The INKEY List - Caffeine Eye Serum

The INKEY List Caffeine Eye Serum

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Can it work? Irritants Ingredient concentrations Sources Similar products Q&A Where to buy
WORKS FOR
  • Moisturizing
  • Anti-aging
KEY INGREDIENTS
  • palmitoyl tetrapeptide-7
  • palmitoyl tripeptide-1
  • caffeine
  • cetyl alcohol
  • glycerin
  • glycine soja sterols
  • hyaluronic acid
  • jojoba esters
  • phospholipids
  • squalane
  • +7 more
PROMISES
FULFILLED
75 /100
IRRITANCY
LOW
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Where to buy?

In stock $32.90
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Formula review

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What does the product description say?
"This revitalising serum boasts a Matrixyl 3000 peptide with Albizia Julibrissin Bark Extract to stimulate collagen production, helping to combat fine lines and wrinkles."
Mankind
WIMJ summary

This product contains palmitoyl tetrapeptide-7. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

Ingredient Effectiveness Concentration Irritancy
MEDIUM
meets threshold
LOW
meets threshold
MEDIUM
does not meet threshold
See a mistake?
WIMJ summary

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. 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. The following ingredients in this product do the job: glycerin, hyaluronic acid.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: squalane, glycine soja sterols.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: palmitoyl tetrapeptide-7

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold

Potential irritants

Ingredients by volume

Ingredient Estimated concentration
Plain old water
40% - 60%
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
4.1% - 6.1%
Helps products spread more easily and works as an emollient to soften skin
3.6% - 5.5%
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
2.7% - 4%
Helps oil and water mix together while softening the upper layer of the skin
2% - 3%
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
1.7% - 2.5%
A gelling agent that thickens the product consistency and leaves the skin with a velvety finish
1.4% - 2.1%
An emollient made of jojoba oil. Helps soften the skin and support its barrier function
1.3% - 1.9%
1% - 1.6%
A plant extract that might help to neutralize free radicals in skin. Is claimed to help reduce hyperpigmentation but evidence is missing
0.6% - 1.35%
An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.
0.5% - 1.2%
Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes
0.4% - 0.9%
Helps water and oil mix together. Could be an allergen (beeswax)
0.35% - 0.85%
Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product
0.3% - 0.75%
Used to create a thicker product consistency and soften the upper layer of the skin
0.3% - 0.75%
A preservative
0.2% - 0.8%
Used to create a thicker product consistency
0.2% - 0.75%
0.15% - 0.65%
Helps oil and water mix together
0.15% - 0.7%
Stabilizes the product formulation
0.15% - 0.55%
Used to create a thicker product consistency and help soften the upper layer of the skin
0.15% - 0.65%
0.1% - 0.5%
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
0.1% - 0.4%
An emollient that helps soften the skin
0.15% - 0.5%
A preservative that comes from radishes fermented by a bacteria. New research suggests that the preservation properties in the ingredient come from an ammonium salt that is not present naturally in radish root but used in its cultivation. Is problematic because the exact amount of the preservative agents is difficult to determine
0.1% - 0.4%
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation
0.1% - 0.35%
Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations
0.1% - 0.3%
0.05% - 0.25%
Helps oil and water mix together
0.05% - 0.25%
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
0.05% - 0.25%
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
0.05% - 0.2%
A preservative. It helps prevent bacterial growth in cosmetic products
0.05% - 0.15%
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