NARS Optimal Brightening Concentrate Facial Serum Review

NARS Optimal Brightening Concentrate Facial Serum
6.5
/ 10
Moisturizing
9.8 Humectancy icon Humectancy
3.2 Occlusivity icon Occlusivity
Review

Does NARS Optimal Brightening Concentrate Facial Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what NARS Optimal Brightening Concentrate Facial Serum has to offer:
 
✅ Significant moisturizing. It has a moisturizing rating of 6.5 out of 10.

  

Key Benefits of NARS Optimal Brightening Concentrate Facial Serum

 
These are the key benefits you can expect from using NARS Optimal Brightening Concentrate Facial Serum:
 

🔵 Lightweight Moisturizer Perfect for Combination and Oily Skin

According to CreamScan analysis, NARS Optimal Brightening Concentrate Facial Serum is highly moisturizing, with a moisturizing rating of 6.5 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a very high humectancy of 9.8 out of 10, primarily due to the substantial concentration of Butylene Glycol (est. ≈4.0%) and Glycerin (est. ≈3.0%), and a moderate occlusivity of 3.2 out of 10, mainly due to the significant content of Dimethicone (est. ≈6.0%).

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

This product may also be a good choice for people with normal skin who prefer fast-absorbing textures, as it balances significant moisturizing potential with a relatively lightweight texture.

💧 A Humectant Boost for Any Skincare Routine

But it’s not limited to combination and 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.

📌 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: NARS Optimal Brightening Concentrate Facial Serum

 
CreamScan AI identified a few things to consider before adding NARS Optimal Brightening Concentrate Facial Serum to your skincare routine:
 

⚠️ Questionable anti-wrinkle efficacy

If one of your main reasons for choosing NARS Optimal Brightening Concentrate Facial 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 rule out 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 available 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 NARS Optimal Brightening Concentrate Facial Serum

 
Here’s an overview of the pros and cons of NARS Optimal Brightening Concentrate Facial Serum to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides humectant-rich moisturizing perfect for combination and oily skin
✅ Also a good choice for people with normal skin who prefer fast-absorbing textures
✅ As part of a routine: A humectant moisturizing boost, beneficial for any skin type
✅ Lightweight texture
 

⭕ Cons: 

⚠️ Questionable anti-wrinkle efficacy
   

Summary: NARS Optimal Brightening Concentrate Facial Serum

 
Based on the ingredient list analysis, CreamScan AI suggests that NARS Optimal Brightening Concentrate Facial Serum
, when used alone, delivers lightweight, humectant-rich moisturizing, perfect for combination and oily skin. It's also a great option for those with normal skin who prefer fast-absorbing textures. As part of a moisturizing routine, it provides a humectant boost, beneficial for all skin types.
 
That said, there are some things about NARS Optimal Brightening Concentrate Facial Serum worth noting.
 
If one of your main reasons for considering NARS Optimal Brightening Concentrate Facial Serum is its potential anti-aging effects, please note that, according to CreamScan analysis, its anti-wrinkle efficacy is questionable. None of the ingredients in this product provide substantial evidence of their anti-wrinkle efficacy according to CreamScan Research Evaluation Standards.
 
❗️ Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible.

 

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
0.15
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Dimethicone
Function:
Origin:
Butylene Glycol
Function:
Origin:
Glycerin
Function:
Origin:
Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer
Function:
Origin:
Hydrogenated Polyisobutene
Function:
Origin:
PEG-10 Dimethicone
Function:
Origin:
PEG-32
Function:
Origin:
PEG-6
Function:
Origin:
3-O-Ethyl Ascorbic Acid
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Sodium Citrate
Function:
Origin:
Fragrance
Function:
Origin:
Citric Acid
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Dimethicone/Vinyl Dimethicone Crosspolymer
Function:
Origin:
Hydrolyzed Viola Tricolor Extract
Function:
Origin:
Sea Water
Function:
Origin:
Potassium Hydroxide
Function:
Origin:
Agar
Function:
Origin:
Saccharomyces Cerevisiae Extract
Function:
Origin:
Polysilicone-2
Function:
Origin:
Trisodium EDTA
Function:
Origin:
Algae Extract
Function:
Origin:
Barium Sulfate
Function:
Origin:
Morinda Citrifolia Leaf Extract
Function:
Origin:
Thymus Serpyllum Extract
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Tocopherol
Function:
Origin:
Plankton Extract
Function:
Origin:
Alumina
Function:
Origin:
Citral
Function:
Origin:
Geraniol
Function:
Origin:
Linalool
Function:
Origin:
Limonene
Function:
Origin:
Mica
Function:
Origin:
Titanium Dioxide (CI 77891)
Function:
Origin:
Iron Oxides (CI 77492)
Function:
Origin:

Ratings

All humectants
9.8
4
3
1
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
6.3
6.0
0.3
Benchmark
20
Moisturizing rating
6.5
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 9.8 10
9.8
4
3
1
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 6.3 20
3.2
6.0
0.3
Moisturizing rating
6.5
Ingredient Est. % Benchmark Humectancy
4
3
1
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 9.8 10
9.8
All humectants
9.8
4
3
1
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
6
0.3
All occlusives 6.3 20
3.2
All occlusives
6.3
6.0
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 0.3 -
Total
0
3-O-Ethyl Ascorbic Acid
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
All antioxidants 0.9 3 No
All antioxidants
0.9
3-O-Ethyl Ascorbic Acid
0.3
Algae Extract
0.3
Tocopherol
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
None
All soothing 0 5 No
All soothing
0
None
Benchmark
5

Ingredients explained

Water
Est. %70
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.
Dimethicone
Est. %6
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.
Butylene Glycol
Est. %4
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.

