C Moisturizer is rich (> 3%) in antioxidants, specifically Tetrahexyldecyl Ascorbate (est. ≈10.0%) and Tocopheryl Acetate (est. ≈3.0%).

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.

Ingredients

Est. % Ingredient Origin Functions
55
Water
10
Tetrahexyldecyl Ascorbate
6
Propanediol
4
C9-12 Alkane
3.1
Glycerin
3
Tocopheryl Acetate
2
Behenyl Alcohol
1.5
Palmitic Acid
1.3
Cetyl Palmitate
1
Polyglyceryl-2 Stearate
0.3
Stearic Acid
0.3
Stearyl Alcohol
0.3
Oleic Acid
0.3
Soy Acid
0.3
Ferulic Acid
0.3
Brassica Oleracea Acephala Leaf Extract
0.3
Olea Europaea (Olive) Fruit Extract
0.3
Hydrolyzed Collagen
0.3
Elastin
0.3
Zingiber Officinale (Ginger) Root Extract
0.3
Lactic Acid
0.3
Ceramide NP
0.3
Sodium Hyaluronate
0.3
Butyrospermum Parkii (Shea) Butter
0.3
Wheat Amino Acids
0.3
Glycine Soja (Soybean) Sterols
0.3
Saccharomyces Ferment
0.3
Jojoba Esters
0.3
Vegetable Oil
0.3
Glyceryl Stearate
0.3
Gluconolactone
0.3
Calcium Gluconate
0.3
Sodium Benzoate
0.3
Sodium PCA
0.3
Sodium Stearoyl Lactylate
0.3
Myristic Acid
0.3
Sodium Hydroxide
0.3
Sodium Lactate
0.3
Lauroyl Lysine
0.3
Arachidic Acid
0.3
Lauric Acid
0.3
Potassium Sorbate
0.3
Coco-Caprylate/Caprate
0.3
Sodium Carboxymethyl Beta-Glucan
0.3
Histidine HCl
0.3
Carnosine
0.3
Polyglyceryl-6 Distearate
0.3
Arachidyl Alcohol
0.3
Cetyl Alcohol
0.3
Lignoceryl Alcohol
0.3
Xanthan Gum
0.3
Carbomer
0.3
Polyglyceryl-3 Beeswax
0.3
Ethylhexylglycerin
0.3
Disodium EDTA
0.3
Mica
0.3
Phenoxyethanol
0.3
Yellow 6 (CI 15985)
0.3
Yellow 5 (CI 19140)
Est. %
Water
Function:
Origin:
Tetrahexyldecyl Ascorbate
Function:
Origin:
Propanediol
Function:
Origin:
C9-12 Alkane
Function:
Origin:
Glycerin
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Behenyl Alcohol
Function:
Origin:
Palmitic Acid
Function:
Origin:
Cetyl Palmitate
Function:
Origin:
Polyglyceryl-2 Stearate
Function:
Origin:
Stearic Acid
Function:
Origin:
Stearyl Alcohol
Function:
Origin:
Oleic Acid
Function:
Origin:
Soy Acid
Function:
Origin:
Ferulic Acid
Function:
Origin:
Brassica Oleracea Acephala Leaf Extract
Function:
Origin:
Olea Europaea (Olive) Fruit Extract
Function:
Origin:
Hydrolyzed Collagen
Function:
Origin:
Elastin
Function:
Origin:
Zingiber Officinale (Ginger) Root Extract
Function:
Origin:
Lactic Acid
Function:
Origin:
Ceramide NP
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Butyrospermum Parkii (Shea) Butter
Function:
Origin:
Wheat Amino Acids
Function:
Origin:
Glycine Soja (Soybean) Sterols
Function:
Origin:
Saccharomyces Ferment
Function:
Origin:
Jojoba Esters
Function:
Origin:
Vegetable Oil
Function:
Origin:
Glyceryl Stearate
Function:
Origin:
Gluconolactone
Function:
Origin:
Calcium Gluconate
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Sodium PCA
Function:
Origin:
Sodium Stearoyl Lactylate
Function:
Origin:
Myristic Acid
Function:
Origin:
Sodium Hydroxide
Function:
Origin:
Sodium Lactate
Function:
Origin:
Lauroyl Lysine
Function:
Origin:
Arachidic Acid
Function:
Origin:
Lauric Acid
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Coco-Caprylate/Caprate
Function:
Origin:
Sodium Carboxymethyl Beta-Glucan
Function:
Origin:
Histidine HCl
Function:
Origin:
Carnosine
Function:
Origin:
Polyglyceryl-6 Distearate
Function:
Origin:
Arachidyl Alcohol
Function:
Origin:
Cetyl Alcohol
Function:
Origin:
Lignoceryl Alcohol
Function:
Origin:
Xanthan Gum
Function:
Origin:
Carbomer
Function:
Origin:
Polyglyceryl-3 Beeswax
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Disodium EDTA
Function:
Origin:
Mica
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Yellow 6 (CI 15985)
Function:
Origin:
Yellow 5 (CI 19140)
Function:
Origin:

