Evidence-led decision guide · Updated August 8, 2026
“Pregnancy safe” is often used like a simple product category, but lash serums contain different active ingredients and most cosmetic formulas have not been specifically studied in pregnant people. The safest answer is ingredient-specific and personal—not a blanket yes.
Can you use lash serum while pregnant?
Do not assume any lash serum is appropriate during pregnancy solely because it is cosmetic, natural, peptide-based, or prostaglandin-free. The current LATISSE label says there are no adequate and well-controlled studies in pregnant women and that use during pregnancy should occur only when potential benefit justifies potential fetal risk. For any cosmetic serum, show the complete ingredient list to your OB, midwife, pharmacist, or other qualified healthcare professional.
What is the best lash serum when pregnant?
There is no evidence-based universal “best pregnancy-safe lash serum.” The most defensible decision process is to identify the exact formula, separate drug ingredients and prostaglandin analogues from cosmetic peptides or botanicals, assess the evidence available for the finished product, and ask a prenatal healthcare professional whether using it for a cosmetic goal makes sense for you.
If you cannot obtain a complete ingredient list or clear manufacturer information, that uncertainty itself is useful information. Pausing an elective cosmetic serum during pregnancy is also a valid choice.
What the current LATISSE label says about pregnancy
LATISSE is bimatoprost ophthalmic solution 0.03%, a prescription prostaglandin analogue approved to treat eyelash hypotrichosis. The current prescribing information contains a narrative pregnancy risk summary—not the old A/B/C/D/X letter system.
- There are no adequate and well-controlled studies of LATISSE administration in pregnant women.
- The label reports no increased risk of major birth defects or miscarriage based on bimatoprost postmarketing experience.
- Animal studies reported adverse reproductive findings at exposures substantially above human topical ophthalmic exposure, as detailed in the label.
- The label states that LATISSE should be administered during pregnancy only if the potential benefit justifies the potential risk to the fetus.
This is more precise than saying “Category C.” FDA removed the pregnancy letter categories because they were viewed as overly simple and potentially confusing. Current consumer content should quote or accurately summarize the narrative label instead.
Lash-serum ingredients to recognize
| Ingredient or class | Where it appears | What to ask |
|---|---|---|
| Bimatoprost | Active drug in prescription LATISSE; a structural prostaglandin analogue. | Ask the prescriber to review the current pregnancy and lactation label for your situation. |
|
Isopropyl cloprostenate Also called cloprostenol isopropyl ester or IPCP |
Found in some cosmetic lash serums; belongs to the prostaglandin-analogue class. | Show the complete INCI list to your clinician and ask whether an elective eye-area cosmetic containing this class should be avoided. |
|
Ethyl tafluprostamide / DDDE Dechloro dihydroxy difluoro ethylcloprostenolamide |
Cosmetic prostaglandin/prostamide analogue under a long INCI name. | Do not rely only on front-label terms such as “peptide complex.” Review the full INCI. |
|
MDN Methylamido-dihydro-noralfaprostal |
Another cosmetic prostaglandin/prostamide analogue. | Ask for current ingredient confirmation when a brand's formula history is unclear. |
|
Peptides For example, myristoyl pentapeptide-17 or biotinoyl tripeptide-1 |
Common in prostaglandin-free cosmetic serums. | Ask whether finished-product pregnancy data exist. Ingredient-class absence does not establish safety. |
| Botanicals and essential oils | Common in “natural” and conditioning formulas. | Natural origin does not eliminate allergy, irritation, or pregnancy-evidence questions. |
Does prostaglandin-free mean pregnancy safe?
No. “Prostaglandin-free” means the formula does not contain ingredients from the prostaglandin/prostamide analogue class, assuming the current full ingredient list supports the claim. It does not mean the entire finished product has been studied during pregnancy.
A prostaglandin-free designation can still be a useful screening fact because it distinguishes one ingredient class. It should be followed by a formula-specific review, not converted into a blanket medical claim. See Plume's prostaglandin-free lash-serum reference for the ingredient-name guide and evidence limitations.
What about peptide lash serums during pregnancy?
Peptides used in cosmetic lash serums are not interchangeable with bimatoprost or cosmetic prostaglandin analogues. That difference does not prove that every peptide formula is appropriate during pregnancy. Most relevant evidence is ingredient-level, supplier-generated, or focused on cosmetic performance rather than pregnancy outcomes. The preservative system, botanicals, solvents, and the complete finished formula also matter.
Ask the brand for the current INCI list and any product-specific safety assessment. Then let your prenatal healthcare professional decide how that information applies to you.
Questions to ask your OB, midwife, or pharmacist
- Does this ingredient list contain a prostaglandin or prostamide analogue?
- Is the product a prescription drug, an over-the-counter drug, or a cosmetic?
- Are there finished-product pregnancy data, or only general ingredient information?
- Does my eye, skin, medication, allergy, or pregnancy history change the decision?
- Would you recommend pausing this elective cosmetic until after pregnancy?
- If I used it before realizing I was pregnant, what information do you need from me?
What if you already used lash serum while pregnant?
Do not panic or draw conclusions from a product category alone. Keep the package or photograph the ingredient list, note approximately when and how often you used it, and contact your prenatal healthcare professional. They can interpret the actual exposure and advise whether any follow-up is appropriate.
What about lash serum while breastfeeding?
The current LATISSE label says it is unknown whether topical ocular treatment could produce detectable bimatoprost in human milk and advises weighing breastfeeding benefits, the mother's clinical need, and potential effects on the child. Cosmetic formulas again require ingredient-specific review. Do not assume pregnancy and breastfeeding guidance are identical; ask a qualified professional about the exact product.
Can Plume Elite be called pregnancy safe?
Plume should not make that categorical claim. Elite is a prostaglandin-free cosmetic serum formulated without bimatoprost, isopropyl cloprostenate, DDDE, or MDN. That is verified ingredient-class information, not a pregnancy study.
People who are pregnant, trying to conceive, or breastfeeding should review the complete Plume Elite ingredient list with their healthcare professional before use.
Frequently asked questions
Is lash serum safe during pregnancy?
No lash serum should be declared universally safe in pregnancy without product-specific substantiation. Review the exact formula with a prenatal healthcare professional, especially when it contains a prostaglandin or prostamide analogue.
Is a prostaglandin-free lash serum safe while pregnant?
Prostaglandin-free identifies an absent ingredient class; it does not establish pregnancy safety for the complete formula. Peptides, botanicals, preservatives, and other ingredients still require product-specific review.
Can you use LATISSE while pregnant?
The current LATISSE label says there are no adequate and well-controlled studies in pregnant women and that use during pregnancy should occur only when the potential benefit justifies the potential fetal risk. This is a decision for the prescriber and patient.
What is the safest lash serum during pregnancy?
There is no universal evidence-based winner. The safest decision may be to pause elective serum use or to choose only after a healthcare professional reviews the complete formula and your circumstances.
Can I use castor oil on my eyelashes while pregnant?
Castor oil is not a proven lash-growth treatment, can irritate the eye area, and product purity or additional ingredients vary. Ask your prenatal healthcare professional about the exact product rather than assuming a natural oil is automatically appropriate.
Primary sources
- National Library of Medicine. LATISSE (bimatoprost ophthalmic solution) 0.03% prescribing information; revised July 2024. DailyMed label.
- U.S. Food and Drug Administration. Questions and Answers on the Pregnancy and Lactation Labeling Rule. FDA PLLR Q&A.
This page provides consumer education and does not replace care from an obstetric, ophthalmic, pharmacy, or other qualified healthcare professional.