Best Gluten-Free Pre-Workout Powders of 2026

"I've consistently used Bulk Supplements' Beta Alanine and the quality has always been top-notch. The product arrives just as described, and I trust this brand for its purity and third-party testing. The press-to-seal packaging isn't perfect for daily use, so I transfer my powder to a jar for convenience. As for the effects, after a week of using 800mg doses, I experienced no uncomfortable tingling and saw clear improvements in my high-intensity workouts."

"I built my own pre-workout stack with Bulk Supplements Beta Alanine, Citrulline Malate, and Creatine Monohydrate. All three powders dissolve easily and deliver real results—I've seen better strength, stamina, and endurance even while cutting calories. No weird flavors or clumping, and I love being able to fully control my dosages compared to proprietary blends. Shipping is quick and reliable. Highly recommend for anyone wanting to customize their supplements."

"If you're after pure Beta Alanine at a great price, look no further. No unnecessary ingredients—just what you want. The powder looks like sugar, but the tingling sensation proves it's the real deal. I actually enjoy that feeling before a workout; it shows the product works! Only minor downside: mine didn't come with a scoop, but that's easy to work around."

"I've used L-Citrulline from different brands for years, but buying the pure bulk powder here is much more affordable and convenient. The taste is mild compared to other supplements I’ve tried, and the quality is consistently solid. I use it to boost vascularity, muscle endurance, and blood flow—it’s one of my favorite supplements for gym performance, bedroom health, and cardiovascular support."

"I take this L-Citrulline to make my own pre-workout blend, and it works exactly as I need. There's no taste, it dissolves fast, and I’ve had great experiences with this company’s other bulk supplements. I even notice fewer migraines, likely from its vasodilation effect."

"After adding this to my routine, I noticed a huge improvement in my muscle recovery and workout pump. It mixes easily, contains no fillers, and the price is unbeatable. Cleaning the zipper track on the bag fixed any sealing issues I had. I highly recommend it for anyone looking to enhance their workouts."

"I've found this beta-alanine super simple to mix into water or my preworkout, and it works fast—I feel the tingle almost immediately. There's hardly any taste, and the cost is unbeatable for the amount you get."

"After using this for about three months, I've noticed long-lasting strength and better performance. I like that it blends well with other supplements, and I appreciate that it's real beta-alanine, not full of chemicals. The price is right, and I don't have to spend a fortune for a good supply."

"Every time I use this, I get that pre-workout tingling feeling, which lets me know it's working. I also appreciate being able to adjust my dose easily based on my size and workout needs."

"After taking the recommended dose, I felt an incredible surge of energy—like I could lift anything in sight. The product definitely gives you a huge boost, but I realized the listed amount was more than I needed, so I'm going to stick to a lower dose from now on."

"It really helps with muscle recovery and delivers a noticeable pump during workouts. It took a few weeks to feel the effects, but it does exactly what it's designed to do."

"Honestly, this is a solid value supplement, but I didn't notice any major changes or effects while using it."

"I've noticed a significant improvement in my endurance and muscle pump since I started using this L-Citrulline powder. It blends seamlessly with my pre-workout and doesn't have any unwanted additives. The resealable bag helps keep everything fresh, and it's a great value for the amount you get. This has become one of my essential supplements."

"When I switched to buying my pre-workout ingredients in bulk—including L-Citrulline—I found I could save a ton of money and have complete control over my supplements. The difference in my workouts is obvious: more energy, more power, and faster results. While the taste isn't great, it's worth it for the quality and flexibility. No more overpriced pre-mixed blends for me!"

"Adding this supplement to my routine has made my workouts noticeably more effective, especially in terms of muscle endurance and reduced fatigue. The powder dissolves easily, though I do recommend shaking your drink a bit. I don't mind the taste because the performance benefits are so clear—I can power through tough rides and runs without needing to stop as often."

"As someone who is extremely sensitive to supplements, I can confidently say that agmatine sulfate delivers better pumps than my usual arginine/citrulline/ornithine stack. Not only does it outperform Viagra for sexual enhancement, but it also provides remarkable pain relief for my back and knees, lasting up to ten hours. I did experience some headaches and digestive effects at first, but reducing the dose helped. The product’s effects seem to increase with continued use."

