Users do not need to send a second transaction on the destination chain to attain assets or pay for gas fees. Instead, the transaction on the destination chain is generated automatically by the LayerZero & InterSwap Router smart contracts. The user only pays one gas fee on source chain.
Cross-Chain Liquidity Pools
Liquidity Pools are divided into separate Lock Contracts on each chain. The state of the two pools is controlled by a MasterRouter contract via LayerZero messages. Liquidity pools therefore work as one unit while being split across different chains.
InterSwap Protocol is implemented as a set of persistent, non-upgradable smart contracts, deployed across each supported network. LayerZero network uses Ultra Light Nodes (ULN) to verify and deliver messages with secured payload between supported chains.
Learn more about how LayerZero's protocol works through its whitepaper