The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid Review

The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
2.5Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Review

Does The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid has to offer:
 
  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.
  • Modest anti-wrinkle efficacy: The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid has an anti-wrinkle rating of 2.5 out of 10 so you may expect some, although limited, effect on wrinkles.
  • Antioxidant protection.

Key Benefits of The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid

 
These are the key benefits you can expect from using The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid:
 

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid is quite moisturizing, with 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. ≈4.0%) and Sodium Hyaluronate Crosspolymer (est. ≈2.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

Tip: Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

A Humectant Boost for Any Skincare Routine

But it’s not limited to oily skin - such a humectant boost will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

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

Modest Anti-Wrinkle Efficacy

According to CreamScan analysis, The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid has a modest level of anti-wrinkle efficacy, rated 2.5 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Ascorbic Acid (est. ≈10.0%), 
 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).
 
Among others, The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid also contains Camellia Sinensis Leaf Extract, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Camellia Sinensis Leaf Extract provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. Therefore, this ingredient does 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, 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.

Rich in Skin-Protecting Antioxidants

We estimate that The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid is rich (> 3%) in antioxidants, specifically Ascorbic Acid (est. ≈10.0%).

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.

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.

Things to Be Aware Of: The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid

 
CreamScan AI identified a few things to consider before adding The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid to your skincare routine:
 

If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid

 
Here’s an overview of the pros and cons of The Purest Solutions Brightening & Lightening Vitamin C Serum 10% Ascorbic Acid & 0.5% Ferulic Acid to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • When used alone: Provides humectant-rich moisturizing ideal for oily skin
  • As part of a routine: A humectant moisturizing boost, beneficial for any skin type
  • Lightweight texture
  • Offers modest anti-wrinkle efficacy
  • Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage

Cons: 

  • Only if used as a standalone moisturizer - it needs to be paired with occlusives to seal in humectants

Ingredients

Est. % Ingredient Origin Functions
75
10
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Ascorbic Acid
Function:
Origin:
Glycerin
Function:
Origin:
Hydroxyethylcellulose
Function:
Origin:
Sodium Hyaluronate Crosspolymer
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Sodium Acetylated Hyaluronate
Function:
Origin:
Hydrolyzed Sodium Hyaluronate
Function:
Origin:
Sodium PCA
Function:
Origin:
Erythritol
Function:
Origin:
Chondrus Crispus
Function:
Origin:
Xanthan Gum
Function:
Origin:
Ferulic Acid
Function:
Origin:
Salix Purpurea Bark Extract
Function:
Origin:
Camellia Sinensis Leaf Extract
Function:
Origin:
Alpha-Glucan Oligosaccharide
Function:
Origin:
Phenethyl Alcohol
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Glycyrrhiza Glabra (Licorice) Root Extract
Function:
Origin:
Fragrance
Function:
Origin:
Limonene
Function:
Origin:
Linalool
Function:
Origin:
Benzyl Salicylate
Function:
Origin:

Ratings

All humectants
11.3
4
2
1.5
1.3
1
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 11.3 10
10.0
4
2
1.5
1.3
1
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
4
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
All humectants 11.3 10
10
All humectants
11.3
4
2
1.5
1.3
1
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
2.5 /10 5 10 2.5
n/a
- 0.3 -
Total
2.5
Ascorbic Acid
2.5
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
in this formula, est. %
10
Camellia Sinensis Leaf Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
2.5
Ingredient Est. % Benchmark
Rich in Antioxidants
10
1.5
1
0.5
0.3
0.3
All antioxidants 13.6 3 Rich in antioxidants
All antioxidants
13.6
Ascorbic Acid
10
Sodium Hyaluronate
1.5
Hydrolyzed Sodium Hyaluronate
1
Ferulic Acid
0.5
Camellia Sinensis Leaf Extract
0.3
Glycyrrhiza Glabra (Licorice) Root Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
All soothing 0.6 5 No
All soothing
0.6
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.
Ascorbic Acid
Est. %10
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.