"I regularly use this with my kratom, and it notably improves both pain relief and tolerance. Even on its own, it works well for pain, and the quality remains consistent with every order. I recommend starting with a small dose and working up, as higher amounts can cause gas. Overall, I’ve had a positive experience and plan to keep ordering from this company."

"Mixing this agmatine sulfate with my pre-workout has led to noticeable strength increases and better workouts. It kicks in fast, has no strange taste, and works well when stacked with other products. Occasionally, I get slight headaches, but nothing unmanageable. My only gripe is that the serving size per price could be better—so check other options for the best value."

"Since I started using this powder, my workouts have reached a new level—my vascularity and muscle fullness have noticeably improved. Although it doesn't dissolve perfectly, that's normal for this type of supplement. The results make it a valuable addition to my routine, and I definitely recommend it."

"In my experience, the pump is fantastic when I use a higher dosage with plenty of water and combine it with L-citrulline and L-arginine. I notice a clear difference in my muscle swelling compared to standard pre-workouts."

"Even though I'm not using it for lifting, this powder has supported my energy levels during fasting-mimicking diets. The bag is huge and lasts a long time, but it just won't dissolve no matter how long I let it sit."

"As a first-time buyer from BulkSupplements, I'm genuinely impressed. The product quality is top-notch, with no mysterious additives, and the packaging is straightforward without any unnecessary flair. It's great to have options for both bulk purchases and smaller trial sizes, and the price point is excellent. I noticed a positive effect from taking the supplement, though results may vary for others. The only minor downside is the resealable bag, which can be tricky to close. Overall, I'm switching my other supplements to this brand."

"I like making my own pre-workout mixes, and BulkSupplements' L-Citrulline makes it easy and affordable. Compared to L-Arginine, L-Citrulline really stands out and helps me push through my workouts with less fatigue and muscle soreness. The product arrived quickly and was packaged well. I'd recommend it to anyone wanting more control over their supplements."

"The effect of this supplement is definitely noticeable—I get a strong pump about 30–40 minutes after taking it, and it even seems to boost my libido and overall physical response. The tart, citrus flavor is manageable, but I wish the pump lasted longer during workouts. On non-workout days, I feel a unique tingling sensation in my muscles, so it clearly works for me."

"I rely on this powder to fuel my Ironman training rides, mixing it with Cytomax for a high-calorie, long-lasting energy source. It dissolves easily and the taste is fine even when concentrated. It's far more convenient than gels, though it can be a bit sticky when mixing. Overall, it's a great value for endurance athletes."

"I add this to my protein shakes with creatine before early-morning powerlifting sessions. It mixes effortlessly, has no noticeable flavor, and digests quickly, so I can train without feeling sick. For me, it’s the perfect way to get extra carbs in my routine—it fits my healthy lifestyle perfectly."

"When I make my own drink mixes, I include a small amount of this to improve mouthfeel without adding many calories. The packaging is sturdy and keeps the powder fresh, so I don’t worry about clumping or spoilage, even when buying in large quantities."

"I've tried a lot of pre-workouts and this one stands out for me. It delivers a hard, fast energy boost and keeps me laser-focused throughout my workout. I use it especially for heavy lifting days and love the pump it gives. I also appreciate that there’s no crash afterward. Just be careful with cardio—I learned the hard way that you need a time buffer to avoid nausea. Overall, great for those who like an intense pre-workout experience."

"For me, this pre-workout is a game changer for lifting and endurance. I get exactly the push I need to hit the gym and keep going, even after my session is over. It keeps me alert and pumped, which is perfect for my routine."

"I was looking for a pre-workout with properly dosed ingredients and this fits the bill. The flavor is more like a green jolly rancher than truly sour, but it mixes easily in water. However, the Alpha GPC in this formula really impacts my sleep for a couple of days, so it’s not ideal if you’re sensitive to choline supplements. Otherwise, I’d recommend it for the quality and dosing."