By Optimum
ZMA Optimum
Overall Score:
(Weighted average based on 44 Reviews)

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ZMA ranks #1 of 36 in (Growth Enhancers > Nighttime Sleep Formulas) and is rated better than 100% of all products in this category.


Trust: 100%

Cray's ZMA Review

Overall: 10 | Effectiveness: 9 | Value: 10

As my supplement knowledge grew, I began to want to learn more about natural testosterone boosters. ZMA kept popping up during my search as being a natural and affordable option to supporting and optimizing test levels, as well as aiding in muscle recovery. For those unaware, ZMA is a blend of zinc,...


Trust: 100%

The sleep is very deep and you feel very refreshed and energized

Overall: 9 | Effectiveness: 9 | Value: 9

Finally got a chance to sit down and write this review of ZMA.

Like with any training split you are on, sleep is critcal to the overall growth, recovery and general well being. Like they say, "You don't build muscle while in the gym". A solid 8 hours of deep sleep is critical and should never...


Trust: 100%

Meuth's ZMA Review

Overall: 10 | Effectiveness: 9 | Value: 10

As most of us already know, ON is a top notch company. I had tried ZMA in the past from another company no results. One of the sites I order from had this on sale last summer so I thought I’d give it a try since it was ON. Let’s just say that it was successful so here it is 7 months later and...


Trust: 100%

CamSTL's ZMA Review

Overall: 9 | Effectiveness: 8 | Value: 10

Well, I said I would start getting more involved and why not start off with a supplement that's blowing up big right now. Move over Compound 20. Get out of the way D-pol. Yes ladies & gents. Im talkin about Optimum ZMA. Lol...ok maybe I blew that outta proportion but this is a top notch supp right here....

Trust: 100%

kerner530's ZMA Review

Overall: 10 | Effectiveness: 10 | Value: 10

I just finished up my bottle of ZMA and i must say this is going to be another staple in my stak.

Effectiveness: Everyone already knows the importance of sleep. For me personally I have an extremely hard time falling asleep and staying asleep. I wake up several times during the night and have a hard...


Trust: 100%

It will help you get much more restful sleep

Overall: 9 | Effectiveness: 9 | Value: 9

No need for a long review on this stuff since the effects of ZMA are very simple. It will help you get much more restful sleep and even help with natural testosterone production. I pop three of these on an empty stomach an hour before my bedtime casein shake and it makes a big difference in the quality...


Trust: 100%

krystian's ZMA Review

Overall: 8 | Effectiveness: 8 | Value: 9

Hi. This is my second review. I hope you'll find it useful.

A brief recap of who I am: a regular guy, 41, work full-time at a desk job. Been working out consistently for the past 9 1/2 months. I discovered this site, did some research and entered the world of supplements cautiously - starting with...

Trust: 94%

BenSimon's ZMA Review

Overall: 10 | Effectiveness: 10 | Value: 10

AMAZING! This product is a killer good one. I love this thing. This product is a need for everyone in the weight lifting catigory.

Okay enough bragging about the supplement lets talk up the ups and downs.

Taste: ZMA from Optimum comes in a pill form, the pills are medium size so they should be...

Trust: 0%

PumpEatPump's ZMA Review

Overall: 9 | Effectiveness: 9 | Value: 9

Stacked with a bunch of other products.

bought a month for about 20 buck which isn't too bad. I couldn't give ten because it didn't give me the sleep I wanted. I woke up with boners every day so it may have helped me get a deeper sleep.

Product is basically just zinc magnesium asparate....

Trust: 61%

adams123's ZMA Review

Overall: 9 | Effectiveness: 9 | Value: 10

Optimum Nutrition is one of the top three companies out there right now...hands down. With that being said, when I want supplements with very simple ingredient profiles I look to Optimum, and have done so for the past year on the advice of Olympic trainers and nutritionists.

Taste: 10, I say 10...