Good basic unflavored collagen
I'm a longtime user of collagen powders, so I've tried many different brands and products.  This is the type of unflavored collagen is my preference, as it's the most versatile.  This has basically no flavor, dissolves easily in hot and cold liquids, and gets the job done.  I mostly mix this in smoothies, where it makes no taste of texture difference.  I'm also a fan of adding collagen to soups and stews to boost the nutritional content.  My only reservation with this is the current price, which is a little higher than other comparable products.
Rating: 4 stars