All Reviews

Based on 109 reviews
Amazing product

I love all their shirts, amazing material fits and feels like it was Nike but cheaper and with a better logo! Wish I had money to buy all the shirts, they sell out quick so get your size if it’s available!

Great quality

The stainless steel 25OZ shaker bottle is amazing, it gives you an edge with a couple extra fluid oz, it keeps your water COLD, and it mixes very well if you put a ball in it! If you wash it in the dishwasher with hot water it will rub the black off and make it silver spotted ( like mine) and it’s a struggle to cap it without putting it on the floor and pushing down hard. Other than that it’s perfect for anything, especially putting extra supplements in and still having it taste good!


This pre is amazing period.

Peach Mango K9

This flavor is delicous. Has a nice balance of flavors. It mixes very easy, no blender ball required. The affects of the pre are just right. Im never overwhelmed with energy or the itchy feeling, but i always end with a good pump and enough energy for my 10hr work shift. Ive been taking K9 pre for a few months now and look forward to the next new flavor!!


Im EXTREMELY skeptical when it comes with any sort of supplement. I’ve never heard of Alpha Theory before and I decided to do my research. I’ve never had any pre workout or intra workout more effective. I am extremely focused. I’ve felt a lot more positive as well with my daily life. I also love their apparel and accessories!
The only issue, LITERALLY NOTHING SERIOUS, is that I did order the bottle shaker and I couldn’t close the lid cap where you sip out of, it was closing a bit too short not reaching the entire surface area where to sip out of haha. Other than that literally not a big deal could’ve been just a malfunction with creating the cap.
Honestly nothing wrong with Alpha Theory and I wish and hope that they expand further and make themselves known to others!


Great flavor. This has definitely been helping me recover on tough workout days! Definitely will be restocking on this!

Mens embroidered hoodie

The embroidery is nice and clean! The sweater fitment is great! Not too tight or lose. The hood is also perfect! Overall a great buy!!

Quality Tank

Super comfortable material. Fits well. Looks cool. Makes my back look huge, which is a plus

Awesome Product

Very stylish. I’m 170 lbs and I got a small and it’s snug (but that’s how I like it to fit). SUPER soft. Love this hoodie

My favorite sweatshirt

I absolutely love this sweatshirt, it’s very comfortable and soft, highly recommend


I went into the use of this pre workout with a lil skepticism...I hadn’t used any from anywhere in about a months time and I wanted to find something new that had an immediate impact...I found that in K9. The affect blew my expectations out of the water. If your lookin for that push to last through your whole workout K9 is where it’s at.

Love this product super beneficial to me and my gainssss

Awesome Products

Taste is Amazing, Results are Fantastic. Definitely will be ordering again when I am out! Thanks Alpha Theory & Marco Tonello for the Referral.

A1 customer service and products 💪

I love K9 stim so much the pumps are unreal nice clean energy perfect combo of ingredients 🔥 always getting killer days in with it.

Grate material

Super soft shirt, stretchy and comfortable, definitely recommend this

K9 BLACK Pre-workout (Higher Stim)


The peach mango is to die for!!

Pre-Workout (Higher Stim)

If you’re looking for a pre workout that, not only tastes good but, gives you that pump to power through any workout then look no further! Tingles and blood flow that will give you the energy to get through any workout!


I absolutely recommend this preworkout! It taste great, easy to drink the flavor is amazing!

Embroidered Hoodie

This hoodie is very comfortable. The quality of the clothing is on point. I really like that there is plenty of room in the hood and it covers your whole head ( I have a big head so I really appreciate this lol). Price wise it is good and I feel you’re paying worth your money. I think Alpha Theory does a great job with their apparel and I’ll most definitely be buying more clothes and products from them!

Very Tasty!

The pink lemonade flavor is incredibly tasty. It's so refreshing, I would happily drink it on a hot summer day. I don't notice any crash post-workout, but even after just half a scoop I do experience the itchy tingles in my hands, ears, and face. I'm a small human though, so it doesn't take much.

K9 BLACK Pre-workout (Higher Stim)

Great Preworkout!

I Have tried this for a little over a week now and am very pleased with the results. Mixes easily, tastes great, not gritty and the energy and pump are strong!

K-9 Preworkout

Absolutely love it! Gets me pumped to work out and doesn’t leave me with a crash or gross metal taste