SkinTheory is a skincare brand focused on helping people understand and manage acne through personalized skin and lifestyle tracking. Its approach recognizes that everyone’s skin is different and aims to help users identify factors that may contribute to breakouts, rather than relying on a one-size-fits-all routine.

The SkinTheory Method is presented in three steps: make an initial journal entry, track the factors most relevant to acne, and use the resulting insights to guide changes to skincare and daily habits. The app emphasizes medically important acne factors to keep tracking simple and focused. Users can experiment with routines and review their progress to discover what works for their skin.

SkinTheory’s goal is to help users achieve clearer, healthier skin and eventually no longer need the app. The brand also shares updates through its mailing list and social media, and provides email contact for inquiries. SkinTheory is based in Berlin, Germany.