Zelens Z Firm Lifting Face & Neck Cream

Z Firm Lifting Face & Neck Cream

Efficacy 75/100·High irritancy

Efficacy measures how well the formula delivers the claims the brand advertises · 2 of 2 advertised claims delivered

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Product claims breakdown

Anti-aging
TETRADECYL AMINOBUTYROYLVALYLAMINOBUTYRIC UREA TRIFLUOROACETATE at ~0.25–0.45% + 1 more curated active
Good evidence

This product contains tetradecyl aminobutyroylvalylaminobutyric urea trifluoroacetate. 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.

TETRADECYL AMINOBUTYROYLVALYLAMINOBUTYRIC UREA TRIFLUOROACETATERole: Key activeA peptide. It helps attract water to the upper layer of the skin, support skin's barrier function and might have some slight anti-aging effect through stimulating skin's own production of hyaluronic acid~0.25–0.45%
TOCOPHEROLRole: Key activePure 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~0.25–0.45%
GlycerinRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.7–5.7%
Glyceryl stearate seRole: Key activeUsed to stabilize the product formulations and works as an emollient~3.7–4.6%
DimethiconeRole: Key activeA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~2.4–2.9%
Caprylic/capric triglycerideRole: Key activeA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~1.7–2%
Cetearyl alcoholRole: Key activeA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~1.5–1.8%
Ethylhexyl palmitateRole: Key activeAn emollient that helps soften the skin and create a nice product texture~1.2–1.5%
Macadamia ternifolia seed oilRole: Key activePlant oil from nuts that helps soften the upper layer of the skin. Contains a high concentration of oleic acid that can weaken skin's barrier function and increase water-loss while enhancing penetration of other ingredients~0.7–1.05%
Glycine soja seed extractRole: Key activeAn emollient that helps soften the skin. Might be somewhat helpful in evening the skin tone.~0.25–0.45%
Centella asiatica flower/leaf/stem extractRole: Key activeA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.~0.2–0.35%
Crithmum maritimum extractRole: Key activeAn algae extract that might have anti-oxidant properties~0.15–0.3%
Helianthus annuus seed oilRole: Key activeA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~0.2–0.35%
Moisturizing
9 ingredients contribute at the levels below
Good evidence

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, peg-8.

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: caprylic/capric triglyceride, dimethicone.

CAMELLIA OLEIFERA SEED OILRole: Under-dosedAn emollient that does not leave a greasy finish~0.45–0.65%
CAPRYLIC/CAPRIC TRIGLYCERIDERole: Key activeA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~1.7–2%
CENTELLA ASIATICA FLOWER/LEAF/STEM EXTRACTRole: Key activeA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.~0.2–0.35%
DIMETHICONERole: Key activeA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~2.4–2.9%
GLYCERINRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.7–5.7%
HELIANTHUS ANNUUS SEED OILRole: Key activeA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~0.2–0.35%
PRUNUS ARMENIACA KERNEL OILRole: Under-dosedAn emollient that helps soften the skin~0.6–0.9%
TETRADECYL AMINOBUTYROYLVALYLAMINOBUTYRIC UREA TRIFLUOROACETATERole: Key activeA peptide. It helps attract water to the upper layer of the skin, support skin's barrier function and might have some slight anti-aging effect through stimulating skin's own production of hyaluronic acid~0.25–0.45%
TOCOPHEROLRole: Key activePure 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~0.25–0.45%
Irritancy
20 flagged ingredients — patch-test recommended
High risk
We flagged 20 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.3–0.55%est.
Panax ginseng root extractA plant extract that might have some anti-inflammatory properties, but solid evidence is lacking. It can be irritatingHigh~0.25–0.45%est.
Equisetum arvense extractA plant extract that might have anti-oxidant properties. Can be irritatingHigh~0.2–0.35%est.
LinaloolA fragrance. Can be irritatingHigh~0.1–0.15%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinLow~1.7–2%est.
Peg-8Used to create a nice product consistencyLow~0.95–1.15%est.
Macadamia ternifolia seed oilPlant oil from nuts that helps soften the upper layer of the skin. Contains a high concentration of oleic acid that can weaken skin's barrier function and increase water-loss while enhancing penetration of other ingredientsLow~0.7–1.05%est.
Prunus armeniaca kernel oilAn emollient that helps soften the skinLow~0.6–0.9%est.
Acrylates copolymerUsed to stabilize product formulation, help create an even product layer over skin (for example, in sunscreen) and create a thicker product consistencyLow~0.5–0.7%est.
Camellia oleifera seed oilAn emollient that does not leave a greasy finishLow~0.45–0.65%est.
ChlorphenesinA preservativeLow~0.16–0.32%est.
Disodium edtaStabilizes the product formulationLow~0.25–0.5%est.
Sodium cocoyl glutamateHelps oil and water mix togetherLow~0.3–0.6%est.
O-cymen-5-olA preservativeLow~0.05–0.1%est.
Sodium dehydroacetateA preservativeLow~0.25–0.45%est.
PvpHelps evenly disperse other ingredients in a formulation and create an even layer on the surface of the skinLow~0.25–0.5%est.
Potassium sorbateA preservativeLow~0.25–0.45%est.
Glycine soja seed extractAn emollient that helps soften the skin. Might be somewhat helpful in evening the skin tone.Low~0.25–0.45%est.
Centella asiatica flower/leaf/stem extractA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.Low~0.2–0.35%est.
Sorbic acidA preservativeLow~0.1–0.2%est.
Comedogenic
4 ingredients can clog pores in acne-prone skin
High risk
These ingredients have a comedogenic rating ≥ 2. In leave-on products at higher concentrations they can clog pores for acne-prone skin types.
IngredientFunctionRatingEst. amount
Ethylhexyl palmitateAn emollient that helps soften the skin and create a nice product textureHigh~1.2–1.5%est.
Crithmum maritimum extractAn algae extract that might have anti-oxidant propertiesHigh~0.15–0.3%est.
Glyceryl stearate seUsed to stabilize the product formulations and works as an emollientMed~3.7–4.6%est.
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product textureMed~1.5–1.8%est.
~ marks concentrations estimated from label position and typical use levels

Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Glycerin~4.7–5.7%
Key active
Glyceryl stearate se~3.7–4.6%
Key activeComedo · medium
Methylsilanol mannuronate~3.1–3.7%
Formula
Dimethicone~2.4–2.9%
Key active
Propanediol~1.9–2.3%
Formula
Caprylic/capric triglyceride~1.7–2%
Key activeLow-irritation
Cetearyl alcohol~1.5–1.8%
Key activeComedo · medium
Ethylhexyl palmitate~1.2–1.5%
Key activeComedo · high
Peg-8~0.95–1.15%
Low-irritation
Macadamia ternifolia seed oil~0.7–1.05%
Key activeLow-irritation
Prunus armeniaca kernel oil~0.6–0.9%
Under-dosedLow-irritation
Phenoxyethanol~0.5–0.75%
Formula
Acrylates copolymer~0.5–0.7%
Low-irritation
Carbomer~0.45–0.65%
Formula
Argania spinosa kernel extract~0.4–0.6%
Formula
Camellia oleifera seed oil~0.45–0.65%
Under-dosedLow-irritation
Parfum~0.3–0.55%
Irritant · high
Xanthan gum~0.3–0.6%
Formula
Chlorphenesin~0.16–0.32%
Low-irritation
Disodium edta~0.25–0.5%
Low-irritation
Tromethamine~0.25–0.5%
Formula
Sodium cocoyl glutamate~0.3–0.6%
Low-irritation
O-cymen-5-ol~0.05–0.1%
Low-irritation
Ziziphus jujuba seed extract~0.2–0.4%
Formula
Sodium dehydroacetate~0.25–0.45%
Low-irritation
Tocopherol~0.25–0.45%
Key active
Phytoecdysteroids~0.25–0.45%
Formula
Pvp~0.25–0.5%
Low-irritation
Unknown~0%
Formula
Glycol~0.25–0.45%
Formula
Unknown~0%
Formula
Tetradecyl aminobutyroylvalylaminobutyric urea trifluoroacetate~0.25–0.45%
Key active
Hydrolyzed sesame protein pg-propyl methylsilanediol~0.25–0.4%
Formula
Potassium sorbate~0.25–0.45%
Low-irritation
Sodium benzoate~0.2–0.4%
Formula
Coffea arabica leaf/seed extract~0.2–0.4%
Formula
Glycine soja seed extract~0.25–0.45%
Key activeLow-irritation
Panax ginseng root extract~0.25–0.45%
Irritant · high
Centella asiatica flower/leaf/stem extract~0.2–0.35%
Key activeLow-irritation
Crithmum maritimum extract~0.15–0.3%
Key activeComedo · high
Sorbic acid~0.1–0.2%
Low-irritation
Helianthus annuus seed oil~0.2–0.35%
Key active
Equisetum arvense extract~0.2–0.35%
Irritant · high
Linalool~0.1–0.15%
Irritant · high
Magnesium chloride~0.1–0.15%
Formula

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