Herbitage C-Signature 27.5 Brightening Serum Review

Herbitage C-Signature 27.5 Brightening Serum
1.8
/ 10
Moisturizing
3.6 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
5.5Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Review

Does Herbitage C-Signature 27.5 Brightening Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Herbitage C-Signature 27.5 Brightening Serum has to offer:
 
  • A bit of moisturizing. It has a moisturizing rating of 1.8 out of 10.
  • Considerable anti-wrinkle efficacy: Herbitage C-Signature 27.5 Brightening Serum has an anti-wrinkle rating of 5.5 out of 10, indicating a moderate ability to reduce wrinkles.
  • Antioxidant protection.

Key Benefits of Herbitage C-Signature 27.5 Brightening Serum

 
These are the key benefits you can expect from using Herbitage C-Signature 27.5 Brightening Serum:
 

Slight Moisturizing When Used Alone

According to CreamScan analysis, Herbitage C-Signature 27.5 Brightening Serum is slightly moisturizing, with a moisturizing rating of 1.8 out of 10.

Is it more humectant or occlusive? Purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a moderate humectancy of 3.6 out of 10, primarily due to the high content of Ethoxydiglycol (est. ≈2.0%).

This type of product provides relatively light moisturizing on its own but can contribute to overall moisturizing efficacy when used as part of a skincare routine, alongside another moisturizer.

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.

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

Considerable Anti-Wrinkle Efficacy

According to CreamScan analysis, Herbitage C-Signature 27.5 Brightening Serum has a moderate anti-wrinkle rating of 5.5 out of 10.

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

  • Asiaticoside (est. ≈0.3%),
     derived from the plant Centella asiatica, an ingredient with moderate anti-wrinkle efficacy, as confirmed by a single clinical study involving 27 participants (Lee et al.). This study demonstrated that a cream containing 0.1% asiaticoside reduced the average wrinkle depth by 8% after 12 weeks of use, compared to a vehicle (the same formulation without asiaticoside).
  • Ascorbic Acid (est. ≈6.0%),
     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, Herbitage C-Signature 27.5 Brightening Serum also contains contains Madecassic Acid and Asiatic Acid, two ingredients often marketed as effective in reducing wrinkles. 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, 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 Herbitage C-Signature 27.5 Brightening Serum is rich (> 3%) in antioxidants, specifically 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.

Pros & Cons of Herbitage C-Signature 27.5 Brightening Serum

 
Here’s an overview of the pros and cons of Herbitage C-Signature 27.5 Brightening Serum to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • Provides relatively light moisturizing on its own but can contribute to the moisturizing efficacy of any skincare routine
  • Provides considerable anti-wrinkle efficacy thanks to Asiaticoside and Ascorbic Acid
  • Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage

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
Est. %
Water
Function:
Origin:
Ascorbic Acid
Function:
Origin:
Propylheptyl Caprylate
Function:
Origin:
Glucosamine
Function:
Origin:
Ethoxydiglycol
Function:
Origin:
PEG-40 Hydrogenated Castor Oil
Function:
Origin:
Glutathione
Function:
Origin:
Glycerin
Function:
Origin:
Ferulic Acid
Function:
Origin:
Chamomilla Recutita (Matricaria) Flower Extract
Function:
Origin:
Butylene Glycol
Function:
Origin:
Artocarpus Lakoocha Wood Extract
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Fullerenes
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Allantoin
Function:
Origin:
Disodium EDTA
Function:
Origin:
Potassium Hydroxide
Function:
Origin:
Triethanolamine
Function:
Origin:
Hydrogenated Lecithin
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Diglucosyl Gallic Acid
Function:
Origin:
Ceteareth-20
Function:
Origin:
Asiaticoside
Function:
Origin:
Madecassic Acid
Function:
Origin:
Asiatic Acid
Function:
Origin:
Polyacrylate Crosspolymer-6
Function:
Origin:

