Great product

Good stuff

Works as advertised. I'm adding reps and putting on some weight

Been using it , it works

It says it in the Label

Great at adding mass

I like it

Great the flavor is good

Awesome product!!

The Mass XXX is the next product!!

I love everything about this protein powder.<br />It has great taste and I have seen amazing results in body and strength. Most definitely worth the buy.

Terrible bew flavor returned

Terrible bew flavor returned

Terrible new flavor

Returned because new flavor are extremely artifical & disgusting

It's great ad gives the body wht is missing

Good Product

As the title says - good product. Tastes decent, mixes easily, and I have seen positive results (endurance and some gains) within the first two weeks, as advertised. Moreover, I haven't always taken the full serving.

3 Michelin stars??

It's more powder by volume than my previous shake, has more calories, and still manages to go down WAYYYY smoother. best way to describe it is like a perfectly melted shake from in n' out or something. some gourmet stuff fr

Very good protein

Mass XXX Cookies and cream

Taste isn't bad. I would give it five stars if it had no soy in it. A lot of us taking Mass XXX and similar products are doing everything we can to avoid soy. This has soy protein and soy lecithin.

Good flavor

Great Protein and taste really good

Taste great

Ive used several different gainers and this 1 by far taste the best, as well as seeing great results from using it

This is the best protein powder I've had and it definitely gives you the results your looking for you will not regret it !!

Tastes good.

Love it I gain 8 pound's in 3 weeks

Very professional staff

Love this product, so far so good

Loving it!

I'd recommend this product particularly to anyone who targets a mass gain. It's gotten a plenty of nutrition yet amazingly easy to drink. I take it whenever I workout and I'm always excited to drink it when I get back from the gym!

MEATINESS!!!

MASS XXX alone TASTES GREAT!! PLUS it has such side effects of Increasing my STAMINA and GAINS beyond expectations!!. THE ONLY guarantee I have with MASS XXX is that if I decide to quit, I can have my old body back!!

Good stuff

Good stuff

Good stuff

Good stuff

I've put this product to the test I believe it combines everything I need in one mix.

Product is great. I put on strength and muscle

Great stuff

Helped me gain my strength back after missing 2 months from the gym due to a fractured wrist! 10 stars!

I do not like the Motor that's been added.

I always loved the Performance Mass XXX strawberry it worked well and the taste is awesome<br /> I don't like the Myotor that's been added to it. It really messes with my stomach.

Amazing fast results and always improving my life & my daily workouts thank you GNC.