Q + A Caffeine Eye Serum Review

Q + A Caffeine Eye Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
Review

Does Q + A Caffeine Eye Serum Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Q + A Caffeine Eye 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.

Key Benefits of Q + A Caffeine Eye Serum

 
These are the key benefits you can expect from using Q + A Caffeine Eye Serum:
 

Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, Q + A Caffeine Eye 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 Propylene Glycol (est. ≈6.0%), Betaine (est. ≈4.0%) and Pentylene Glycol (est. ≈3.0%).

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.

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: Q + A Caffeine Eye Serum

 
CreamScan AI identified a few things to consider before adding Q + A Caffeine Eye Serum to your skincare routine:
 

If It’s an Exfoliator, It May Increase Skin Photosensitivity Due to Lactic Acid

This product contains lactic acid, a popular AHA known for its ability to gently exfoliate and brighten the skin. It works by removing dead skin cells, revealing new, more delicate skin that is more vulnerable to sun damage.

In smaller quantities, lactic acid is often used as a pH adjuster and may not significantly contribute to exfoliation. However, at higher concentrations, it functions as an effective exfoliant with benefits and risks similar to other AHAs. Products with AHAs, including lactic acid, may increase skin sensitivity, making it more prone to sunburn or irritation when exposed to UV rays.

If this product is designed for exfoliation, applying a broad-spectrum sunscreen with at least SPF 30 daily is essential to protect your skin. Always check the label or the manufacturer’s website for specific usage instructions.

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 Q + A Caffeine Eye 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 Q + A Caffeine Eye Serum is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains some ingredients often marketed as effective in reducing wrinkles, specifically Caffeine, Camellia Sinensis Leaf Extract, and Lactobacillus Ferment. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards. 

While this does not categorically exclude the possibility that these ingredients may reduce wrinkles, their 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, these ingredients do 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 Q + A Caffeine Eye Serum

 
Here’s an overview of the pros and cons of Q + A Caffeine Eye Serum 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

Cons: 

  • Only if used as a standalone moisturizer - it needs to be paired with occlusives to seal in humectants
  • 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
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Propylene Glycol
Function:
Origin:
Betaine
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Caffeine
Function:
Origin:
Cucumis Sativus (Cucumber) Fruit Water
Function:
Origin:
Collagen
Function:
Origin:
Biosaccharide Gum-1
Function:
Origin:
Camellia Sinensis Leaf Extract
Function:
Origin:
Punica Granatum Extract
Function:
Origin:
Lonicera Caprifolium (Honeysuckle) Extract
Function:
Origin:
Lonicera Japonica (Honeysuckle) Leaf Extract
Function:
Origin:
Cocoyl Proline
Function:
Origin:
Lactobacillus Ferment Filtrate
Function:
Origin:
Leuconostoc/Radish Root Ferment Filtrate
Function:
Origin:
Sodium Phytate
Function:
Origin:
Glycerin
Function:
Origin:
Lactobacillus Ferment
Function:
Origin:
Xanthan Gum
Function:
Origin:
Alcohol
Function:
Origin:
Sodium Levulinate
Function:
Origin:
Sodium Hydroxide
Function:
Origin:
Glyceryl Caprylate
Function:
Origin:
Sodium Anisate
Function:
Origin:
Lactic Acid
Function:
Origin:

Ratings

All humectants
16.2
6
4
3
1.3
1
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 16.2 10
10.0
6
4
3
1.3
1
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
3
1.3
1
0.3
0.3
0.3
All humectants 16.2 10
10
All humectants
16.2
6
4
3
1.3
1
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
- 2 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
0
Caffeine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
2
Camellia Sinensis Leaf Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Lactobacillus Ferment
-
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
2
0.3
0.3
0.3
All antioxidants 2.9 3 No
All antioxidants
2.9
Caffeine
2
Camellia Sinensis Leaf Extract
0.3
Punica Granatum Extract
0.3
Lactobacillus Ferment Filtrate
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.
Propylene Glycol
Est. %6
Function
Origin
Propylene GlycolA clear, thick, odorless liquid of synthetic origin. Its main function is to stabilize cosmetic products exposed to varying temperatures. It is also a moderately strong humectant with similar properties to glycerin.
Betaine
Est. %4
Function
Origin
BetaineAn ingredient derived from the sucrose in sugar beets. It has a negative chemical charge and a positive chemical charge on the same molecule. This allows betaine to be hygroscopic or humectant and thus provide moisturization by drawing water to the skin.
Pentylene Glycol
Est. %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.

