# Reserve Loan > Borrow ETH by using fpETH as collateral through non-liquidatable Reserve Loans. Canonical URL: https://docs.polaris.finance/testnet/reserve-loan Markdown URL: https://docs.polaris.finance/testnet/reserve-loan.md Section: Using the Testnet Documentation index: https://docs.polaris.finance/llms.txt Full documentation bundle: https://docs.polaris.finance/llms-full.txt --- Reserve Loans enable you to borrow ETH by using fpETH as collateral. From here you can open and manage non-liquidatable Reserve Loans, view your active positions, and repay or close existing loans. It is designed to provide a clear overview of your Reserve Loans and the actions available to manage them.