I have tried this product in both capsule and tub pre workout form, I will be reviewing the latter. I had fruit punch flavour and it was rather enjoyable indeed, bordering on tasty. What I am about to say is rare but I genuinely felt this product activate in actual minutes, as in 2-4 minutes. I can't say i'm used to that with pre workouts. One may theorise it's due to the caffeine citrate but lots of products contain that and don't kick in quite this fast. The energy and focus grows at a steady rate for around 40 minutes and levels out, the energy is excellent for any style workout perhaps excluding intense cardio. I found the energy to last around 3 hours and then softly fade out without crash. I like that you get 30 servings and Insane Labz always have nice tasting pre's so yes I would recommend it certainly.
StimNGym
Reviewing since Mar 2026
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With these being capsules a lot of the usual's in a review in a typical pre workout are not pertinent such as taste, mixability and beta alanine tingles. You get 60 capsules per container and 1 is more than enough, 2 is simply overkill. Upon consumption the white rush capsule kicks in fast, around 20 mins in you're feeling much more energy than before and this proceeds to increase at a steady pace for say another 40 minutes. What you're met with is a clean focus and perfect amount of energy for any style workout, whether cardio, weights or heavy bag work. At no point is the alpha yohimbine or 2 amino too much nor do you feel like consuming another capsule, not necessary. The energy lasts around 4 hours and tapers off nicely with no notable crash. Overall for the price point and large amount of servings I would recommend this product.
The only flavour of this product i've tried is iced gummy and it is really smooth, I actually enjoy it a lot. To begin with this product contains L theanine which usually puts me off but in this product even at 100mg it didn't make me feel tired which I normally get from pre's containing it. The effects took quite a while to take over, maybe 50 minutes to truly feel it.. but I was met with smooth and clean energy, with nice alpha yohimbine effects to bolster the multi stage caffeine blend and the pumps were extremely impressive. The energy lasted around 3 hours but zero crash and it never felt underwhelming. I enjoyed every single experience I had with inhuman so I would recommend it as a great regular use pre, the only drawback is the 21 servings per tub.
I am writing this having tried every single version of Flame, v1,v2 and every release of v3. The flavour of the current v3 batches are better versions of the original flame flavours. Blueberry lemonade is my favourite of all of them. Flame has no niacin or beta alanine so the first effect that takes hold is coming strictly from the caffeine citrate and then the other stims kick in within the hour. I found the effects to last a good 6 to 8 hours with no crash! I could do even high rep sets with ease and any song was easier on the ear due to increased mood elevation. I really appreciate Flame being such a light scoop compared to most current pre workouts and it doesn't cause the heavy stomach from some of the 25 gram pre's for example, it just shows you can get good energy + pumps + focus with under 5 grams. I would recommend this pre workout for sure.
This pre workout flys under the radar but I was left impressed. First off the taste of the flavours I tried was quite nice, not bitteror too chemical esque. Something to note about this product is it known to clump and even turn to goo so I advise consuming it in the first few months to avoid this. The effects kicked in within the first half an hour and the beta alanine tingles were quite potent for 3200 mg of beta. I found it to be smooth with no side effects and the pumps were incredible. The energy lasted about 3 hours with zero crash, it was a nice blend of stim + focus + pump. Overall I found this product to have parallels with Lionheart pre workout in the sense that the label looks quite tame but it over delivers possibly due to GBB and the nootropics plus a lot of ingredients are patented high quality sourced. I would recommend this pre.
This product blows my mind that it can be so affordable yet hit effectively every time. I have tried numerous flavours but strawberry watermelon is my favourite, not the best but easy to drink and with the light 7 gram scoop it's easy on the stomach. I find it kicks in both fast and smoothly, it is a true pre workout in the fact it never feels too much but at the same time provides everything you need for a solid workout. The energy and slight mood uplift lasts around 3 hours and there is zero crash which is important to me. The blend of yohimbine and other bits and pieces synergize very nicely. Two fair critiques I can make are the addition of creatine when you have to take that long term to reap benefits and at a dose higher than can possibly be in this pre and also the fact the product is a proprietary blend as I really want to know how many mg of each ingredient i'm consuming. Overall I would recommend this product as it's extremely affordable with 30 servings and quite effective.
The flavour I had was grape bubblegum, not enjoyable at all and very strong tasting but not the absolute worst. The effects kicked in both fast and surprisingly smooth for how strong the label claims to be. It provided productive workouts and the effects lasted around 3 hours but there was a crash, not the worst but too much for my liking. I expect a label with that much 2amino and other bits like caffeine and noopept to last much longer than I got from this product. Overall it was alright with solid pumps but not something I could truly recommend as in the high stim realm there are much stronger candidates that I do not experience a crash from and that provide far more in terms of the 2amino full spectrum experience.
I write this having tried every batch of this product, the original being by far the strongest but I will speak about the current batch which has no (geranium) I will start by saying every flavour both of the original gold and the current gold are not nice but often is the case with strong pre's! I now must say I wish the current iteration was not even called gold as it is nothing close to the original batch of old. I found gold to kick in fast, around 15 minutes and my energy was increasing. The effects lasted around 5 hours and I noticed quite a crash. The pumps and focus were lacklustre. Overall I would not recommend the current version of " crack gold " as it is not even close to the original batch which was one of my favourites of all time.
A change of pace, a sleep aid! The flavour I tried was peach mango and it was extremely enjoyable in any amount of water. I found it kicked in after about 20 minutes and the calming effect grew but in a nice manner, after about an hour I was more than ready to go to sleep. I have experimented with a third, half and a full dose. A third was subtle but worked, half was great and a full scoop was very powerful. I like that it doesn't contain phen yet is so powerful, this lends to the ability to use it with a higher frequency. Unlike a lot of sleep aids I find myself never feeling groggy upon waking after Hibernate and even if I get 6 hours I feel better than I would had I not taken it. Ideally you'd get 7-9 hours sleep with it though. I would fully recommend it and like that you get 30 full servings which is rarer and rarer in the current market.
Firstly the taste of Crz was a very subtle and tasty blueberry and I found it to be very enjoyable as in better than 95% of pre workouts. Now to the effects of the current 12/28 batch: No beta alanine tingles or niacin flush which is rare for a modern pre workout but anyone in the know will be purchasing something like Crz for the focus. As it pertains to the effects they take a while to kick in, as in upwards of an hour so do not re dose.. wait 90 minutes even as it can take anything from 50-80 minutes to fully activate. The focus is very potent and the mood uplift is noticeable but not huge, just a nice blend of the two around 75/25 focus/euphoria. I have experimented with the standard dose, with one and a half scoops and two scoops. At the standard one scoop it is enjoyable but on the mild side, but once you reach anywhere between 12 to 14 grams the focus and longevity is elevated exponentially. At one scoop it lasts around 5 hours but on the doses I mentioned it is more along the lines of 10 hours. It in my opinion is better for long work days than hard workouts as it's all focus and no pumps or aggressive energy. Overall I would recommend Crz.