








🚀 Elevate your grind—stim-free, no compromises.
Transparent Labs Stim-Free Pre-Workout is a stimulant-free, caffeine-free formula designed for men and women seeking enhanced muscle pumps, focus, and endurance. Featuring 23+ grams of 13 clinically dosed active ingredients including 8,000 mg Citrulline Malate, Beta-Alanine, and elevATP, it supports lean muscle gain and workout performance without jitters or crashes. Fully transparent labeling ensures clean, trusted supplementation in a refreshing Blue Raspberry flavor, ideal for professionals cycling off stimulants or sensitive to caffeine.













| ASIN | B0CS3WZTJ2 |
| Best Sellers Rank | #10,222 in Health & Household ( See Top 100 in Health & Household ) #42 in Sports Nutrition Pre-Workout Powders |
| Customer Reviews | 4.3 4.3 out of 5 stars (468) |
| Date First Available | February 9, 2024 |
| Manufacturer | Transparent Labs |
| Package Dimensions | 6.65 x 4.53 x 4.41 inches; 1.38 Pounds |
P**E
No Caffeine but comes on STRONG
I wasn't expecting much from a caffeine-free no stim pre-workout this stuff comes on strong energy, "tingle," no buzz I've seen reviews complaining of the taste, I purchased the Tropical Punch, nothing wrong with the taste but if you're used to sweet sweet Kool Aid and strong sugary flavors be prepared to be disappointed, it's a mild fruit taste, not too sweet ... is it a little grainy, yeah ... it's not a dessert, it's a pre-workout mix, I'm giving it five stars for doing what it's supposed to do and tasting/mixing way better than I expected Takeaway, the taste is not unpleasant, and if you want it thoroughly dissolved use a blender and warmer water, I use cold water and hand mixer, a little grainy, not too sweet, not overpowering flavor, gives good energy lasts a long time
A**R
Works great and is a clean product product
I’ve been using transparent labs products for over a year now a little pricey, but worth it if you train regularly. Awesome, clean an effective product. If you want to bulk up you will get that pump if you’re leaning out like I am to have a more athletic look, works great but of course with any product you take, nutrition is 90% the battle. You will get the tingling effect for a few seconds, but goes away quickly. I’m 59 years old and do hiit and metabolic conditioning style training. I’m a big proponent of kettlebell which I have been doing for over a year now. When those workouts get intense, I’m able to push through and go a little further, which is great for those heavy days if you will. Basically stim free does the job when it comes to pump and energy to get the job done. I do recommend cycling off after you finish your tub for about 7 to 10 days, it’s just what I do and works for me. So if you like stim free, do the subscribe and save which I recommend.
M**H
Great taste
This stuff tastes great. Definitely gives you the tingly’s and if you breath in the dust you will be coughing😂 helps quite a bit with clean energy without caffeine because I usually work out around 6pm. Although I will say if i take it that late in the day I had trouble getting to sleep. But otherwise its a great pre!
C**R
Best Pump, Possible Nausea
I've tried so many pre-workouts, including many stim-free ones. This gives the best pump by far, it's like my muscles are warm and ready to go before I even walk in the gym. The issue is I work out fasted most days, and this stuff destroys me on an empty stomach. A few times I was too nauseous to lift and had to wait 20 minutes for it to pass. But if you work out later in the day after you've already eaten, or if you have an iron stomach, it should be alright.
M**L
Good stuff, getting close to old C4
I have too much caffiene in a day to want it in my preworkout. Fire stuff, will definetly be buying more flavors in the future. If you drink this stuff and wait too long, you're gonna tweak.
E**.
Taste Actually Makes Me Shiver
I've been testing out different pre workout brands for a while, and I've yet to find one that has good ingredients and tastes good at the same time. And if you couldn't tell by the title, this only checked one of those boxes... First off, the ingredients and macros are amazing. While it doesn't have caffeine, this brand is great if you're trying not to intake junk ingredients. The only thing keeping this from a 5 star review is the taste... At first, it seems nice as it tastes like strawberries and cream, but as the days go by, it really grows on you. It quite literally makes me shiver and sometimes gag. As for in the gym, it's relatively "ok". I haven't noticed any improvements since I've started using it (1 month ago), but that's most likely due to the supplements I've taken before. If you never had pre-workout before, this should be pretty effective, but be aware of the itchiness from the beta-alanine. On money, I'd say it's pretty good. Compared to other brand like Genius, this is a lot better value for money, even if it tastes a bit worse. Overall, PLEASE double check what flavor you're getting and if you truly want it. I've only had the Peach Mango and the Strawberry Lemonade, and from my experience, please don't go for them.
D**N
Pleasantly surprised by both flavor and effectiveness
First, I was pleasantly surprised by the flavor. Some of the reviews here had me dreading it, but I've tried both strawberry lemonade and blue raspberry, and can happily report that they're both decent. It's about the flavor you'd expect if Monster Energy made a strawberry lemonade or blue raspberry flavor....not something you'd drink for fun, but if you can handle Monster, this will taste fine. As for effectiveness, I bought both Lean and Stim-Free, and both of them make an immediate and noticeable difference. I can't yet comment on long term gains, but what I can say is: After taking Lean for just a week, I added two reps for both pull-ups and bench press, and that's after being stuck on a plateau for bench for the past few weeks. I was also massively more energetic during my initial warmup. I also took Stim-Free before a morning jog. I noticed a clear tingling sensation in my face and chest, which is one of the potential side effects associated with greater bloodflow. I'm not a very good runner and usually get lactic acid pain pretty quickly, but during this run, there was no lactic acid at all, which is one of the main benefits that Stim-Free claims. I felt purely limited by how hard I was breathing and not by muscle pain. One week in and I'm already a clear five stars. I'll check back in once I have evidence of long term gains.
A**I
Why my skin became irritated and started burning After drinking?
The drink is slightly sour, but after drinking it my skin became irritated and started burning. This reaction was uncomfortable for me. Has anyone else experienced this?
Trustpilot
1 month ago
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