Gueri Eyes illuminate Intense Firming Serum

Gueri Eyes illuminate Intense Firming Serum

Efficacy37/100IrritancyLow

Works for

Moisturizing
Glycerin, Propylene glycol
Works
What the product description says
“The moisturizing serum also has a lifting effect on the eyelid area.”
Source: N/A

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, propylene glycol.

When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4–6.1%
Propylene glycol· HumectantEffect: LowHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating~3.5–5.2%
Anti-aging
No ingredient credited for this claim
Not delivered
What the product description says
“The advanced formula of active natural ingredients has a firming effect on fine lines, while dark circles are significantly reduced.”
Source: N/A

Effective ingredients missing or their concentration is too low.

Can it cause trouble?

Irritancy
4 flagged ingredients
Low risk
We flag 4 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~3.5–5.2%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.55–1.35%est.
Acrylates/c10-30 alkyl acrylate crosspolymerMaintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix togetherMedium~0.15–0.5%est.
Potassium sorbateA preservativeMedium~0.05–0.25%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4–6.1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Propylene glycol~3.5–5.2%
Irritant · high
Irritation risk
High
Works for
Moisturizing

Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating

More about Propylene glycol
Propanediol~2.7–4%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Jasminum sambac flower extract~1.8–2.7%
Formula
Leontopodium alpinum flower/leaf extract~1.4–2.1%
Formula
Crataegus monogyna flower extract~0.95–1.45%
Formula
Citric acid~0.55–1.35%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Sodium hydroxide~0.2–0.75%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Acrylates/c10-30 alkyl acrylate crosspolymer~0.15–0.5%
Irritant · medium
Irritation risk
Medium

Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together

More about Acrylates/c10-30 alkyl acrylate crosspolymer
Sodium benzoate~0.05–0.3%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Potassium sorbate~0.05–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Ingredient list view

Water, Glycerin, Propylene glycol, Propanediol, Jasminum sambac flower extract, Leontopodium alpinum flower/leaf extract, Crataegus monogyna flower extract, Citric acid, Sodium hydroxide, Acrylates/c10-30 alkyl acrylate crosspolymer, Sodium benzoate, Potassium sorbate

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
GueriEyes illuminate Intense Firming SerumYOUR PRODUCTMeaningful BeautyYouth Activating Smoothing and Refreshing Eye SerumThe OrdinaryCaffeine Solution 5% + EGCGPhilosophyTime in a Bottle Eye Serum
Match—37%36%31%
Price—$60.00$5.75$49.24
Shared key ingredients—1 of 11 of 11 of 1
Key difference—Oatmeal ExtractCaffeineRetinyl Palmitate
Irritancy Low Low Low High
Drying alcohol——— Contains drying alcohol
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Product summary

"Gueri - Eyes illuminate Intense Firming Serum" could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • Humectants (glycerin 4.00% - 6.10%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 4 studies and safety reviews.

  1. 1
  2. 2
  3. 3
    Propylene Glycolpubmed.ncbi.nlm.nih.gov
  4. 4
Gueri Eyes illuminate Intense Firming Serum
GueriEyes illuminate Intense Firming Serum

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.