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Vital Proteins Collagen Peptides Powder ($12, originally $15)

People take this powdered collagen supplement to help their hair, skin, and nails look healthier, and to give their joints and muscles a little extra love. It's especially great if you're doing strength training since it can help support muscle growth, too. Read our full Vital Proteins Collagen Peptides Powder review to learn more.

Editor Quote: "One of my favorite things about the collagen peptides powder was that it added a hearty dose of protein to anything I ate or drank throughout the day (nearly 20 grams of protein per serving). Beyond all the other health benefits, it transformed something as simple as a black coffee or low-protein soup into something much more satiating, keeping me full for longer." — Christina Stiehl, former senior fitness editor