Garden of Life Grass Fed Collagen Peptides for Collagen Beauty Powder dissolves completely and the flavors are great. The unflavored can be added to any drink and you won't know it is there. There is no clumping. It has a combination of grass-fed collagen. You get 12 grams of collagen and 11 grams of protein in only 50 calories along with probiotics, biotin, silica and vitamin C which helps the collagen adsorb.The range for collagen really depends on what results you want with most diets recommending between 10-15 grams. I have read studies that the amount varies if you are taking this to plump out your skin and that varies depending on your weight. I am shooting for 25 grams a day and take another supplement to give me that additional 5 grams. The powder can be a bit more expensive but I think that it actually gets into your system better.I have noticed that my arthritis isn't as bad after taking these supplements for a month and the creaking of my knees has really gone down as well. I am able to walk on the treadmill for longer periods of time without pain. I don't think I have been taking it long enough to show results in my skin but the area under my eyes is a bit more full and some fine lines are diminished.