Hammer Gel energy gels are 100 percent pure complex carbohydrates. Made with real fruit and wholesome ingredients, no artificial colors or sweeteners. Contains sodium and potassium to counteract cramping and post-exercise fatigue. Espresso and Tropical contain caffeine. Gluten-Free and Vegan Friendly. The virtual absence of simple sugars allows for easy digestion. Can be used straight, diluted or as a flavoring. Contains no MSG. Complex carbohydrate formula, no added simple sugars.