What's In My Jar
Mustela Stretch Marks Serum
Mustela

Mustela Stretch Marks Serum

Efficacy75/100IrritancyLow
See all ingredients

Works for

Moisturizing
Glycerin, Persea gratissima oil + 4 more
Works
What the product description says
“Mustela’s Stretch Marks Serum is a concentrated hydrating serum designed for use during pregnancy and postpartum.”
Source: Mustela USA

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, hydrolyzed 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: passiflora edulis seed oil, persea gratissima oil.

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~4.1–6.2%
Persea gratissima oilKey active· EmollientEffect: HighAn emollient that helps soften the skin and could be helpful in repairing its barrier function~3.4–5.2%
Passiflora edulis seed oilKey active· EmollientEffect: HighA good emollient helping to soften the skin. Might have some anti-oxidant properties. Adds a fragrance to the product~1.4–2.2%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.15–0.5%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.5–1.15%
TocopherolEffect: Low, below effective dosePure 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~0.6–1.35%

Can it cause trouble?

Irritancy
6 flagged ingredients
Low risk
We flag 6 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Passiflora edulis seed oilA good emollient helping to soften the skin. Might have some anti-oxidant properties. Adds a fragrance to the productHigh~1.4–2.2%est.
Persea gratissima oilAn emollient that helps soften the skin and could be helpful in repairing its barrier functionMedium~3.4–5.2%est.
1,2-hexanediolA preservativeMedium~0.1–0.35%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.5–1.15%est.
Trisodium ethylenediamine disuccinateUsed to improve stability of the formulationMedium~0.05–0.1%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.01–0.05%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~4.1–6.2%
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
Persea gratissima oil~3.4–5.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient that helps soften the skin and could be helpful in repairing its barrier function

More about Persea gratissima oil
Polyacrylate crosspolymer-6~2.4–3.7%
Formula
Irritation risk
Low
More about Polyacrylate crosspolymer-6
1,2-hexanediol~0.1–0.35%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Passiflora edulis seed oil~1.4–2.2%
Key activeIrritant · high
Irritation risk
High
Works for
Moisturizing

A good emollient helping to soften the skin. Might have some anti-oxidant properties. Adds a fragrance to the product

More about Passiflora edulis seed oil
Tocopherol~0.6–1.35%
Formula
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-agingAnti-inflammatory

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

More about Tocopherol
Caprylyl glycol~0.5–1.15%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Hydrolyzed hyaluronic acid~0.15–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Trisodium ethylenediamine disuccinate~0.05–0.1%
Irritant · medium
Irritation risk
Medium

Used to improve stability of the formulation

More about Trisodium ethylenediamine disuccinate
Citric acid~0.01–0.05%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Ingredient list view

Water, Glycerin, Persea gratissima oil, Polyacrylate crosspolymer-6, 1,2-hexanediol, Passiflora edulis seed oil, Tocopherol, Caprylyl glycol, Hydrolyzed hyaluronic acid, Trisodium ethylenediamine disuccinate, Citric acid

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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
MustelaStretch Marks SerumYOUR PRODUCTNaturopathicaPassion Fruit & Bakuchiol Ageless Eye SerumDr. Barbara SturmThe Good C Vitamin C SerumFormula 10.0.6Mega Serum Vitamin E Restoring Face Serum
Match—28%27%26%
Price—$106.00$139.76—
Shared key ingredients—4 of 53 of 53 of 5
Key difference—Tetrahexyldecyl AscorbatePanthenolNiacinamide
Irritancy Low Low Low Low
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 6 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    The influence of alkane chain length on the skin irritation potential of 1,2-alkanediolsncbi.nlm.nih.gov
  3. 3
    Vitamin E in dermatologyncbi.nlm.nih.gov
  4. 4
    Vitamin E and Skin Healthlpi.oregonstate.edu
  5. 5
    Efficacy of a New Topical Nano-hyaluronic Acid in Humansncbi.nlm.nih.gov
  6. 6
    Physiochemical properties and application of hyaluronic acid: a systematic reviewonlinelibrary.wiley.com
Mustela Stretch Marks Serum
MustelaStretch Marks Serum
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