AperiaAperia Guides
Your skin, your cycle, your pattern
Clear, evidence-based guides on how your cycle, sleep, stress, food and skincare can show up on your skin — and how to find what's true for you.
Which phase is your skin in today?Enter your last period date. Try the free cycle skin calculator →
Cycle & skinWhy your skin looks better on your periodIf your skin glows around your period, here is what your hormones are doing — and when the glow really peaks.Read the guide →Cycle & skinBreakouts during ovulationYour period is two weeks away, yet new spots appear. Why mid-cycle breakouts happen and why they often show up late.Read the guide →Cycle & skinBreaking out after your periodPeriod over, new spots? Why breakouts can lag behind your cycle — and how to tell a late arrival from a new trigger.Read the guide →Products & ingredientsIs my skincare breaking me out?Product reaction, purging or cycle timing? A calm, one-change-at-a-time way to find the culprit.Read the guide →Skin log methodHow to find out what's causing your breakoutsA simple 4-week skin log — what to record each day and how to read the patterns.Read the guide →