Credentials Vitamin C Serum Review

Credentials Vitamin C Serum
4.0
/ 10
Moisturizing
5.5 Humectancy icon Humectancy
2.6 Occlusivity icon Occlusivity
0.1Anti-wrinkle icon/ 10
Anti-wrinkle
Review

Does Credentials Vitamin C Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Credentials Vitamin C Serum has to offer:
 
  • Moderate moisturizing. It has a moisturizing rating of 4.0 out of 10.
  • Slight anti-wrinkle effect: Credentials Vitamin C Serum has an anti-wrinkle rating of 0.1 out of 10, so you may expect a positive, although insignificant, effect on wrinkles.

Key Benefits of Credentials Vitamin C Serum

 
These are the key benefits you can expect from using Credentials Vitamin C Serum:
 

Lightweight Moisturizer Suitable for Combination and Oily Skin

According to CreamScan analysis, Credentials Vitamin C Serum is quite moisturizing, with a moisturizing rating of 4.0 out of 10.

Is it more humectant or occlusive? Rather humectant. It has a low occlusivity of 2.6 out of 10 and a moderate humectancy of 5.5 out of 10, primarily due to the high content of Glycerin (est. ≈4.0%).

This type of moisturizer is suitable for people with oily and combination skin who want essential hydration in a relatively lightweight, non-greasy formula. It combines a substantial amount of humectants with a limited amount of occlusive ingredients to enhance moisturizing efficacy without feeling too heavy.

A Humectant Add-on for Any Skincare Routine

But it’s not limited to combination and oily skin - since it contains a moderate amount of humectants, such a humectant add-on will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer.

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

Slight Anti-Wrinkle Efficacy

According to CreamScan analysis, Credentials Vitamin C Serum has a slight anti-wrinkle rating of 0.1 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Ascorbic Acid (est. ≈0.3%), 
 or Vitamin C, a popular ingredient, yet with moderate anti-wrinkle efficacy, as confirmed by a single clinical study involving 20 participants (Humbert et al.). This study showed that a cream with a relatively high concentration of 5% ascorbic acid reduced the average wrinkle depth by 7% after 6 months of use, compared to a vehicle (the same formulation without ascorbic acid).
 
Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some anti-wrinkle effects through its moisturizing action.
 

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

Please note that this is not a complete list of benefits. We are in the process of enhancing our AI model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Pros & Cons of Credentials Vitamin C Serum

 
Here’s an overview of the pros and cons of Credentials Vitamin C Serum to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • When used alone: Provides moderate humectant moisturizing suitable for combination and oily skin
  • As part of a routine: A humectant moisturizing enhancement, beneficial for any skin type
  • Lightweight texture
  • Provides slight anti-wrinkle efficacy

Cons: 

  • We couldn't find any

Ingredients

Est. % Ingredient Origin Functions
75
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
Est. %
Water
Function:
Origin:
Ethylhexyl Palmitate
Function:
Origin:
Glycerin
Function:
Origin:
Stearic Acid
Function:
Origin:
Isodecyl Neopentanoate
Function:
Origin:
DEA-Cetyl Phosphate
Function:
Origin:
Isostearyl Stearoyl Stearate
Function:
Origin:
Alchemilla Vulgaris Extract
Function:
Origin:
Aloe Barbadensis Leaf Juice
Function:
Origin:
Vitis Vinifera (Grape) Seed Extract
Function:
Origin:
Ascorbic Acid
Function:
Origin:
Chitosan Ascorbate
Function:
Origin:
Citric Acid
Function:
Origin:
Phytic Acid
Function:
Origin:
Salicylic Acid
Function:
Origin:
RNA
Function:
Origin:
Saccharomyces Lysate Extract
Function:
Origin:
Serine
Function:
Origin:
Sodium DNA
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Superoxide Dismutase
Function:
Origin:
Yeast Beta-Glucan
Function:
Origin:
Citrus Grandis Peel Oil
Function:
Origin:
Simmondsia Chinensis (Jojoba) Seed Oil
Function:
Origin:
Squalane
Function:
Origin:
Dimethicone
Function:
Origin:
Cetyl Alcohol
Function:
Origin:
Butylene Glycol
Function:
Origin:
Carbomer
Function:
Origin:
Imidazolidinyl Urea
Function:
Origin:
Methylparaben
Function:
Origin:
Propylparaben
Function:
Origin:

Ratings

All humectants
5.5
4
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
5.2
3.0
1.3
0.3
0.3
0.3
Benchmark
20
Moisturizing rating
4.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 5.5 10
5.5
4
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 5.2 20
2.6
3.0
1.3
0.3
0.3
0.3
Moisturizing rating
4.0
Ingredient Est. % Benchmark Humectancy
4
0.3
0.3
0.3
0.3
0.3
All humectants 5.5 10
5.5
All humectants
5.5
4
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
3
1.3
0.3
0.3
0.3
All occlusives 5.2 20
2.6
All occlusives
5.2
3.0
1.3
0.3
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
2.5 /10 5 0.3 0.1
Total
0.1
Ascorbic Acid
0.1
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
in this formula, est. %
0.3
Anti-wrinkle rating
0.1
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 2.1 3 No
All antioxidants
2.1
Ascorbic Acid
0.3
Aloe Barbadensis Leaf Juice
0.3
Vitis Vinifera (Grape) Seed Extract
0.3
Chitosan Ascorbate
0.3
Sodium Hyaluronate
0.3
Superoxide Dismutase
0.3
Citrus Grandis Peel Oil
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
1
0.3
0.3
All soothing 1.6 5 No
All soothing
1.6
1
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %75
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.
Ethylhexyl Palmitate
Est. %6
Function
Origin
Ethylhexyl PalmitateA rich emollient without the oily after-feel, making it a popular replacement for mineral oil. It is derived from natural sources such as palm oil and palm kernel oil. Ethylhexyl palmitate is listed as a common comedogenic ingredient by acne.org.
Glycerin
Est. %4
Function
Origin
Glycerin

