DEFINE & SOFTEN CURLS. One product, two functions. Doing double duty in the hair department is the Aussie Sprunch Mousse & Leave-In Conditioner. This workaholic softens hair and brings extra bounce to your curls without weighing them down. That’s a lot of responsibility to carry, especially for 24 hours. This formula, infused with jojoba oil for soft hair, gets it done. Not only that, but it smells great and brings all the fresh citrus notes to your curls.