Skinnygirl® Sweet'arita. Slightly sweet & low in calories. Made with blue agave silver tequila, triple sec, natural flavors and caramel color added. Natural flavors. Open & serve. 9.95% alc/vol (19.9 proof). 1.75 liters. Everyone loves sweet margaritas, but no one wants the guilt or the calories. That's why I created the Skinnygirl® Sweet'arita. Made with natural flavors, blue agave silver tequila, and made slightly sweet with agave nectar. Skinnygirl® sweet'arita: the margarita you can trust. - Bethenny Frankel. (Per 1.5 fluid oz - average analysis: calories 37.5, carbohydrates 2.7g, protein 0g, fat 0g). Contains caramel color. skinnygirlcocktails.com.