Ratings

All humectants
11.8
6
3.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
4.6
1.5
1.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
20
Moisturizing rating
6.2
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 11.8 10
10.0
6
3.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 4.6 20
2.3
1.5
1.3
0.3
0.3
0.3
0.3
0.3
0.3
Moisturizing rating
6.2
Ingredient Est. % Benchmark Humectancy
6
3.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 11.8 10
10
All humectants
11.8
6
3.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
1.5
1.3
0.3
0.3
0.3
0.3
0.3
0.3
All occlusives 4.6 20
2.3
All occlusives
4.6
1.5
1.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 10 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
0
Tetrahexyldecyl Ascorbate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
10
Olea Europaea (Olive) Fruit Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Gluconolactone
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
10
3
0.3
0.3
0.3
0.3
0.3
All antioxidants 14.5 3 Rich in antioxidants
All antioxidants
14.5
Tetrahexyldecyl Ascorbate
10
Tocopheryl Acetate
3
Ferulic Acid
0.3
Olea Europaea (Olive) Fruit Extract
0.3
Zingiber Officinale (Ginger) Root Extract
0.3
Sodium Hyaluronate
0.3
Carnosine
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
All soothing 0.9 5 No
All soothing
0.9
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %55
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.
Tetrahexyldecyl Ascorbate
Est. %10
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.
Propanediol
Est. %6
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. %4
Function
Origin
C9-12 AlkaneDescription is coming soon
Glycerin
Est. %3.1
Function
Origin
Glycerin

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

Tocopheryl Acetate
Est. %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.

Behenyl Alcohol
Est. %2
Function
Origin
Behenyl AlcoholA fatty alcohol with emollient properties. It is used as a co-emulsifier and thickener and tends to result in a product with a smooth and creamy application texture.
Palmitic Acid
Est. %1.5
Function
Origin
Palmitic AcidA saturated fatty acid used in skincare as a strongly occlusive moisturizer and barrier repairing, emollient ingredient. It is a waxy-looking, white solid. Palmitic acid can be commonly found in animal and vegetable fats, notably palm oil.
Cetyl Palmitate
Est. %1.3
Function
Origin
Cetyl PalmitateA moisturizing occlusive and emollient wax ester that consists of cetyl alcohol and palmitic acid. In nature, cetyl palmitate is found, and was first identified, in spermaceti, a waxy substance from inside the skull of the sperm whale.
Polyglyceryl-2 Stearate
Est. %1
Function
Origin
Polyglyceryl-2 StearateDescription is coming soon
Stearic Acid
Est. %0.3
Function
Origin
Stearic AcidA saturated fatty acid found in vegetable butter and animal fats. It is an occlusive moisturizing and emollient ingredient and also helps to maintain the barrier function of the skin.
Stearyl Alcohol
Est. %0.3
Function
Origin
Stearyl AlcoholA natural fatty alcohol that thickens, stabilizes, and keeps emulsions a bright white color. It has many uses, the main one being as an emulsifier. It also acts as an opacifying agent and emollient.
Oleic Acid
Est. %0.3
Function
Origin
Oleic AcidAn omega-9 fatty acid commonly found in vegetable oils. It is occlusive moisturizing, emollient and emulsifying.
Soy Acid
Est. %0.3
Function
Origin
Soy AcidDescription is coming soon
Ferulic Acid
Est. %0.3
Function
Origin
Ferulic AcidA plant-based phenolic acid with powerful and scientifically proven antioxidant properties. It enhances the effects of vitamins C and E, as well as the UV protective effects of sunscreens.
Brassica Oleracea Acephala Leaf Extract
Est. %0.3
Function
Origin
Brassica Oleracea Acephala Leaf ExtractDescription is coming soon
Olea Europaea (Olive) Fruit Extract
Est. %0.3
Function
Origin
Olea Europaea (Olive) Fruit ExtractAn antioxidant extract derived from olives. It contains promising anti-aging Oleuropein and prospective anti-pigment Cornoside.
Hydrolyzed Collagen
Est. %0.3
Function
Origin
Hydrolyzed Collagen

