Privacy

Short version: what you type into Dew Lilac stays on your device.

What stays in your browser

• Routine builder: the products and options you tick are saved in your browser's local storage so they are there next time. Start again deletes them.
• Patch test tracker: your tests and check-ins are saved in local storage. Export downloads them as a file you control; Clear all deletes them.
• Your theme choice (light, dark or auto) is saved in local storage.
• Ingredient lists you paste into the INCI reader are read on the page and not saved or sent anywhere.
• Pairing checker: the actives you pick appear in the page address so you can share the link; they are not stored.

Calendar (.ics), text and CSV files are created in your browser and downloaded straight to your device. Local storage is not sent to any server, and clearing your browser's site data removes it.

Analytics

The site is hosted on Cloudflare, which adds Cloudflare Web Analytics to every page. It counts page views without cookies or cross-site tracking and never receives what you type, paste or pick in the tools. Cloudflare, like any web host, also processes technical request data such as IP addresses to deliver and protect the site.

No accounts, no cookies, no ads

There are no accounts, sign-ups, advertising or tracking cookies. Links to other websites, including the sources we cite and the services in the footer, take you to sites with their own privacy policies.