Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum

Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
4.6Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
$$$$

Review

Results you may expect from using Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum:

  • Moderate moisturizing. It has a moisturizing rating of 5.0 out of 10.
  • Considerable anti-wrinkle efficacy: Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum has an anti-wrinkle rating of 4.6 out of 10, indicating a moderate ability to reduce wrinkles.
  • Antioxidant protection.

How moisturizing is it?

Quite moisturizing: Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum has a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Glycerin (est. ≈6.0%) and Niacinamide (est. ≈3.0%).

Tip: Studies suggest that humectants alone do not moisturize the skin. We recommend applying a product with some occlusive ingredients after the use of this one.

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

Anti-wrinkle efficacy

According to CreamScan analysis, Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum has a moderate anti-wrinkle rating of 4.6 out of 10.

It contains 2 active ingredients with proven anti-wrinkle efficacy:

  • Niacinamide (est. ≈3.0%),
     one of the most effective and well-researched anti-wrinkle ingredients.
  • Ascorbic Acid (est. ≈0.3%),
     or Vitamin C, a popular anti-wrinkle ingredient, yet with average efficacy confirmed by only one study.
Among others, Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum also contains some ingredients marketed as effective in reducing wrinkles, specifically 3-O-Ethyl Ascorbic Acid, Ubiquinone, Tetrahexyldecyl Ascorbate, and Pueraria Lobata Root Extract. 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 contribute to 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 additional anti-wrinkle efficacy through its moisturizing action.
 

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

Antioxidant benefits

We estimate that Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum is rich (> 3%) in antioxidants, specifically 3-O-Ethyl Ascorbic Acid (est. ≈4.0%) and Niacinamide (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
70
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
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Ratings

All humectants
12.3
6
3
1.5
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 12.3 10
10.0
6
3
1.5
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
3
1.5
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 12.3 10
10
All humectants
12.3
6
3
1.5
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
6 /10 4 3 4.5
2.5 /10 5 0.3 0.1
n/a
- 4 -
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
4.6
Niacinamide
4.5
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
3
Ascorbic Acid
0.1
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
in this formula, est. %
0.3
3-O-Ethyl Ascorbic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
4
Ubiquinone
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Tetrahexyldecyl Ascorbate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Pueraria Lobata Root Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
4.6
Ingredient Est. % Benchmark
Rich in Antioxidants
4
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 9.4 3 Rich in antioxidants
All antioxidants
9.4
3-O-Ethyl Ascorbic Acid
4
Niacinamide
3
Ascorbic Acid
0.3
Superoxide Dismutase
0.3
Ubiquinone
0.3
Hexylresorcinol
0.3
Tetrahexyldecyl Ascorbate
0.3
Isoquercetin
0.3
Pueraria Lobata Root Extract
0.3
Curcuma Longa (Turmeric) Root Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
3
0.3
All soothing 3.3 5 No
All soothing
3.3
3
0.3
Benchmark
5

Ingredients explained

Water
Est. %70
Function
Origin
The 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.
Glycerin
Est. %6
Function
Origin

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

3-O-Ethyl Ascorbic Acid
Est. %4
Function
Origin
A derivative of vitamin C. Its stability in skincare formulations is better than ascorbic acid’s, although clinical studies are yet to indicate whether it has the same collagen-boosting benefits.
Niacinamide
Est. %3
Function
Origin

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.

Glycereth-7 Triacetate
Est. %2
Function
Origin
Description is coming soon
Lactic Acid
Est. %1.5
Function
Origin
The 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.
SD Alcohol 40-B
Est. %1.3
Function
Origin
A natural ingredient containing a denaturant to discourage drinking.
Hydroxyethylcellulose
Est. %1
Function
Origin
A naturally-derived thickener that can form clear gel textures without the slimy feeling, unlike some other natural gel-formers.
Dimethyl Isosorbide
Est. %0.3
Function
Origin
A 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.
Ascorbic Acid
Est. %0.3
Function
Origin

Also known as vitamin C, this multi-benefit ingredient has proven anti-wrinkle, antioxidant, and anti-pigmentation efficacy. It degrades easily when exposed to air and light, so it requires proper packaging to maintain its stability.

