The 5 Top-Rated Collagen Powders You Need to Try in 2019 — All on Amazon

After using Sports Research Pure Hydrolyzed Collagen Peptides ($27), one customer said, "I gave it a full month before leaving a review, just finished the last scoop yesterday. I put it in my coffee every morning, never noticed an aftertaste and it dissolved easily. But let me tell you, I would straight up lick it off the floor even if it tasted like cat litter because my hair and nails are so glorious."