"Kosas - Plump Juicy Lip Booster Lip Treatment" is a well-rounded moisturizing product. As we expect from a proper moisturizer, the formula includes a combo of effective humectants and emollients. These are the two different types of ingredients that are essential for improving the skin hydration and supporting a healthy skin barrier. Humectants in this product (polyglycerin-3 and sodium hyaluronate) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Emollients in this formulation (palmitoyl tripeptide-1, helianthus annuus seed wax, jojoba esters, bis-diglyceryl polyacyladipate-2 and butyrospermum parkii butter) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.
Ingredient callouts
We like that this moisturizer contains peptides (palmitoyl tripeptide-1 0.40% - 0.90%). There are many different kind of peptides and they are naturally present in our skin. They all are a combination of amino-acids. Some of them work as natural anti-biotics, promote wound-healing and production of collagen. The science is still not settled on how effective peptides in skincare are, but it is very likely that they have a benefit. Peptides might help restore the skin barrier and fight the signs of aging. At the very least, peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
Irritation risk
This formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of this lip product to be medium. For a detailed overview of all potential irritants: click here
You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.
About the brand
According to Cruelty-Free Kitty "Kosas" is cruelty free and so is its parent company.
This product contains palmitoyl tripeptide-1.
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.
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
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:
polyglycerin-3, sodium hyaluronate.
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:
bis-diglyceryl polyacyladipate-2, butyrospermum parkii butter.
The following ingredients in this product are especially good for supporting the skin barrier and helping with
the hydration level: palmitoyl tripeptide-1
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
A great moisturizing ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
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Honesty check
How honest is this product?
Promise
Can it deliver?
Moisturizing
Anti-aging
Total Promises Fulfilled score:
87/100.
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US Retailers
$25.00
In stock
Size: 0.03125 Pounds
Kosas Plump + Juicy Lip Booster Buttery Treatment 0.5 oz / 15 mL
Price as of 3/11/2024 0:49 GMT.
More info
AU Retailers
A$51.69
In stock
Size: 0.03125 Pounds
Kosas Plump + Juicy Lip Booster Buttery Treatment 0.5 oz / 15 mL
A plant oil with high content of volatile compounds that can irritate the skin. Can be used as a fragrance. Has anti-bacterial properties and might help neutralize free radicals on the surface of the skin
Works for:
Moisturizing,
Anti-oxidation,
Anti-aging
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
Works for:
Moisturizing,
Anti-oxidation,
Anti-aging
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
A plant oil that can help soften the skin. It might be helpful in calming down inflammation, but solid research is lacking. Is often used in lip products to create the needed product consistency
A plant oil with high content of volatile compounds that can irritate the skin. Can be used as a fragrance. Has anti-bacterial properties and might help neutralize free radicals on the surface of the skin
Works for:
Moisturizing,
Anti-oxidation,
Anti-aging
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
A plant oil that can help soften the skin. It might be helpful in calming down inflammation, but solid research is lacking. Is often used in lip products to create the needed product consistency
Works for:
Moisturizing,
Anti-oxidation,
Anti-aging
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
