Your skin isn’t just influenced by the products you put on it — it also responds to internal hormonal changes, especially estrogen. While most people think of estrogen in the context of reproduction or menopause symptoms, it actually plays a direct role in how your skin ages.
Estrogen receptors are found throughout the skin, and declining estrogen levels after menopause contribute to collagen loss, reduced hydration, and decreased elasticity. This is one reason many women notice their skin looks thinner, drier, and more fragile as they age.


Research now points to topical estrogen — especially estriol (commonly referred to as "E3") — as a promising option for facial skin rejuvenation. Let’s take a closer look at how topical estriol works, the science behind it, and how it may help support more youthful, resilient skin.


Why Estrogen Matters for Skin




            Estrogen affects nearly every layer of the skin. 


            • Stimulates collagen and elastin production
            • Improves skin thickness and elasticity
            • Increases skin hydration by enhancing hyaluronic acid
            • Supports wound healing and barrier function

            As estrogen declines, so do these protective effects. This contributes to fine lines, sagging, dryness, and increased sensitivity.


            “Estrogen receptors in the skin regulate important functions including fibroblast activity and barrier integrity.” (Lephart, 2018)



            What Is Estriol (E3)?


            Estriol is one of three primary forms of estrogen (along with estradiol-E2, and estrone- E1). It’s considered the "weakest" estrogen, but that’s part of why it's well-suited for facial use:

            • Low potency = lower risk of systemic effects
            • High local activity = visible skin benefits
            • Good safety profile when used topically

            Topical estriol doesn’t significantly enter the bloodstream in most cases, which makes it a safer option for those who can’t tolerate or who can't or choose not to use systemic hormone therapy.



            “Topical estriol was shown to significantly increase skin elasticity and firmness, with minimal systemic absorption.” (Rzepecki et al., 2019)



            How Does Topical Estriol Improve Facial Skin?


            When applied directly to the skin, estriol binds to estrogen receptors in dermal cells, promoting:

            • Increased collagen production
            • Thicker epidermis and dermis
            • Improved hydration and elasticity
            • Reduction in fine lines and wrinkle depth

            This is particularly helpful for postmenopausal women experiencing skin changes due to declining estrogen. Estriol creams may also support wound healing and reduce inflammatory markers in the skin.



            “In clinical studies, estriol improved skin texture and thickness without stimulating the endometrium or raising serum estrogen levels.” (Lephart & Naftolin, 2022)



            Why Compounded Estriol Cream?


            Most estriol creams used for facial rejuvenation are compounded. Here’s why:

            • Customized dosing: Your practitioner can tailor the strength for your skin type and hormone profile.
            • Formulated for facial application: Compounded creams often include skin-friendly bases that enhance absorption and reduce irritation.
            • No unnecessary additives: Ideal for sensitive skin or those avoiding commercial preservatives and fragrances.
            • Pharmaceutical Estriol cream is not available in North America (it is available in Australia and New Zealand and is known as "Ovestin")

            If you're interested in topical estriol for your skin, it's best prescribed by your primary health care provider experienced in hormone therapy and compounding pharmacy.



            How to Use Estriol Cream for Skin





                    1. Apply a small, pea-sized amount to clean skin, focusing on the cheeks, around the eyes, and jawline.
                    2. Use twice weekly typically, but use as directed by your health care provider.
                    3. Combine with antioxidant serums, gentle moisturizers, and mineral-based sunscreen for enhanced results.
                    4. Monitor for any signs of irritation or sensitivity, and always check in with your healthcare provider if you have a history of hormone-sensitive conditions.

                    Is Topical Estriol (E3) safe?


                    So far, studies show that topical estriol is well-tolerated and does not significantly affect systemic estrogen levels when applied to the face in low doses. However, it’s not recommended without medical supervision — especially if you have a history of breast cancer, endometrial hyperplasia, or other hormone-sensitive conditions.


                    Always consult your primary care provider or family doctor before starting any hormone-based treatment, including topical creams.


                    Final Thoughts: A Promising Option for Aging Skin


                    Topical estriol offers a targeted, science-backed way to support skin health after menopause — without the risks of full-body hormone therapy. By nourishing the skin from the outside in, it helps improve texture, firmness, and hydration.


                    This may be an especially useful option for women who are not candidates for systemic hormone replacement therapy (HRT) or who are looking to complement their existing skin routine with something more therapeutic.


                    If you’re curious about whether topical estriol is right for you, or want to explore other hormone and skin-supportive treatments, you can book a free discovery call with me here.


                    To your healthiest skin,


                    Dr. Amy Tung, ND
                    Naturopathic Doctor
                    Menopause Society Certified Practitioner (MSCP)



                    References:


                    Lephart, E. (2018). Skin aging and oxidative stress: Equol’s anti-aging effects via biochemical and molecular mechanisms. Ageing Research Reviews, 47, 140–151.


                    Lephart, E., & Naftolin, F. (2022). Factors Influencing Skin Aging and the Important Role of Estrogens and Selective Estrogen Receptor Modulators (SERMs). Clinical, Cosmetic and Investigational Dermatology, 15, 1695–1709.


                    Lephart, E., & Naftolin, F. (2020). Menopause and the Skin: Old Favorites and New Innovations in Cosmeceuticals for Estrogen-Deficient Skin. Dermatology and Therapy, 11, 53 - 69. https://doi.org/10.1007/s13555-020-00468-7.


                    Rzepecki, A., Murase, J., Juran, R., Fabi, S., & McLellan, B. (2019). Estrogen-deficient skin: The role of topical therapy. International Journal of Women's Dermatology, 5, 85 - 90. https://doi.org/10.1016/j.ijwd.2019.01.001.


                    Shu, Y., & Maibach, H. (2011). Estrogen and Skin. American Journal of Clinical Dermatology, 12, 297-311. https://doi.org/10.2165/11589180-000000000-00000.



                    Disclaimer:



                    The information in this blog is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your doctor or other qualified health care professional with any questions regarding a medical condition or treatment. Never disregard professional medical advice or delay seeking treatment because of something you have read in this blog.
                    Individual results may vary, and the strategies discussed here are not guaranteed to work for everyone. This content does not create a patient-client relationship and should not be used as a replacement for personalized medical care.