Mederma Stretch Marks Therapy Cream

Mederma Stretch Marks Therapy Cream

Efficacy75/100IrritancyHigh

Works for

Moisturizing
Cetearyl alcohol, C12-15 alkyl benzoate + 9 more
Works
What the product description says
“*Mederma Stretch Marks Therapy is clinically shown to increase the moisture content of the skin, thereby helping to keep skin more elastic and less apt to tear and form stretch marks.”
Source: Walgreens

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: cyclomethicone, glycerin.

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: cyclomethicone, hydrolyzed collagen.

Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~3.3–5%
C12-15 alkyl benzoateKey active· EmollientEffect: MediumEnhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth~2.8–4.3%
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~1.8–2.7%
CyclomethiconeKey active· Humectant, EmollientEffect: HighA type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer~1.3–1.9%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.15–0.6%
Hydrolyzed collagenKey active· Humectant, EmollientEffect: HighA typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin~0.1–0.45%
Hydrolyzed soy proteinKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin. Might have some anti-aging, anti-oxidant, and skin lightening properties, but solid evidence is missing~0.05–0.25%
Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~2.1–3.2%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~1.5–2.2%
Arachidyl alcohol· EmollientEffect: LowUsed to soften the upper layer of the skin and create a thicker product consistency~1.1–1.6%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.5–1.2%
Anti-aging
Side benefit · Centella asiatica leaf extract
May help

This product contains centella asiatica leaf extract. There is some human evidence that this ingredient helps reduce and prevent fine lines and wrinkles and improve skin elasticity and firmness, though it is smaller or less consistent than the evidence for the best anti-aging ingredients.

Centella asiatica leaf extractKey activeEffect: MediumA 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. It can be irritating to sensitive skin. Might be helpful in preventing stretch marks. It could, however, itself be irritating.~0.1–0.35%

Can it cause trouble?

Irritancy
3 strong irritants: Allium cepa bulb extract, Alcohol + 1 more — patch-test recommended
High risk
We flagged 10 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Allium cepa bulb extract—High~5.9–8.8%est.
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~0.8–1.2%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.15–0.65%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~1.5–2.2%est.
EthoxydiglycolHelps to improve the product consistencyMedium~0.35–0.75%est.
Cetearyl glucosideHelps water and oil in the product mix well together and improves product textureMedium~0.35–0.8%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.35–0.75%est.
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymerA gelling agent that thickens the product consistency and leaves the skin with a velvety finishMedium~0.15–0.55%est.
Disodium edtaStabilizes the product formulationMedium~0.1–0.4%est.
Centella asiatica leaf 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. It can be irritating to sensitive skin. Might be helpful in preventing stretch marks. It could, however, itself be irritating.Medium~0.1–0.35%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~3.3–5%est.

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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
Allium cepa bulb extract~5.9–8.8%
Irritant · high
Cetearyl alcohol~3.3–5%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
C12-15 alkyl benzoate~2.8–4.3%
Key active
Irritation risk
Low
Works for
Moisturizing

Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth

More about C12-15 alkyl benzoate
Dicaprylyl carbonate~2.1–3.2%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate
Glycerin~1.8–2.7%
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
Pentylene glycol~1.5–2.2%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Cyclomethicone~1.3–1.9%
Key active
Irritation risk
Low
Works for
Moisturizing

A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer

More about Cyclomethicone
Arachidyl alcohol~1.1–1.6%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to soften the upper layer of the skin and create a thicker product consistency

More about Arachidyl alcohol
Alcohol~0.8–1.2%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Behenyl alcohol~0.5–1.2%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Arachidyl glucoside~0.4–0.95%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Arachidyl glucoside
Ethoxydiglycol~0.35–0.75%
Irritant · medium
Irritation risk
Medium

Helps to improve the product consistency

More about Ethoxydiglycol
Cetearyl glucoside~0.35–0.8%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil in the product mix well together and improves product texture

More about Cetearyl glucoside
Tocopheryl acetate~0.35–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Parfum~0.15–0.65%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Sodium hyaluronate~0.15–0.6%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer~0.15–0.55%
Irritant · medium
Irritation risk
Medium

A gelling agent that thickens the product consistency and leaves the skin with a velvety finish

More about Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer
Hydroxyethylcellulose~0.15–0.5%
Formula
Irritation risk
Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose
Disodium edta~0.1–0.4%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Centella asiatica leaf extract~0.1–0.35%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-inflammatoryReduces irritationReduces rednessAnti-agingAnti-blemish

A 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. It can be irritating to sensitive skin. Might be helpful in preventing stretch marks. It could, however, itself be irritating.

More about Centella asiatica leaf extract
Hydrolyzed collagen~0.1–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

A typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin

More about Hydrolyzed collagen
Hydrolyzed soy protein~0.05–0.25%
Key active
Irritation risk
Low
Works for
MoisturizingEvens skin toneAnti-oxidationAnti-inflammatory

Helps attract water to the upper layer of the skin. Might have some anti-aging, anti-oxidant, and skin lightening properties, but solid evidence is missing

More about Hydrolyzed soy protein
Sodium hydroxide~0.05–0.2%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Iron oxides~0.05–0.15%
Formula
Irritation risk
Low
Works for
Sun protection

An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear

More about Iron oxides
Ingredient list view

Water, Allium cepa bulb extract, Cetearyl alcohol, C12-15 alkyl benzoate, Dicaprylyl carbonate, Glycerin, Pentylene glycol, Cyclomethicone, Arachidyl alcohol, Alcohol, Behenyl alcohol, Arachidyl glucoside, Ethoxydiglycol, Cetearyl glucoside, Tocopheryl acetate, Parfum, Sodium hyaluronate, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Hydroxyethylcellulose, Disodium edta, Centella asiatica leaf extract, Hydrolyzed collagen, Hydrolyzed soy protein, Sodium hydroxide, Iron oxides

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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
MedermaStretch Marks Therapy CreamYOUR PRODUCTSENTÉDermal Repair Body CreamSkintegraCica-CeraJ-PalletKINKA Gold Moisture Cream N
Match—39%38%36%
Price—$110.00—$47.95
Shared key ingredients—2 of 53 of 53 of 5
Key difference—Acetyl GlucosamineMadecassosideAlgae Extract
Irritancy High Low Medium Low
Drying alcohol Contains drying alcohol ———
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Mederma Stretch Marks Therapy Cream
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Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.