We only make one type of protein bar because it is THAT good.

Zentein Nutrition Inc - Delicious collagen protein bars with 25 grams of protein and made with just 5 recognizable ingredients. Zentein Nutrition Inc - Delightful collagen protein bars with 25 grams of protein and made with just 5 identifiable components. Collagen is easily the most abundant protein in our connective muscle tissues and it's essential on their health and formation. Connective tissue in the body do exactly as their name implies: link up a variety of parts in the body with each other. As such, collagen can be found in our skin, our muscle tissues, our tendons and ligaments, within our blood vessel walls, and more. Our body can naturally produce collagen when eating the right foods (meats, bone fragments broths, foods with Vitamin C) however the quantity and quality of natural collagen production decreases with age.