Restaking is one of the most important DeFi concepts of 2025-2026: it lets the same already-staked ETH simultaneously serve as economic security for multiple protocols, multiplying the points where that capital generates yield without splitting the principal.
EigenLayer is the protocol that opened the category and, two years after launch, holds over $10 billion in TVL. This guide explains exactly what restaking is, how EigenLayer works in non-technical terms, what AVS and liquid restaking protocols are, what yields to realistically expect, and what risks you take — because they are real and specific to the sector.
What restaking is
This article is part of our complete series on DeFi. If you're new to the topic, start with the pillar guide: DeFi for Beginners: What Decentralized Finance Is and How to Start.
Restaking lets you reuse your staked ETH as economic security for other protocols beyond Ethereum. The analogy isn't perfect but helps: it's like if your bank deposit, without moving it, served as collateral for several banks simultaneously and each one paid you interest for it.
The underlying idea is elegant: when you stake 32 ETH on Ethereum, your capital is backing network security and in return you receive ~3-4% APY. But that capital "doesn't do anything else" — its only purpose is to be locked as economic deterrent against attacks. EigenLayer leverages that passive capital so it also backs the security of other systems that need economically committed validators.
In exchange, the protocols receiving that economic security pay you extra. The result: a single ETH can generate base staking yield + yield from N additional protocols.
How EigenLayer works step by step
The flow, simplified:
- You stake ETH on Ethereum, either running your own validator (you need 32 ETH and technical knowledge) or via a liquid staking token (stETH from Lido, rETH from Rocket Pool, cbETH from Coinbase, etc.).
- You deposit that ETH or LST in EigenLayer, which holds the slashing rights — meaning the right to slash your capital if something goes wrong.
- You choose which AVS to delegate your security to. AVS = Actively Validated Service, the protocols paying for restaked economic security (see next section).
- You receive additional rewards from the AVS you delegated to, normally paid in their own native token or in ETH/USDC.
- You can exit when you want respecting each AVS unbonding period (typically 7-21 days, similar to Ethereum's native staking).
Real operational complexity is in choosing well which AVS to accept — each one has its risk profile, its token and its specific slashing conditions.
What AVS are and what they're for
AVS (Actively Validated Services) are protocols that need a set of economically committed validators but don't want / can't bootstrap their own validator base from scratch. Common categories:
- Cross-chain bridges: need validators that sign attesting assets are locked on one chain before minting on the other.
- Data availability layers (EigenDA and similar): need validators confirming data is published and available.
- Oracles: need economically committed signers reporting off-chain data.
- L2 rollup decentralized sequencers: need validators to prevent censorship.
- MEV protocols: need reliable operators to build blocks.
Each AVS defines its own slashing conditions — what behavior slashes capital and how much. Before delegating, read the documentation.
Liquid restaking: the UX layer
Few users want to manually manage AVS delegation one by one. That's why a liquid restaking protocol (LRT) layer has emerged, abstracting all that complexity:
EtherFi (eETH)
The largest LRT by TVL. Accepts ETH directly (no prior stETH required), manages AVS delegation for you and issues eETH as a liquid receipt you can use in other DeFi protocols while your ETH generates yield in EigenLayer.
Renzo (ezETH)
Similar structure to EtherFi, focused on optimizing the AVS basket to maximize risk-adjusted yield. ezETH integrated in many DeFi protocols as collateral.
Puffer (pufETH)
Liquid restaking with emphasis on anti-slashing tech — using additional cryptographic keys that reduce slashing risk from validator operator errors.
Kelp, Swell, others
The sector is saturated. Most LRTs offer similar functionality; differentiation comes from AVS basket, fee structure and DeFi integration of the receipt token.
Realistic yields
Numbers to expect in 2026, not counting temporary promotions or airdrops:
- Base ETH staking: ~3-4% APY (consistent, varies with on-chain activity).
- Additional restaking via AVS: +1-5% APY additional, very variable by AVS and timing.
- LRTs with active points / airdrop farming: "true APY" can be hard to measure until points convert to liquid token.
Sustainable total potential: 4-9% APY in ETH, with high ranges corresponding to greater risk taken.
Beware of platforms promising 15-20% APY from restaking — almost always include temporary subsidies (points, expected airdrops) that are not sustainable.
Real risks worth assuming
Restaking adds layers on top of staking — and each layer adds risk. The main ones:
Amplified slashing
If you do native staking and the validator misbehaves, you get slashed once. If you restake and delegate to 5 AVS, a serious fault could trigger slashing on several simultaneously. The "slashing vector" is wider, and quantifying the worst case is the first thing you should check before delegating.
Smart contract risk
EigenLayer is a young protocol (launched 2023). LRTs on top are even younger. Each added layer is auditable code but not immune to exploits. Historically, the most recent protocols have higher probability of serious bugs in the first 12-24 months post-launch.
Operational complexity
Understanding which AVS you're backing, under what slashing conditions, with what tokens they pay you and what would happen in an adverse scenario requires significant work. For the average investor, this complexity is reason enough not to enter.
AVS adoption risk
Some AVS may not find traction and stop generating rewards. If your expected yield depended heavily on a specific AVS and it "dies", your real yield falls without you doing anything different.
Nascent and untested in crisis
The entire category has not yet gone through a severe bear market combined with an adverse technical event. The economic security models are mathematically sound in theory, but in crypto things tend to break in unforeseen ways.
How to enter (if the risks fit you)
Three routes based on your level:
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Beginner: if you're not clear on what you're doing, don't enter restaking. Stick to simple native staking on an exchange (Coinbase, Binance) or use Lido's stETH and forget about it. The additional 1-3% is not worth it if you don't understand the risks.
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Intermediate: use an established LRT (EtherFi, Renzo) with moderate amounts (part of your staking position, not all). Deposit ETH, receive eETH/ezETH, use it as collateral in lending if you want to add another yield layer.
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Advanced: delegate manually via EigenLayer choosing specific AVS based on your thesis. Follow the ecosystem closely, review slashing conditions, diversify between 3-5 AVS.
To start simple, integrated exchanges like Coinbase or Binance offer native ETH staking. For LRTs and DeFi operations, a Rabby + Ledger wallet is recommended.
Conclusion
Restaking is conceptually fascinating and represents a real innovation in shared economic security. EigenLayer has captured over $10 billion in TVL because the thesis is solid and additional yields are real.
But it's not for beginners. Operational complexity and amplified slashing risks mean most investors should wait for the category to mature another 2-3 years before taking serious exposure. If you already stake ETH and understand basic DeFi mechanics, an established LRT with moderate allocation can boost your yield without taking exorbitant risks.
The golden rule in restaking: don't put more capital in EigenLayer/LRT than you'd be willing to lose if something breaks in a layer not yet tested in a serious crisis. Start small, scale slow, read documentation.
