Cookies are small text files placed on your device by websites you visit. Local storage (localStorage) is a modern web standard that allows websites to store key-value pairs directly in your browser. Both technologies allow us to remember specific preferences and authentication details across visits.

We use these technologies strictly to enable core platform functions, optimize formulation modeling, and persist your settings. We do not use them to track your activity on other sites or build advertising profiles.

PharmNode utilizes cookies and local storage for the following essential purposes:

Authentication: We use secure cookies to maintain your active login session when registering or logging in via Google/GitHub OAuth.

Preferences: We save your active language setting (English vs Russian) using the 'pharmnode-locale' parameter, ensuring you do not have to switch languages on every visit.

Theme Settings: We store your theme selection (dark vs light mode) in localStorage to preserve the premium glassmorphic visual presentation.

Consent Status: We store your choice to accept or decline cookies in localStorage under 'pharmnode_cookie_consent' so that the cookie banner does not reappear repeatedly.

For payment processing, subscription management, and checkout operations, we integrate Paddle Billing v2. Paddle acts as the Merchant of Record for PharmNode.

When you open the billing or upgrade flow, the Paddle SDK may set technical cookies to authenticate your checkout session, prevent credit card fraud, and verify transaction integrity. These cookies are processed under Paddle's privacy policies in full compliance with PCI-DSS standards.

You have the right to decide whether to accept or decline non-essential cookies. You can update your choice at any time using our consent banner, or manually clear your browser's cookies and local storage in your browser settings.

Please note that disabling necessary functional cookies (such as session cookies or preference settings) may degrade your experience and prevent you from utilizing formulation canvas tools, saving ingredients, or managing subscriptions.