# What is Frax Finance? frxUSD, Fraxlend and When to Skip It

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**Publisher:** Decentralized Finance Publication (https://decentralized-finance.io)
**Author:** Kaiser Khan
**Reviewed by:** Kaiser Khan, Editor in Chief
**Category:** Stablecoins
**Updated:** June 2026
**Trust:** Independent, ad-free editorial research. No display advertisements, no paid protocol coverage, no affiliate-driven rankings.

## Summary

Use Frax when you specifically want frxUSD, sfrxUSD or Fraxlend — including as Resupply collateral or LlamaLend V2 collateral. Skip Frax if you wanted simple Circle USDC or Sky USDS as your only dollar stack. Educational research, not financial advice.

## Should you use Frax?

Yes — if you have a reason to hold frxUSD/sfrxUSD or to use Fraxlend, including as collateral elsewhere in the Curve stack. Skip it as a first stablecoin. USDC is the simple issuer dollar; Sky is the Maker-line dollar. Frax is a crypto-native stack with several products that share a brand.

Live TVL sits on DeFiLlama. Our rankings table was stamped 2026-08-27. TVL is assets locked — not a safety score and not a reason to deposit.

## What are frxUSD, sfrxUSD and Fraxlend?

frxUSD is Frax’s dollar token; sfrxUSD is the staked wrapper. Fraxlend is isolated lending. Resupply can take Fraxlend positions as collateral to mint reUSD. Curve LlamaLend V2 listed sfrxUSD as early Ethereum collateral in July 2026 (Vote 1451). Those are three layers — do not merge them into one ‘Frax yield’.

## Frax vs Sky vs USDC — which should you use?

USDC for issuer reserves. Sky for USDS and sUSDS. Frax for this stack and its Curve and Convex links. Peg and redemption paths differ. Check the peg tracker. Convex vlCVX often votes Frax-related gauges — that is politics, not a coupon you are owed.

## Which Frax risks actually bite?

Stablecoin peg, Fraxlend liquidations, and stacked contracts if you loop into Resupply or LlamaLend. A Curve gauge listing is not a Frax solvency guarantee. We do not publish an sfrxUSD APY. Three layers share a brand — do not merge them into one yield.

## Where is the official Frax site?

The site we name is frax.com. Resupply is resupply.fi. Curve LlamaLend is on curve.finance. This page is whether frxUSD or Fraxlend is the product you wanted versus USDC or Sky — not a reason to treat the whole brand as one vault.

## Frequently Asked Questions

- What is Frax? A stablecoin and lending stack: frxUSD, sfrxUSD, and Fraxlend, at frax.com. It is not Circle USDC and not Resupply, though Resupply can sit on Fraxlend collateral.
- Is Frax the same as Resupply? No. Resupply can use Fraxlend positions as collateral to mint reUSD. That is a second protocol with a second risk engine.
- What about LlamaLend V2? Curve listed sfrxUSD as collateral in July 2026 via Vote 1451. That is Curve’s isolated market, not a Frax CDP and not Resupply.
- Does this page recommend FXS? No. Educational research only. We do not recommend holding frxUSD or buying FXS.

## Sources

- [Frax](https://frax.com): Official site
- [Frax on DeFiLlama](https://defillama.com/protocol/frax): Live TVL

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