A humectant, film-forming, and emollient mixture of various proteins and peptides that were created by cutting the huge molecules of normal collagen into smaller pieces for better absorption. It also has some antioxidant properties.

Elastin
Est. %0.3
Function
Origin
ElastinDescription is coming soon
Zingiber Officinale (Ginger) Root Extract
Est. %0.3
Function
Origin
Zingiber Officinale (Ginger) Root ExtractA fragrant and anti-inflammatory extract derived from ginger roots. It is a major part of Chinese traditional medicine. In can increase blood circulation, which helps with skin healing and skin metabolism.
Lactic Acid
Est. %0.3
Function
Origin
Lactic AcidThe most popular AHA in skincare and less irritating than glycolic acid. It can be naturally found in sour milk. It is a humectant moisturizing, pH stabilizing, and gently exfoliating ingredient, able to soften dry, cracked, and peeling skin.
Ceramide NP
Est. %0.3
Function
Origin
Ceramide NPAlso known as ceramide 3, it is the most common ceramide in our skin. It helps to restore the skin’s lipid barrier and alleviate the symptoms of dry and cracked skin. Research has shown that skin suffering from conditions such as AD lacks ceramides.
Sodium Hyaluronate
Est. %0.3
Function
Origin
Sodium Hyaluronate

A sodium salt of famous hyaluronic acid. A potent humectant that hydrates the skin, supports collagen function, and fills out small wrinkles. Sodium hyaluronate also offers soothing and antioxidant properties.

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.
Wheat Amino Acids
Est. %0.3
Function
Origin
Wheat Amino AcidsDescription is coming soon
Glycine Soja (Soybean) Sterols
Est. %0.3
Function
Origin
Glycine Soja (Soybean) SterolsA mixture of phytosterols isolated from soybean oil. Phytosterols, when used in skincare products, have emollient properties and can make the skin feel softer and smoother.
Saccharomyces Ferment
Est. %0.3
Function
Origin
Saccharomyces FermentDescription is coming soon
Jojoba Esters
Est. %0.3
Function
Origin
Jojoba EstersA mixture of various wax esters from jojoba oil. It is used in skincare products as a fantastic emollient, soothing, and occlusive moisturizing agent that won't leave a sticky, oily feeling on the skin.
Vegetable Oil
Est. %0.3
Function
Origin
Vegetable OilAn occlusive moisturizing and emollient fatty oil obtained from various plant sources. It consists mainly of triglycerides and saturated or unsaturated fatty acids.
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.
Gluconolactone
Est. %0.3
Function
Origin
GluconolactoneA PHA derived from glucose. It has exfoliating and humectant properties and acts as a penetration enhancer for other ingredients. It has also been shown to assist in the treatment of acne and the prevention of photoaging.
Calcium Gluconate
Est. %0.3
Function
Origin
Calcium GluconateA white crystalline powder that can act as a humectant when dissolved into water. It is also a chelating agent.
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.
Sodium PCA
Est. %0.3
Function
Origin
Sodium PCAOne of the most important parts of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Sodium PCA is used in skincare for its fantastic humectant properties.
Sodium Stearoyl Lactylate
Est. %0.3
Function
Origin
Sodium Stearoyl LactylateA negatively charged surfactant that mixes oils with water and cleanses skin.
Myristic Acid
Est. %0.3
Function
Origin
Myristic AcidA common fatty acid found in various vegetable oils, most notably palm and coconut oil. It is a strongly occlusive moisturizing, emollient, and emulsifying ingredient.
Sodium Hydroxide
Est. %0.3
Function
Origin
Sodium Hydroxide

An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.