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

Stearic Acid
Est. %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.
Isodecyl Neopentanoate
Est. %2
Function
Origin
Isodecyl NeopentanoateA super lightweight ester that softens the appearance of skin.
DEA-Cetyl Phosphate
Est. %1.5
Function
Origin
DEA-Cetyl Phosphate
Isostearyl Stearoyl Stearate
Est. %1.3
Function
Origin
Isostearyl Stearoyl Stearate
Alchemilla Vulgaris Extract
Est. %1
Function
Origin
Alchemilla Vulgaris ExtractA soothing extract that is derived from the lady's mantle plant. It contains plenty of astringent tannins and certain anti-inflammatory compounds.
Aloe Barbadensis Leaf Juice
Est. %0.3
Function
Origin
Aloe Barbadensis Leaf JuiceA gelatinous juice from Aloe vera leaves that acts as a powerful humectant, emollient, and antioxidant. It contains enzymes, amino acids, vitamins, and minerals that soothe irritated skin and have wound-healing and anti-inflammatory properties.
Vitis Vinifera (Grape) Seed Extract
Est. %0.3
Function
Origin
Vitis Vinifera (Grape) Seed ExtractA potent antioxidant and emollient extract derived from grape seeds. It contains antioxidant flavonoids, tannins, proanthocyanidins, phytosterols, carotenoids, and vitamin E. It is often used in skincare products aimed at soothing and healing irritated skin.
Ascorbic Acid
Est. %0.3
Function
Origin
Ascorbic Acid

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.

Chitosan Ascorbate
Est. %0.3
Function
Origin
Chitosan Ascorbate
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.
Phytic Acid
Est. %0.3
Function
Origin
Phytic AcidPhytic 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.
Salicylic Acid
Est. %0.3
Function
Origin
Salicylic AcidThis effective peeling and anti-inflammatory BHA is used as an anti-acne agent and works by breaking down the junctions between dead skin cells. This results in the peeling of dead skin and the unclogging of pores.
RNA
Est. %0.3
Function
Origin
RNA
Saccharomyces Lysate Extract
Est. %0.3
Function
Origin
Saccharomyces Lysate ExtractA mixture of yeast cell fragments with humectant moisturizing properties. It contains many beneficial compounds, including a wound healing polysaccharide called beta-glucan, peptides, and various minerals and vitamins.
Serine
Est. %0.3
Function
Origin
SerineA non-essential amino acid, meaning that our body can produce it. It is the largest constituent of the skin's Natural Moisturizing Factor and is used in skincare as a humectant moisturizing ingredient.
Sodium DNA
Est. %0.3
Function
Origin
Sodium DNA
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.

Superoxide Dismutase
Est. %0.3
Function
Origin
Superoxide Dismutase
Yeast Beta-Glucan
Est. %0.3
Function
Origin
Yeast Beta-Glucan
Citrus Grandis Peel Oil
Est. %0.3
Function
Origin
Citrus Grandis Peel Oil

A fragrant essential oil obtained from pomelo peels - sometimes mislabeled as grapefruit. The high limonene content is responsible for its citrusy scent. It may induce sun allergies in people sensitive to citrus fruits.

Simmondsia Chinensis (Jojoba) Seed Oil
Est. %0.3
Function
Origin
Simmondsia Chinensis (Jojoba) Seed OilA liquid plant wax, also known as Jojoba oil, pressed from the seeds of Simmondsia chinensis. These seeds can contain up to 50% of liquid wax. It is used as an occlusive moisturizer, emollient, and emulsifier.
Squalane
Est. %0.3
Function
Origin
SqualaneAn occlusive moisturizing and emollient compound that forms part of the skin’s sebum. The main source of squalane had always been shark liver. Now, however, it is manufactured synthetically or derived from plant oils, such as olive and peanut oil.
Dimethicone
Est. %0.3
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.
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.
Butylene Glycol
Est. %0.3
Function
Origin
Butylene Glycol

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.

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.
Imidazolidinyl Urea
Est. %0.3
Function
Origin
Imidazolidinyl UreaAn antimicrobial agent that provides broad spectrum protection.
Methylparaben
Est. %0.3
Function
Origin
MethylparabenA preservative that keeps a product unspoiled. There has been a lot of controversy surrounding parabens, although the concentrations found in cosmetic formulations are generally considered to be safe.
Propylparaben
Est. %0.3
Function
Origin
PropylparabenA preservative that keeps a product unspoiled. There has been a lot of controversy surrounding parabens, although the concentrations found in cosmetic formulations are generally considered to be safe.