Glycerin
Est. %4
Function
Origin
Glycerin

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

Hydroxyethylcellulose
Est. %3
Function
Origin
HydroxyethylcelluloseA naturally-derived thickener that can form clear gel textures without the slimy feeling, unlike some other natural gel-formers.
Sodium Hyaluronate Crosspolymer
Est. %2
Function
Origin
Sodium Hyaluronate CrosspolymerA modified version of regular hyaluronic acid. It attracts large volumes of water, thereby making it an effective humectant moisturizing ingredient.
Sodium Hyaluronate
Est. %1.5
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.

Sodium Acetylated Hyaluronate
Est. %1.3
Function
Origin
Sodium Acetylated HyaluronateA chemically modified version of hyaluronic acid. It is more stable and less sticky than regular HA, while still providing the same humectant moisturizing properties (according to the manufacturer). There have been no clinical studies to confirm this.
Hydrolyzed Sodium Hyaluronate
Est. %1
Function
Origin
Hydrolyzed Sodium HyaluronateA very small-molecule version of regular sodium hyaluronate. It is a powerful humectant skin-identical ingredient that absorbs into the skin and offers plumping, smoothing, and anti-wrinkle effects.
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.
Erythritol
Est. %0.3
Function
Origin
ErythritolA naturally occurring sweetener that hydrates skin by drawing in water.
Chondrus Crispus
Est. %0.3
Function
Origin
Chondrus CrispusAn ingredient obtained from the red marine algae Irish moss. It contains a gel-forming algal polysaccharide carrageenan and is a rich source of antimicrobial iodine and sulfur. It also offers various antioxidants.
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.
Ferulic Acid
Est. %0.5
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.
Salix Purpurea Bark Extract
Est. %0.3
Function
Origin
Salix Purpurea Bark Extract
Camellia Sinensis Leaf Extract
Est. %0.3
Function
Origin
Camellia Sinensis Leaf Extract

An antioxidant green tea extract. In the deeper layers, it slows down the destruction of collagen, elastin, and hyaluronic acid – thus delaying the signs of aging. It also acts as an anti-acne, soothing, moisturizing, and emollient ingredient.

Alpha-Glucan Oligosaccharide
Est. %0.3
Function
Origin
Alpha-Glucan OligosaccharideA sugar-derived ingredient thought to provide protective benefits to the skin's microbiome which keeps skin feeling and looking healthy.
Phenethyl Alcohol
Est. %0.3
Function
Origin
Phenethyl AlcoholA multifunctional ingredient that primarily serves as a preservative. Derived from the Chinese cinnamon tree, it provides broad-spectrum protection for skincare products through its antimicrobial efficacy.
1,2-Hexanediol
Est. %0.3
Function
Origin
1,2-HexanediolA multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
Glycyrrhiza Glabra (Licorice) Root Extract
Est. %0.3
Function
Origin
Glycyrrhiza Glabra (Licorice) Root ExtractAn extract from the licorice root. It contains a well-researched anti-inflammatory compound called glycyrrhizin that can reduce inflammation. Licorice root extract is also used for its powerful antioxidant effects and ability to treat pigmentation.
Fragrance
Est. %0.3
Function
Origin
FragranceUnder trade secret law, manufacturers have the right not to disclose what exactly went into the fragrance and use the unspecific word Fragrance or Parfum instead. Many fragrances are highly allergenic.
Limonene
Est. %0.3
Function
Origin
Limonene

One of the most used fragrances in skincare products. It is produced from the peels of citrus fruits and has a fresh, pleasant, citrusy smell. People who are sensitive to citrus should try to avoid it, or at least do a patch test before using it.

Linalool
Est. %0.3
Function
Origin
LinaloolA fragrant, volatile compound naturally present in many essential oils. It has a pleasant scent and is often used in skincare products as a fragrance. People with sensitive skin should try to avoid it, or at least do a patch test before using it.
Benzyl Salicylate
Est. %0.3
Function
Origin
Benzyl Salicylate

A fragrance ingredient with a sweet, floral, and slightly balsamic scent. It is one of the twenty-six fragrances that are considered allergens according to the International Fragrance Association (IFRA), and so its use is restricted.