Collagen Amino Acids
Est. %0.3
Function
Origin
A mixture of amino acids obtained by chopping up collagen molecules. It consists mainly of glycine, proline, alanine, and hydroxyproline. They all have humectant properties.
Superoxide Dismutase
Est. %0.3
Function
Origin
Description is coming soon
Glycine
Est. %0.3
Function
Origin
A humectant moisturizing amino acid that is a part of skin's Natural Moisturizing Factor. Some recent studies suggest that it may have barrier repair properties.
Carnitine HCl
Est. %0.3
Function
Origin
Description is coming soon
Ubiquinone
Est. %0.3
Function
Origin
Also known as Coenzyme Q10, this bright orange antioxidant supports the skin's energy metabolism. It also offers some anti-pigment action. Dietary supplementation of Ubiquinone improves the appearance of wrinkles.
Hexylresorcinol
Est. %0.3
Function
Origin
A synthetic compound. It is an anti-pigment ingredient that has been shown to be effective in inhibiting tyrosinase activity.
Emblica Officinalis Fruit Extract
Est. %0.3
Function
Origin
Description is coming soon
Hydrolyzed Soy Protein
Est. %0.3
Function
Origin
A mixture of proteins obtained from soybeans. It can have many different functions depending on the manufacturer, although it is most commonly used in skincare products as a humectant moisturizing ingredient.
Tetrahexyldecyl Ascorbate
Est. %0.3
Function
Origin
A 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.
Isoquercetin
Est. %0.3
Function
Origin
Description is coming soon
Mandelic Acid
Est. %0.3
Function
Origin
Derived from almonds, this ingredient is one of the gentlest AHAs and is used for its exfoliating and antimicrobial properties. It is particularly beneficial for acne but also helps to treat post-inflammatory hyperpigmentation.
Pueraria Lobata Root Extract
Est. %0.3
Function
Origin
An extract from the roots of Kudzu, a trailing vine native to several Asian countries. It contains a combination of isoflavones and polysaccharides which have been shown to increase the production of collagen and HA in aging skin.
Curcuma Longa (Turmeric) Root Extract
Est. %0.3
Function
Origin
An extract derived from the thick roots of curcuma (turmeric), a famous yellow spice and a major ingredient in curry powder. It is used in skincare for its proven antioxidant and anti-inflammatory properties.
Phytic Acid
Est. %0.3
Function
Origin
Phytic acid is found in rice and is seen as a cousin of alpha-hydroxy acids. As a chelator, it can bind to certain metals that may cause discoloration in products or reduce the efficacy of other ingredients.
Citric Acid
Est. %0.3
Function
Origin
A 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.
Tetrasodium EDTA
Est. %0.3
Function
Origin
One of the most common synthetic chelators. It can reduce the 'hardness' of water and so is often used in rinse-off products.
Sodium Citrate
Est. %0.3
Function
Origin
A salt of citric acid that has a salty and tart flavor and is used as a fragrance. It is mildly basic, meaning that its addition to a skincare product can adjust the pH upward.
Butylene Glycol
Est. %0.3
Function
Origin
A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.
Xanthan Gum
Est. %0.3
Function
Origin
A 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.
Polysorbate 20
Est. %0.3
Function
Origin
A 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.
t-Butyl Alcohol
Est. %0.3
Function
Origin
Description is coming soon
Sodium Hydroxide
Est. %0.3
Function
Origin
An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.
Polysorbate 80
Est. %0.3
Function
Origin
A non-ionic surfactant, which means that it contains no chemical charges. It can be used as a mild cleansing agent in skin cleansing products but is more commonly used for its emulsifying abilities.
Denatonium Benzoate
Est. %0.3
Function
Origin
Description is coming soon
Benzyl Alcohol
Est. %0.3
Function
Origin
A multifunctional ingredient that is supplied as a clear, colorless liquid. Its main function is as a flavoring agent and fragrance. It also acts as a broad-spectrum preservative, solvent, and viscosity-controlling agent that thins the product.
Phenoxyethanol
Est. %0.3
Function
Origin
The 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.
Sodium Benzoate
Est. %0.3
Function
Origin
A preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Potassium Sorbate
Est. %0.3
Function
Origin
A 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.
Caramel
Est. %0.3
Function
Origin
A natural ingredient that is derived from the heat treatment of table sugar. Caramel is used in skincare as a natural colorant that can create transparent, dark brown solutions. It also works as a fragrance, where it provides a sweet, sugary scent.