
Mustela

Body Oils
No higher-risk flags in the assessed ingredients. This is a screening result, not a guarantee of pregnancy safety.
4 of 4 ingredients rated
MamaSkin rates the recorded formula for Mustela Stretch Marks Oil as No known risks (99/100). This screening result is not a guarantee of safety for every pregnancy.
No higher-risk ingredient flags are shown in the assessed entries. Ingredients without a matched rating are marked Not assessed, not No known risks.
4 of 4 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
How we assess productsThe recorded formula, with evidence behind each rating. Unmatched ingredients are marked Not assessed in grey.
Helianthus annuus (sunflower) seed oil is a common emollient rich in fatty acids and is generally well tolerated, with no known pregnancy or breastfeeding concerns in topical cosmetic use.
Sources: CIR; EU/UK Cosmetics Regulation
Avocado-derived emollient oil used for skin conditioning and barrier feel. Normal topical cosmetic use has no known pregnancy- or breastfeeding-specific concern identified in reviewed cosmetic references.
Sources: CIR: Safety Assessment of Plant-Derived Fatty Acid Oils as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
A plant-derived fatty oil or butter used mainly as an emollient, conditioning ingredient or texture agent. Cosmetic safety reviewers concluded that the assessed plant-derived fatty acid oils are safe in current practices of use and concentration. This conclusion applies to cosmetic-grade fixed oils rather than similarly named volatile essential oils. Seed or food allergy may still matter for a susceptible person.
Sources: CIR: Safety Assessment of Plant-Derived Fatty Acid Oils as Used in Cosmetics https://cir-reports.cir-safety.org/view-attachment/?id=ad62ac6b-8e74-ec11-8943-0022482f06a6
Vitamin E antioxidant used to protect oils and support the skin barrier. Not associated with pregnancy-specific concerns at cosmetic exposure.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Helianthus Annuus Seed Oil, Persea Gratissima Oil, Passiflora Edulis Seed Oil, Tocopherol
Ingredient ratings refreshed 1 October 2026. Formulas vary by market and can change. Always compare with your packaging.
No higher-risk ingredient flags are shown in the assessed entries. Ingredients without a matched rating are marked Not assessed, not No known risks. The product score is a stored assessment, not a clinical safety guarantee.
4 of 4 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
Only if the ingredient list on your packaging matches the recorded formula shown here. Formulas can differ by market and change over time. Compare the full list, not just the product name; report a mismatch if it differs.
No. This page presents a pregnancy-focused product assessment. Do not infer a breastfeeding conclusion from its score or label; breastfeeding requires a separate assessment of the formula and how it is used.