Ratings

All humectants
3.6
2
1
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
1.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 3.6 10
3.6
2
1
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
1.8
Ingredient Est. % Benchmark Humectancy
2
1
0.3
0.3
All humectants 3.6 10
3.6
All humectants
3.6
2
1
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
3 /10 0.1 0.3 3
2.5 /10 5 6 2.5
n/a
- 0.3 -
n/a
- 0.3 -
Total
5.5
Asiaticoside
3
Ingredient anti-wrinkle power
3 /10
when present at, %
0.1
in this formula, est. %
0.3
Ascorbic Acid
2.5
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
in this formula, est. %
6
Madecassic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Asiatic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
5.5
Ingredient Est. % Benchmark
Rich in Antioxidants
6
1.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 8.8 3 Rich in antioxidants
All antioxidants
8.8
Ascorbic Acid
6
Glutathione
1.3
Asiaticoside
0.3
Ferulic Acid
0.3
Chamomilla Recutita (Matricaria) Flower Extract
0.3
Artocarpus Lakoocha Wood Extract
0.3
Tocopheryl Acetate
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. %6
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.

Propylheptyl Caprylate
Est. %4
Function
Origin
Propylheptyl Caprylate
Glucosamine
Est. %3
Function
Origin
Glucosamine
Ethoxydiglycol
Est. %2
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.
PEG-40 Hydrogenated Castor Oil
Est. %1.5
Function
Origin
PEG-40 Hydrogenated Castor OilA castor oil-derived ingredient often used to incorporate small amounts of oil (such as a fragrance) into a water-based product. PEG-4 HCO is a gold-standard solubilizer and can be used in low amounts due to its ability to solubilize things so well.
Glutathione
Est. %1.3
Function
Origin
GlutathioneA naturally occurring tripeptide that combats free radicals and acts as a reducing agent.
Glycerin
Est. %1
Function
Origin
Glycerin

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

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.
Chamomilla Recutita (Matricaria) Flower Extract
Est. %0.3
Function
Origin
Chamomilla Recutita (Matricaria) Flower ExtractDerived from German chamomile flowers, this extract is especially known for its anti-inflammatory and soothing benefits. It contains two soothing compounds called chamazulene and bisabolol, as well as antioxidant flavonoids.
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.

Artocarpus Lakoocha Wood Extract
Est. %0.3
Function
Origin
Artocarpus Lakoocha Wood Extract
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.
Fullerenes
Est. %0.3
Function
Origin
Fullerenes
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.

Allantoin
Est. %0.3
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.
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.
Potassium Hydroxide
Est. %0.3
Function
Origin
Potassium HydroxideA very alkaline ingredient, meaning that it has a high pH. Potassium hydroxide is therefore useful in bringing a low pH in a cosmetic product up to a more neutral, skin-safe level.
Triethanolamine
Est. %0.3
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.
Hydrogenated Lecithin
Est. %0.3
Function
Origin
Hydrogenated LecithinA version of plain lecithin that has been saturated with hydrogen atoms. This ingredient can be derived from plants, like soy or sunflower, from egg yolks, or made synthetically. Its major function is to emulsify water and oils.
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.
Diglucosyl Gallic Acid
Est. %0.3
Function
Origin
Diglucosyl Gallic Acid
Ceteareth-20
Est. %0.3
Function
Origin
Ceteareth-20A fatty alcohol emulsifier that helps to mix oil and water together, best for oil-in-water emulsions. It is also a cleansing agent. When combined with cetearyl alcohol, ceteareth-20 forms a mix that, according to acne.org, can be comedogenic.
Asiaticoside
Est. %0.3
Function
Origin
Asiaticoside

A Gotu Kola or Centella Asiatica derivative with confirmed anti-wrinkle efficacy.

Madecassic Acid
Est. %0.3
Function
Origin
Madecassic AcidAn isolated bioactive compound from Gotu Kola. It increases collagen and hyaluronic acid production in the skin and helps to treat wounds, scars, and burns.
Asiatic Acid
Est. %0.3
Function
Origin
Asiatic AcidA compound isolated from Gotu Kola, a promising anti-wrinkle medicinal plant from Southeast Asia. It is claimed to increase the production of collagen and help with the wound healing process.
Polyacrylate Crosspolymer-6
Est. %0.3
Function
Origin
Polyacrylate Crosspolymer-6A polymeric ingredient that works best in water-based formulas to create gel textures. It helps to stabilize emulsions and control viscosity.