Product Review: Bulletproof Bars Collagen Protein Bulletproof Bars Collagen Protein are a great option for those looking for a high-protein snack that is also keto, paleo, and gluten-free. These bars come in a variety of flavors including fudge brownie, which makes them perfect for satisfying your sweet tooth while still sticking to your dietary restrictions. One thing I appreciate about these bars is their use of collagen protein. Collagen is an important nutrient that helps support healthy hair, skin, and nails, and it's not always easy to find in food sources. By including collagen protein in these bars, Bulletproof is providing a convenient way for people to get this essential nutrient into their diets. In terms of taste, the fudge brownie flavor was my personal favorite. The bars were chewy and had a nice chocolatey flavor that made me feel like I was indulging in something sweet without going overboard on carbs or sugar. They also came in handy as a quick snack when I was on-the-go or needed an energy boost during the day. Overall, I would recommend Bulletproof Bars Collagen Protein to anyone looking for a high-protein, keto, paleo, and gluten-free snack option.