Ingredient
Aminopropyl Triethoxysilane
Aminopropyl Triethoxysilane is flagged for pregnancy and trying to conceive.
- APTES
- 3-Aminopropyltriethoxysilane
- Silane A-1100
Verdict by profile
Truva checks every ingredient against six profiles. Jump to any of them for the full assessment.
- Strongest verdict
- Caution Advised
- Its verdict for pregnancy, the profile this one is worst in
- Profiles flagged
- 2 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 3 of 5
- Higher means more likely to sting or redden
Aminopropyl Triethoxysilane and pregnancy
Caution Advised
Aminopropyl Triethoxysilane is a silane compound used in cosmetics as a film-former and surfactant. It helps products adhere to skin and improves texture and spreadability. The ingredient is more commonly used in industrial applications and is less prevalent in cosmetics. There is no specific pregnancy safety data for topical cosmetic use of this ingredient. As a silane compound with potential for irritation and limited cosmetic safety studies, a precautionary approach is warranted. While there's no evidence of teratogenic effects, the lack of reproductive toxicity studies specific to dermal application during pregnancy means its safety profile is uncertain. Given the limited safety data and the availability of better-studied alternatives, many dermatologists would recommend choosing products with more established safety profiles during pregnancy. This is particularly true during the first trimester when fetal organ development is most vulnerable, even though no specific concerns have been identified.
Aminopropyl Triethoxysilane and breastfeeding
Safe to Use
Aminopropyl Triethoxysilane functions as a surfactant and film-forming agent in cosmetic products. When used topically, it remains primarily on the skin's surface or in the upper layers of the stratum corneum. There is no data on transfer into breast milk, but given the ingredient's use as a topical film-former with limited penetration, systemic absorption would be minimal. The compound is not designed to be absorbed through skin and acts primarily as a surface modifier. While specific breastfeeding studies don't exist, the surface-acting mechanism and limited dermal penetration suggest low risk. However, the overall limited safety data for cosmetic use means other well-studied ingredients may be preferable during the breastfeeding period.
Aminopropyl Triethoxysilane and postpartum
Safe to Use
- Irritant
For non-breastfeeding postpartum women, the primary consideration is skin sensitivity. Postpartum hormonal changes can make skin more reactive, and silane compounds like APTES have known irritant potential. If using products containing this ingredient, monitor for irritation, especially if skin is still recovering from pregnancy-related changes. More established, gentler alternatives may be better suited for sensitive postpartum skin.
Aminopropyl Triethoxysilane and trying to conceive
Caution Advised
For women trying to conceive, the lack of reproductive toxicity data for cosmetic use is the primary concern. While there's no evidence of fertility effects, the limited safety information means a conservative approach is reasonable. Since pregnancy can occur at any time when trying to conceive, ingredients with uncertain pregnancy safety profiles are often avoided. Given the availability of well-studied alternatives that serve similar functions, many women choose to switch to better-characterized ingredients during the TTC period.
Aminopropyl Triethoxysilane and PCOS
Safe to Use
- Irritant
Aminopropyl Triethoxysilane does not have hormone-disrupting properties and does not interact with androgen pathways relevant to PCOS. The ingredient is a surface-acting agent without endocrine effects. The main consideration for PCOS-affected skin would be irritation potential. Since PCOS can cause acne and skin sensitivity, irritating ingredients should be used cautiously. However, this ingredient doesn't specifically aggravate hormonal acne or interfere with PCOS management. There are no PCOS-specific concerns with this ingredient, though individuals with sensitive or acne-prone PCOS skin may prefer gentler alternatives.
Aminopropyl Triethoxysilane and general use
Safe to Use
- Irritant
- Common allergen
Aminopropyl Triethoxysilane is generally used in small concentrations in cosmetic products where it functions to improve product performance and adherence. For the general population, it's considered relatively safe when used as intended in finished cosmetic products. The main concerns are irritation and potential sensitization, particularly in individuals with sensitive skin or existing allergies to silane compounds. Those with a history of contact dermatitis should patch-test products containing this ingredient. While not inherently dangerous, this ingredient is less common in cosmetics than other surfactants and film-formers with more extensive safety data. Users seeking the most established safety profiles may prefer products formulated with more traditional cosmetic ingredients.
Everything else flagged for the same profiles
Related ingredients
Ingredients suggested in place of Aminopropyl Triethoxysilane, each one with its own page here.
Ingredients that raise the same concerns.
Where this came from
Truva summarises published guidance from bodies including ACOG, the FDA, the EU SCCS and the Cosmetic Ingredient Review. It has no access to your medical history and it is not a substitute for your doctor, dermatologist or midwife. These assessments have not been reviewed by a clinician, and nothing here is a diagnosis or a prescription. If you are pregnant, breastfeeding or being treated for PCOS, take the ingredient list to the person looking after you.
Assessment last pulled from the ingredient database on .
One ingredient is the easy case.
A label has thirty of them. Truva reads the whole list at once and answers for the profile you set: pregnancy, breastfeeding, postpartum, trying to conceive, PCOS, or general use.
Download on theApp Store