Caffeine
Est. %2
Function
Origin
CaffeineAn antioxidant compound that is obtained from coffee and tea leaves. It increases the microcirculation of blood in the skin and is claimed to be able to reduce the appearance of orange peel skin (although the research is lacking).
Cucumis Sativus (Cucumber) Fruit Water
Est. %1.5
Function
Origin
Cucumis Sativus (Cucumber) Fruit Water
Collagen
Est. %1.3
Function
Origin
CollagenA protein that builds all human tissues, especially skin and joints. It is used as a moisturizing humectant ingredient in skincare.
Biosaccharide Gum-1
Est. %1
Function
Origin
Biosaccharide Gum-1A polysaccharide with humectant moisturizing and soothing properties.
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.

Punica Granatum Extract
Est. %0.3
Function
Origin
Punica Granatum ExtractAn extract made from pomegranate fruit. The fleshy and juicy part of the fruit mainly contains antioxidant red pigments and polyphenols. The rinds contain large amounts of tannins, which are astringent and leave the skin feeling tightened and refreshed.
Lonicera Caprifolium (Honeysuckle) Extract
Est. %0.3
Function
Origin
Lonicera Caprifolium (Honeysuckle) Extract
Lonicera Japonica (Honeysuckle) Leaf Extract
Est. %0.3
Function
Origin
Lonicera Japonica (Honeysuckle) Leaf Extract
Cocoyl Proline
Est. %0.3
Function
Origin
Cocoyl Proline
Lactobacillus Ferment Filtrate
Est. %0.3
Function
Origin
Lactobacillus Ferment Filtrate
Leuconostoc/Radish Root Ferment Filtrate
Est. %0.3
Function
Origin
Leuconostoc/Radish Root Ferment FiltrateA biotechnological fermentation ingredient that is created by feeding radish root to Leuconostoc kimchii. It allegedly contains organic acids and a mixture of peptides known as bacteriocins – which have antimicrobial activity.
Sodium Phytate
Est. %0.3
Function
Origin
Sodium PhytateSodium phytate is a chelating agent that serves to remove heavy metal ions from water. Removing metal ions helps other ingredients, such as antioxidants and preservatives, to perform better and keep products from separating.
Glycerin
Est. %0.3
Function
Origin
Glycerin

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

Lactobacillus Ferment
Est. %0.3
Function
Origin
Lactobacillus FermentA biotechnological product – a mixture of metabolic products of Lactobacillus culture. Some Lactobacillus forms have been reported to have anti-wrinkle and barrier repairing effects, as well as able to improve skin hydration, elasticity, and gloss.
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.
Alcohol
Est. %0.3
Function
Origin
AlcoholAn effective antimicrobial ingredient that kills bacteria, fungi, and even some viruses. It is also an excellent solvent and astringent. Alcohol helps to create lighter and less viscous products. It can, however, be dehydrating and skin-sensitizing.
Sodium Levulinate
Est. %0.3
Function
Origin
Sodium LevulinateA sodium salt of levulinic acid that is used as an antimicrobial and preservative agent, inhibiting the growth of harmful bacteria in a product.
Sodium Hydroxide
Est. %0.3
Function
Origin
Sodium Hydroxide

An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.

Glyceryl Caprylate
Est. %0.3
Function
Origin
Glyceryl CaprylateA waxy solid derived from vegetable oils that has emollient and emulsifying properties. It is also known to boost the efficacy of organic acid preservatives by destabilizing the microbe's cell membrane.
Sodium Anisate
Est. %0.3
Function
Origin
Sodium AnisateA natural preservative with a sweet scent.
Lactic Acid
Est. %0.3
Function
Origin
Lactic AcidThe most popular AHA in skincare and less irritating than glycolic acid. It can be naturally found in sour milk. It is a humectant moisturizing, pH stabilizing, and gently exfoliating ingredient, able to soften dry, cracked, and peeling skin.