Glycerin
Est. %3
Function
Origin
Glycerin

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

Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer
Est. %2
Function
Origin
Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer
Hydrogenated Polyisobutene
Est. %1.5
Function
Origin
Hydrogenated PolyisobuteneA viscous liquid that makes a great oil base due to its smooth sensorial profile. It has emollient features, including good spreadability and little tack upon application. It also has the added benefit of being able to thicken products.
PEG-10 Dimethicone
Est. %1.3
Function
Origin
PEG-10 DimethiconeA polyethylene-based emulsifying ingredient. It has a water-loving portion and an oil-loving portion that help to keep the water and oil phases connected to form an emulsion.
PEG-32
Est. %1
Function
Origin
PEG-32A synthetic water-loving moisturizer that produces water gels.
PEG-6
Est. %0.3
Function
Origin
PEG-6A synthetic alcohol that moisturizes skin and dissolves many other ingredients.
3-O-Ethyl Ascorbic Acid
Est. %0.3
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.
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.
Sodium Citrate
Est. %0.3
Function
Origin
Sodium CitrateA 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.
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.
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.
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.
Dimethicone/Vinyl Dimethicone Crosspolymer
Est. %0.3
Function
Origin
Dimethicone/Vinyl Dimethicone CrosspolymerThis ingredient can refer to several kinds of dimethicone crosspolymers. Like other silicones, it makes products feel slippery and non-greasy but can also increase the thickness or improve the water-resistance of a formula.
Hydrolyzed Viola Tricolor Extract
Est. %0.3
Function
Origin
Hydrolyzed Viola Tricolor Extract
Sea Water
Est. %0.3
Function
Origin
Sea WaterA water obtained from oceans, seas, and large saltwater lakes. The water has been purified, and what remains is a complex mixture of various mineral salts that have beneficial effects on the skin. Sea water is used as a humectant and a solvent.
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.
Agar
Est. %0.3
Function
Origin
AgarA multifunctional jelly derived from red algae that can thicken water-based products.
Saccharomyces Cerevisiae Extract
Est. %0.3
Function
Origin
Saccharomyces Cerevisiae ExtractA fungi ingredient made from baker's yeast. It is moisturizing and contains various beneficial compounds that support skin health. Among these is beta-glucan, the praised wound healing polysaccharide.
Polysilicone-2
Est. %0.3
Function
Origin
Polysilicone-2
Trisodium EDTA
Est. %0.3
Function
Origin
Trisodium EDTAA chelating agent designed to encapsulate potentially harmful heavy metal ions that enter the formula through the water source. Once encapsulated, these heavy metal ions become inert.
Algae Extract
Est. %0.3
Function
Origin
Algae ExtractThe name describes any extract made from any kind of algae. Algae extracts are moisturizing humectants – the gelatin-like polysaccharides bind and retain water, thereby hydrating the skin. Algae is a rich source of emollient and antioxidant compounds.
Barium Sulfate
Est. %0.3
Function
Origin
Barium Sulfate
Morinda Citrifolia Leaf Extract
Est. %0.3
Function
Origin
Morinda Citrifolia Leaf Extract
Thymus Serpyllum Extract
Est. %0.3
Function
Origin
Thymus Serpyllum Extract
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA 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.
Tocopherol
Est. %0.3
Function
Origin
Tocopherol

Simply another name for vitamin E. Tocopherol is a fantastic ingredient and especially beneficial for dry and inflamed skin. It has occlusive moisturizing, emollient, antioxidant, and photoprotective properties.

Plankton Extract
Est. %0.3
Function
Origin
Plankton ExtractAn extract from a mixture of various tiny marine animals, algae, seaweeds, and microscopic organisms jointly called plankton. One patent refers to it as a moisturizing humectant ingredient.
Alumina
Est. %0.3
Function
Origin
AluminaA mineral derived from the metal ore known as aluminum. It is commonly used as an abrasive and also acts as a thickening viscosity controlling agent (and thus as a bulking agent). Alumina is also a great opacifier.
Citral
Est. %0.15
Function
Origin
Citral

A fragrant compound found in many essential oils (especially lemon myrtle and lemongrass essential oil). It has a sweet, lemon-like scent. People with sensitive skin should try to avoid products with citral, or at least do a patch test before using.

Geraniol
Est. %0.3
Function
Origin
Geraniol

A fragrant, volatile, plant-based, liquid chemical that can be naturally found in many essential oils (specifically rose, palmarosa, citronella). It has a rose-like scent. It is a potential irritant and may cause an allergic reaction in some people.

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.
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.

Mica
Est. %0.3
Function
Origin
MicaA mineral powder made up of silicates with several functions (the main one being as a colorant). It has a shimmery appearance, making it highly desirable in certain cosmetic products. Mica also helps the product to apply more smoothly.
Titanium Dioxide (CI 77891)
Est. %0.3
Function
Origin
Titanium Dioxide (CI 77891)One of two the most commonly used mineral sunscreens. It can absorb UV light, including UVB – which causes burning, tanning, and even skin cancer. Also used as a colorant, titanium dioxide gives a product a bright white color.
Iron Oxides (CI 77492)
Est. %0.3
Function
Origin
Iron Oxides (CI 77492)Also known as iron (III) oxide, this ingredient is a yellow-colored pigment that can either be derived from minerals or produced synthetically. It adds yellow tones to cosmetic products.