Been using this for about 3 years now, love it! No cramps, no joint pains, no negative side effects. Your nails and hair will grow too fast, like two days fast. That would be my own downside of it.

I'm a long consumer of Vital Proteins Collagen and love it. This time I wanted to try Sports Research which is a very good brand as well. I like that it dissolves quickly in my morning coffee and no aftertaste. Can't tell about its effects on the body because I just started taking it.

I don't normally take the time to review items but I've been using this for 3 years and my hair %26 nails thank me. I was buying online for nearly twice the price. Thank you Sam's for carrying so many ORGANIC, GRASS-FED, high quality products at warehouse prices. Keep up the great work!

This is my first collagen powder, I don’t notice the sour taste or bad taste others have mentioned, I add to my coffee. My skin is noticeably better, less crepey. I will continue to use.

really love this. I've been buying it now into 2 lb. no flavor, no taste. mixes. fare well with anything. even bottled water and two stirs and it's gone. it's mixed

[This review was collected as part of a promotion.] I use SR brand with other supplements. Wanted to try small organic, grass fed unflavored in ky night warm mushroom cocoa. No tummy issues & feel helps quality of sleep for me due to Protein & amino acids. On my 2nd order.

I wish I had listened to the reviews that mentioned the sour taste. I thought it wouldn't bother me, I typically put it in my hot tea or coffee. But I can't get past the flavor and smell of it, definitely an odd/sour twist. I'm a long time user of Vital Proteins but trying to find an alternate, and this isn't it.

I used to order directly from Sports Research and decided to try this one instead. Taste was definitely off compared to the original. Tried it for a couple days but had to return it.

Decided to try this as a change. So disappointed! Added to my morning coffee and it made it taste sour/salty. Horrible unexpected flavor. Going to return and buy my usual Vital Proteins.

Tastes awful. I have used Vital Proteins for years, which blends into my coffee with no taste. I tried this one on sale, and it tasted terrible. Had to pour out my coffee. Was refunded.