# Does Your Menstrual Cycle Affect Your Skin? What Research Says Source: https://myskinmemory.app/blog/does-your-menstrual-cycle-affect-your-skin Author: Amna Akhtar Published: 2026-10-20 Updated: 2026-10-17 Description: Does your period affect your skin? What studies say about premenstrual breakouts and skin changes across the menstrual cycle, and how to note cycle day in a skin log. --- **In short:** For many people, yes, skin can look and feel different at different points in the menstrual cycle. In a 2001 survey of 400 women in the *Journal of the American Academy of Dermatology*, 44 percent reported that their acne got worse before their period. A 2004 study that counted spots across two cycles found inflammatory lesions rose by about 25 percent in the premenstrual phase. A small 1992 study also measured slightly weaker skin barrier function just before a period than just before ovulation. Research describes patterns across groups, though. It can't tell you what is happening on your own skin on a given day. Noting your cycle day next to your skincare notes is what lets you see your own pattern, if there is one. ## What research says about the cycle and acne The best-documented link is a premenstrual flare in acne. - **A survey of 400 women.** [Stoll and colleagues, 2001](https://pubmed.ncbi.nlm.nih.gov/11712049/), asked women aged 12 to 52 whether their acne got worse before, during or after their period. **177 of 400, or 44 percent, reported premenstrual flares.** The rate did not differ by acne severity, ethnicity or oral contraceptive use, and was higher in women over 33. - **Counting spots, not just asking.** Self-reports can be shaped by expectation, so [Lucky, 2004](https://jamanetwork.com/journals/jamadermatology/fullarticle/480456) counted lesions in adult women with regular cycles who were not using acne treatment, comparing the late follicular phase with the late luteal, or premenstrual, phase over two cycles. **Inflammatory lesions rose from an average of 9.5 to 11.9, a 25 percent increase,** and rose in 63 percent of the comparisons. The study was small, with 25 women evaluated, but it was the first to measure the flare rather than ask about it. Researchers generally connect this to the hormone changes of the cycle, and to the effect of androgens on the skin's oil glands. That explanation is plausible, but studies measuring sebum, the skin's oil, across the cycle have produced mixed results, so the mechanism is not settled. ## The skin barrier across the cycle Acne is not the only thing that has been measured. A small study by [Harvell and colleagues, 1992](https://pubmed.ncbi.nlm.nih.gov/1493683/), in *Contact Dermatitis*, measured transepidermal water loss, the amount of water escaping through the skin and a common marker of barrier function, at three points in the cycle. **Water loss was higher on the day of lowest oestrogen and progesterone, just before a period, than on the day of highest oestrogen, just before ovulation.** The authors suggested the barrier may be slightly less complete in the days before a period. That is one small study, and it measured the back and forearm, not the face. It is a reason to take "my skin feels different that week" seriously, not proof of what your own skin is doing. ![A 28-day cycle shown as a ring, with the late luteal days before a period marked, and two research notes: 44 percent of 400 women reported premenstrual acne flares, and inflammatory lesions rose by about 25 percent premenstrually in a small counting study](/blog/menstrual-cycle-skin-research.webp) ## Why cycle day matters for your skincare record Here is the practical problem. If skin tends to change in the days before a period, then a new product started in that week can look like it caused something it didn't. Equally, a product that genuinely doesn't suit you can be written off as "just hormones". Neither guess is reliable without dates. A record that shows both the product changes and the cycle day lets you, or a clinician, compare like with like: this cycle against the last three, not this week against last week. That is the same reason [skin reactions that lag](/blog/why-skin-reactions-can-lag-what-research-says-about-timing) are hard to read from memory. ## What to note, if you choose to Tracking your cycle is personal, and nobody needs to do it to look after their skin. If you do want to see whether your skin follows a pattern, a few short notes are enough: 1. **Day one of each period.** A single dated note is all most people need. Cycle day for any other date can be worked out from that. 2. **What you notice, where, and in your own words.** "Three spots along the jaw" is more useful later than "bad skin". 3. **Product changes, with dates,** kept as separate entries from the cycle notes. 4. **Changes in hormonal contraception or medication,** with the date. These are changes too, and worth telling a clinician about. 5. **Other context:** stress, sleep, travel, a change of season. [Winter](/blog/why-your-skin-changes-in-winter) brings its own set of changes. After three or four cycles, you will have something to look at. A [skincare journal](/blog/how-to-keep-a-skincare-journal) habit makes sure the notes exist, and reading them over months is what [understanding skin over time](/blog/understood-over-time) means in practice. If you are starting a routine that changes from night to night, like [skin cycling](/blog/what-is-skin-cycling), note which night it was too, so that two different rhythms don't blur into one. ## When to talk to someone If breakouts are painful, leave marks, or are affecting how you feel, a pharmacist, GP or dermatologist can help. Irregular or very heavy periods alongside skin changes are also worth raising with a doctor. Bringing a few months of dated notes makes that conversation easier. [How to describe a skin reaction to a doctor or pharmacist](/blog/how-to-describe-a-skin-reaction-to-a-doctor-or-pharmacist) covers what to bring. ## Where Skin Memory fits Skin Memory is a skincare record, not a period tracker, and it doesn't read patterns into your skin. What it keeps is the dated record that makes your own reading possible. The change log records product starts, swaps and pauses. The daily journal holds notes in your own words, including "period started" if you choose to write it, and **Note a response** records an [observation](/features/observations) like breakouts or redness without the app deciding what it means. Your [skin history](/features/skin-history) lets you scroll back across several cycles. If something changes, the [reconstruction view](/blog/the-reconstruction-view) shows what was logged in the 30 days before, in order, without naming a cause. You can [download Skin Memory for Android](/download). If something on your skin concerns you, talk to a doctor or pharmacist, and bring the dated record with you. ## FAQ **Does your period affect your skin?** For many people, skin changes across the menstrual cycle. In a 2001 survey of 400 women, 44 percent reported acne getting worse before their period, and a 2004 study counting lesions found inflammatory spots rose by about 25 percent premenstrually. Individual experience varies. **Why do I break out before my period?** Researchers generally connect premenstrual flares to hormone changes in the cycle and their effect on the skin's oil glands, though studies measuring oil across the cycle have mixed results. A pharmacist or doctor can help if breakouts bother you. **Is premenstrual acne common?** It is commonly reported. In one survey, 177 of 400 women said their acne flared before their period, and the rate was higher in women over 33. **Does the skin barrier change during the menstrual cycle?** A small 1992 study found slightly higher water loss through the skin just before a period than just before ovulation, suggesting a small dip in barrier function. It was one small study on the back and forearm. **Should I track my cycle in my skincare journal?** Only if you want to. If you do, noting day one of each period is usually enough to compare your skin notes across cycles. **Can I tell whether a breakout is hormonal or from a new product?** Not from one breakout. Dated notes over several cycles, with product changes logged separately, help you and a clinician compare. They don't determine a cause on their own. **Is this medical advice?** No. It is general information. If something concerns you, talk to a doctor or pharmacist.