For Skins Sake (FSS) Vitamin C Serum Review

For Skins Sake (FSS) Vitamin C Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
Rich
in Antioxidants
Review

Does For Skins Sake (FSS) Vitamin C Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what For Skins Sake (FSS) Vitamin C Serum 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.
  • Antioxidant protection.

Key Benefits of For Skins Sake (FSS) Vitamin C Serum

 
These are the key benefits you can expect from using For Skins Sake (FSS) Vitamin C Serum:
 

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, For Skins Sake (FSS) Vitamin C Serum 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 Ethoxydiglycol (est. ≈4.0%), Butylene Glycol (est. ≈3.0%) and Panthenol (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.

Rich in Skin-Protecting Antioxidants

We estimate that For Skins Sake (FSS) Vitamin C Serum is rich (> 3%) in antioxidants, specifically 3-O-Ethyl Ascorbic Acid (est. ≈6.0%).

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: For Skins Sake (FSS) Vitamin C Serum

 
CreamScan AI identified a few things to consider before adding For Skins Sake (FSS) Vitamin C Serum 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 For Skins Sake (FSS) Vitamin C Serum 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.

Questionable anti-wrinkle efficacy

If one of your main reasons for choosing For Skins Sake (FSS) Vitamin C Serum is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains 3-O-Ethyl Ascorbic Acid, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of 3-O-Ethyl Ascorbic Acid provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards.

While this does not categorically exclude the possibility that 3-O-Ethyl Ascorbic Acid may reduce wrinkles, its efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were accessible to the CreamScan team at the time of publication.

Therefore, this ingredient does 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, 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.

Pros & Cons of For Skins Sake (FSS) Vitamin C Serum

 
Here’s an overview of the pros and cons of For Skins Sake (FSS) Vitamin C Serum to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • Humectant-rich moisturizing ideal for oily skin
  • Lightweight texture
  • A humectant moisturizing boost for any skincare routine
  • Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage such as UV radiation and pollution

Cons: 

  • Needs occlusives to seal in humectants if used as a standalone moisturizer
  • Questionable anti-wrinkle efficacy

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
Est. %
Water
Function:
Origin:
3-O-Ethyl Ascorbic Acid
Function:
Origin:
Ethoxydiglycol
Function:
Origin:
Butylene Glycol
Function:
Origin:
Panthenol
Function:
Origin:
Triethanolamine
Function:
Origin:
Ferulic Acid
Function:
Origin:
Allantoin
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Glycerin
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Lactobacillus/Lemon Peel Ferment Extract
Function:
Origin:
Citrus Aurantium Dulcis (Orange) Peel Extract
Function:
Origin:
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Function:
Origin:
Tranexamic Acid
Function:
Origin:
Tranexamoyl Dipeptide-22
Function:
Origin:
Nicotinoyl Dipeptide-22
Function:
Origin:
Bifida Ferment Lysate
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Sodium Bisulfite
Function:
Origin:

Ratings

All humectants
11.2
4
3
2
1
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 11.2 10
10.0
4
3
2
1
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
3
2
1
0.3
0.3
0.3
0.3
All humectants 11.2 10
10
All humectants
11.2
4
3
2
1
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
n/a
- 6 -
Total
0
3-O-Ethyl Ascorbic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
6
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
6
1.3
0.3
0.3
0.3
All antioxidants 8.2 3 Rich in antioxidants
All antioxidants
8.2
3-O-Ethyl Ascorbic Acid
6
Ferulic Acid
1.3
Sodium Hyaluronate
0.3
Tocopheryl Acetate
0.3
Sodium Bisulfite
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
2
1
0.3
All soothing 3.3 5 No
All soothing
3.3
2
1
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.
3-O-Ethyl Ascorbic Acid
Est. %6
Function
Origin
3-O-Ethyl Ascorbic AcidA 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.
Ethoxydiglycol
Est. %4
Function
Origin
EthoxydiglycolA type of alcohol with humectant moisturizing properties. It also acts as a solvent, since it mixes well with a variety of other compounds, including water and even some oils.
Butylene Glycol
Est. %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.

Panthenol
Est. %2
Function
Origin
PanthenolA popular soothing and moisturizing derivative of vitamin B5. Panthenol is particularly beneficial for dry, flaking, burned, or damaged skin. It is used to alleviate the symptoms of a rash, dermatitis, eczema, chapped lips, and sunburn.
Triethanolamine
Est. %1.5
Function
Origin
TriethanolamineA clear, colorless, and highly viscous liquid, this ingredient is an excellent pH adjuster. When it is necessary to neutralize an acidic solution or to generally increase the pH of a product, triethanolamine is a common choice.
Ferulic Acid
Est. %1.3
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.
Allantoin
Est. %1
Function
Origin
AllantoinA fluffy, white powder that acts as a humectant due to its water-loving chemistry and as an exfoliant that helps to remove dead skin cells. It has also been shown to be very soothing to irritated and inflamed skin.
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.
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.

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.

Glycerin
Est. %0.3
Function
Origin
Glycerin

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

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.

Lactobacillus/Lemon Peel Ferment Extract
Est. %0.3
Function
Origin
Lactobacillus/Lemon Peel Ferment Extract
Citrus Aurantium Dulcis (Orange) Peel Extract
Est. %0.3
Function
Origin
Citrus Aurantium Dulcis (Orange) Peel Extract

Citrus aurantium dulcis peel extract is the same extract as Citrus aurantium dulcis (orange) fruit extract. It has antioxidant properties and gives a skincare product a fresh orange scent. It also works as a thickener due to its pectin content. Read more about the extract here: Citrus Aurantium Dulcis (Orange) Fruit Extract.

Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Est. %0.3
Function
Origin
Acrylates/C10-30 Alkyl Acrylate CrosspolymerA synthetic ingredient that is used to thicken water and alcohol. It results in a more lightweight formula and is commonly found in gel products.
Tranexamic Acid
Est. %0.3
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.
Tranexamoyl Dipeptide-22
Est. %0.3
Function
Origin
Tranexamoyl Dipeptide-22
Nicotinoyl Dipeptide-22
Est. %0.3
Function
Origin
Nicotinoyl Dipeptide-22
Bifida Ferment Lysate
Est. %0.3
Function
Origin
Bifida Ferment LysateA mixture of probiotic bacteria. According to the patent holder, it contains enzymes that are able to repair damaged DNA in skin cells. A single study confirms that it is able to reduce skin sensitivity.
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.
Sodium Bisulfite
Est. %0.3
Function
Origin
Sodium BisulfiteAn inorganic salt that kills bacteria and protects against oxidation.