Sodium Lactate
Est. %0.3
Function
Origin
Sodium LactateA sodium salt of lactic acid. Its main function is as a humectant but it can also serve as a pH adjuster. Additionally, sodium lactate can also be used as a chemical exfoliant due to its close chemical relation to lactic acid.
Lauroyl Lysine
Est. %0.3
Function
Origin
Lauroyl LysineA synthetic insoluble powder that improves the texture of a product, leaving the skin silky smooth and absorbing oils and sweat.
Arachidic Acid
Est. %0.3
Function
Origin
Arachidic AcidDescription is coming soon
Lauric Acid
Est. %0.3
Function
Origin
Lauric AcidA fatty acid derived from various vegetable oils such as palm or coconut oil. It helps to maintain the barrier function of the skin and is also used as a cleansing or emulsifying agent. Lauric acid is listed among common comedogenic ingredients by acne.org.
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.
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.
Sodium Carboxymethyl Beta-Glucan
Est. %0.3
Function
Origin
Sodium Carboxymethyl Beta-GlucanDescription is coming soon
Histidine HCl
Est. %0.3
Function
Origin
Histidine HClDescription is coming soon
Carnosine
Est. %0.3
Function
Origin
CarnosineA skin-identical dipeptide that acts as a powerful antioxidant. It protects our skin from harmful glycation and can enhance the activity of other active ingredients in the skincare product.
Polyglyceryl-6 Distearate
Est. %0.3
Function
Origin
Polyglyceryl-6 DistearateDescription is coming soon
Arachidyl Alcohol
Est. %0.3
Function
Origin
Arachidyl AlcoholA non-drying fatty alcohol that functions as an emollient, emulsion stabilizer, and viscosity controlling agent. It also produces a mattifying effect when applied in a skincare product onto the skin.
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.
Lignoceryl Alcohol
Est. %0.3
Function
Origin
Lignoceryl AlcoholDescription is coming soon
Xanthan Gum
Est. %0.3
Function
Origin
Xanthan GumA natural multi-functional ingredient that originates from fermented sugars. Xanthan gum acts as a viscosity-building agent to thicken skincare products. It is also an excellent stabilizer and works well to hold other ingredients together.
Carbomer
Est. %0.3
Function
Origin
CarbomerA synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer.
Polyglyceryl-3 Beeswax
Est. %0.3
Function
Origin
Polyglyceryl-3 BeeswaxDescription is coming soon
Ethylhexylglycerin
Est. %0.3
Function
Origin
EthylhexylglycerinA preservative booster derived from glycerin. It is commonly paired with other preservatives to improve their efficacy. Ethylhexylglycerin is also a humectant due to its chemical base of glycerin.
Disodium EDTA
Est. %0.3
Function
Origin
Disodium EDTAA synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Mica
Est. %0.3
Function
Origin
MicaA mineral powder made up of silicates with several functions (the main one being as a colorant). It has a shimmery appearance, making it highly desirable in certain cosmetic products. Mica also helps the product to apply more smoothly.
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.
Yellow 6 (CI 15985)
Est. %0.3
Function
Origin
Yellow 6 (CI 15985)A petroleum-derived reddish-yellow dye, also known as Sunset Yellow. It is the third most used pigment in food, cosmetics, and drugs.
Yellow 5 (CI 19140)
Est. %0.3
Function
Origin
Yellow 5 (CI 19140)A bright yellow colorant that is often also listed as FD&C Yellow 5.