Sclareolide

Sclareolide and pregnancy

Caution Advised

• Hormone disruptor

Sclareolide is a fragrance compound derived from clary sage or produced synthetically. It has a musky, amber-like scent and is used in perfumes and scented cosmetic products. The compound is a diterpenoid lactone with some structural similarity to hormone-like molecules. Some in vitro studies have shown that sclareolide can exhibit weak estrogenic activity in laboratory settings, raising theoretical concerns about use during pregnancy when hormonal balance is critical for fetal development. However, these studies were conducted in isolated cell systems, and it's unclear whether topical cosmetic exposure results in sufficient absorption to cause hormonal effects. No human studies or case reports have documented adverse pregnancy outcomes from cosmetic use of sclareolide-containing products. The concern is primarily theoretical based on its chemical structure and laboratory findings. Neither ACOG nor FDA has issued specific guidance on sclareolide during pregnancy, reflecting the limited human data. Some pregnancy-safe skincare experts recommend avoiding products with sclareolide as a precautionary measure, particularly in the first trimester when fetal development is most sensitive to hormonal disruption. Women who prefer to minimize potential endocrine-disrupting exposures during pregnancy may choose fragrance-free products or those scented with ingredients that lack estrogenic activity. The risk is considered lower in the third trimester when major organ development is complete, though conservative guidance would still suggest avoidance if alternatives are available.

Sclareolide and breastfeeding

Safe to Use

Sclareolide is a fragrance ingredient with potential weak estrogenic activity observed in laboratory studies. When used in cosmetic products, the amount absorbed through skin is generally minimal, and it's unclear whether this would result in measurable levels in breast milk. While the theoretical concern about estrogenic activity exists, there is no evidence that cosmetic use of sclareolide affects breast milk composition or infant development. The compound is fat-soluble, which means if absorbed, it could theoretically concentrate in breast milk. However, the low concentrations used in fragrances and limited absorption through skin make significant transfer unlikely. Most dermatologists and lactation consultants do not specifically warn against sclareolide-containing products during breastfeeding, though they may recommend fragrance-free products for sensitive skin or if the baby shows signs of reaction. Women who prefer to minimize potential hormone-active compound exposure may choose to avoid products with this ingredient, though the risk appears lower than during pregnancy.

Sclareolide and postpartum

Safe to Use

Sclareolide is a fragrance ingredient that may have weak estrogenic activity based on laboratory studies. For postpartum women not breastfeeding, there are minimal specific concerns beyond the general consideration of hormone-active compounds. Women who are not breastfeeding and have no particular hormone-sensitive conditions can generally use products containing sclareolide without significant concern. Those with a history of hormone-sensitive conditions may prefer fragrance-free alternatives.

Sclareolide and trying to conceive

Caution Advised

• Hormone disruptor

Sclareolide has demonstrated weak estrogenic activity in laboratory studies, raising theoretical concerns about its use when trying to conceive. Hormonal balance is important for regular ovulation and successful conception, and exposure to compounds with estrogenic activity could theoretically interfere with this process. There is no direct evidence that cosmetic use of sclareolide affects fertility, but women trying to conceive often choose to minimize exposure to potential endocrine-disrupting compounds as a precautionary measure. Given the availability of fragrance alternatives without hormonal activity, many fertility specialists recommend avoiding sclareolide-containing products during the preconception period.

Sclareolide and PCOS

Caution Advised

• Interferes with hormones
• Affects estrogen

Sclareolide is a fragrance compound with documented weak estrogenic activity in laboratory studies. While the clinical significance of this activity when used in cosmetic products is unclear, it raises theoretical concerns for women with hormonal conditions like PCOS. PCOS involves hormonal imbalance, and some women with PCOS are particularly sensitive to compounds that may affect estrogen or androgen activity. The weak estrogenic activity of sclareolide could theoretically interfere with hormonal balance, though no studies have specifically examined its effects in women with PCOS. The concern is primarily theoretical based on its hormonal activity in vitro. Women with PCOS who prefer to minimize potential hormone-disrupting exposures may choose to avoid products containing sclareolide, particularly if they are actively managing PCOS symptoms or trying to conceive. Fragrance-free products or those scented with ingredients without hormonal activity would be safer alternatives.

Sclareolide and general use

Safe to Use

• Endocrine disruptor

Sclareolide is a fragrance ingredient derived from clary sage or produced synthetically. It provides a musky, amber-like scent to perfumes and cosmetic products. The compound is a diterpenoid lactone that has been studied for various biological activities. Research has shown that sclareolide can exhibit weak estrogenic activity in laboratory settings, meaning it can bind to estrogen receptors and potentially mimic some estrogen effects. However, these studies were conducted in vitro (in isolated cells), and it's unclear whether the low levels of topical exposure from cosmetics result in significant hormonal effects in humans. The compound is generally well-tolerated on skin with minimal irritation. Sclareolide is approved for use as a fragrance ingredient globally. While the estrogenic activity raises theoretical concerns, particularly for hormone-sensitive populations, more research is needed to determine clinical significance. Individuals concerned about potential endocrine disruption may choose fragrance-free products or those with alternative scent ingredients.

Everything else flagged for the same profiles

• Flagged in pregnancy
• Flagged in trying to conceive
• Flagged in PCOS

Related ingredients

Ingredients that raise the same concerns.

• PropylparabenAffects estrogen, Endocrine disruptor, Interferes with hormones
• Benzophenone-3Affects estrogen, Endocrine disruptor, Interferes with hormones
• Propyl GallateAffects estrogen, Endocrine disruptor, Interferes with hormones
• IsobutylparabenAffects estrogen, Endocrine disruptor, Interferes with hormones
• 4-Methylbenzylidene CamphorAffects estrogen, Endocrine disruptor, Interferes with hormones
• Angelica Polymorpha Sinensis Root ExtractAffects estrogen, Endocrine disruptor, Interferes with hormones

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 15 September 2026.