Stim (74)

Smash Pre-Workout Gummies are a chewable pre-workout with 200 mg of caffeine, 1,000 mg of L-citrulline, 1,000 mg of beta-alanine, 400 mg of L-tyrosine and 100 mg of L-theanine in every 4-gummy serving. Each bottle has 25 servings. 200 mg caffeine per 4-gummy serving 1,000 mg L-citrulline and 1,000 mg beta-alanine per serving 0 g sugar, 40 calories per serving 25 servings (100 gummies) per bottle Flavors: Cherry Bomb and Sour Apple Made without gluten, wheat, yeast, milk, lactose or soy, per the label

HWMF from Axe & Sledge is a high-stimulant pre-workout with flexible 1- or 2-scoop dosing. A full 2-scoop serving delivers 400 mg caffeine from caffeine anhydrous and zümXR® extended-release caffeine, plus 6 g L-citrulline, 2.5 g betaine anhydrous, 2 g L-taurine, 600 mg alpha-GPC, 100 mg CognatiQ®, Citrus aurantium (synephrine) and yohimbine. It has no beta-alanine. New users should start with 1 scoop. 400 mg caffeine per 2 scoops (200 mg per scoop), including extended-release zümXR® 6 g L-citrulline and 2.5 g betaine anhydrous for pumps and power output* 600 mg alpha-GPC and 100 mg CognatiQ® coffee fruit extract for focus* 2 g L-taurine plus sodium and potassium electrolytes Beta-alanine free; 20 full servings (40 single scoops) (Blue Colada flavor pictured)

Free Bucked Up Hat: add a Bucked Up Hat to your cart with this pre-workout and it rings up $0 at checkout (1 per order; hat color is random). Woke AF X is the limited Anniversary X high-stim upgrade: 333 mg caffeine with dendrobium and synephrine, plus N.O.V8 and 1,250 mg betaine anhydrous. For stimulant-tolerant adults only. 30 servings. 333 mg caffeine plus dendrobium and synephrine 6 g citrulline malate 2:1 and 3.2 g beta-alanine 1,250 mg betaine anhydrous and N.O.V8 30 servings; limited Anniversary X release

Free Bucked Up Hat: add a Bucked Up Hat to your cart with this pre-workout and it rings up $0 at checkout (1 per order; hat color is random). Bucked Up X is the limited Anniversary X upgrade of Bucked Up pre-workout: 200 mg caffeine, 6 g citrulline malate, 2 g beta-alanine, plus N.O.V8 and 1,250 mg betaine anhydrous. 30 servings. Limited edition. 200 mg caffeine (standard stim) 6 g citrulline malate 2:1 2 g beta-alanine 1,250 mg betaine anhydrous and N.O.V8 30 servings; limited Anniversary X release

5150 Gladiator Edition is a limited-edition, high-stimulant version of 5% Nutrition's 5150 pre-workout, with a 500 mg caffeine complex plus a large pump and focus blend in every scoop. 8,000 mg L-citrulline, 2,000 mg HydroPrime® glycerol and 1,500 mg agmatine sulfate 3,200 mg beta-alanine and 2,000 mg L-taurine Focus blend: 1,000 mg L-tyrosine, choline and alpha-GPC Stim-Crazy Caffeine Complex: 500 mg; 20 servings Serving size: 1 scoop (25 g); servings per container: 20 Flavors: Carnage Crush = Mango Peach; Violet Vengeance = Berry Bubblegum. How to use Mix 1 scoop with 6–8 oz of water and consume on an empty stomach 30 minutes before training. Do not exceed the recommended serving. To avoid sleeplessness, do not take within 4 hours of bedtime. See the Supplement Facts and Warnings tabs for full label details. (Carnage Crush flavor pictured)

VOID™ is AfterDark's fully loaded, high-stim pre-workout for experienced lifters who want intensity, pumps, focus and sustained energy. Each scoop delivers 7 g L-citrulline and 150 mg EndoFlo™ to support nitric oxide production and blood flow, 4 g beta-alanine to support muscular endurance, 1 g taurine and a 400 mg delayed-release caffeine matrix from caffeine anhydrous and natural caffeine (coffee and green tea), plus a nootropic stack of tyrosine, a choline complex, acetyl L-carnitine and huperzine A for focus. High-stim pre-workout: 400 mg delayed-release caffeine matrix with 200 mg theobromine HCl, 150 mg panax ginseng, 100 mg Advantra Z® (bitter orange, 30% synephrine) and 3 mg alpha yohimbine (rauwolscine) Pumps and performance: 7 g L-citrulline, 150 mg EndoFlo™, 1 g taurine and 1.21 g glycogen complex with Cluster Dextrin™ 4 g beta-alanine to support muscular endurance (may cause a harmless tingling feeling) Focus: 1 g tyrosine, 500 mg choline complex (choline bitartrate, DMAE, alpha GPC, citicoline), 350 mg acetyl L-carnitine, huperzine A, uridine monophosphate, mucuna pruriens (98% L-dopa) and kanna Electrolytes (sodium, potassium, chloride), niacin and vitamin B12; made in the USA in a cGMP-certified facility and third-party tested (per AfterDark) 21 servings (470 g); flavors: Blue Madness, Purple Haze, Sour Watermelon Swirl

Alphamine is PEScience's powdered thermogenic pre-workout and energy drink mix. Each two-scoop serving combines 300 mg caffeine from caffeine anhydrous and Infinergy® dicaffeine malate with 200 mg L-theanine and 1,000 mg L-tyrosine for smooth energy and focus, plus a 3,000 mg TruCarnitine blend of L-carnitine L-tartrate and choline, ENERGIC® purslane and grains of paradise to support metabolism during training. Use it before workouts or on its own like an energy drink. 300 mg caffeine per 2-scoop serving (caffeine anhydrous + Infinergy® dicaffeine malate) 3,000 mg TruCarnitine blend: 2,000 mg L-carnitine L-tartrate + 1,000 mg choline bitartrate 1,000 mg L-tyrosine and 200 mg L-theanine for focus ENERGIC® purslane extract and grains of paradise seed extract 30 servings (60 scoops)

Prolific is PEScience's beta-alanine-free stimulant pre-workout, made with eight ingredients for energy, focus and pumps. A full two-scoop serving provides 6 g L-citrulline, 2.5 g betaine and 1.5 g taurine for pumps and performance, plus 320 mg caffeine from caffeine anhydrous and Infinergy® dicaffeine malate, balanced with 200 mg L-theanine, 250 mg Cognizin® citicoline and rhodiola for smooth energy and focus. No beta-alanine: no itch or tingle Per 2 scoops: 6 g L-citrulline, 2.5 g betaine anhydrous, 1.5 g taurine 320 mg caffeine per 2 scoops (160 mg per scoop) from caffeine anhydrous and Infinergy® dicaffeine malate 250 mg Cognizin® citicoline, 200 mg L-theanine and 100 mg rhodiola rosea extract for focus 40 scoops (20 full two-scoop servings)

Stim-Rush from Titan Nutrition is a high-stimulant pre-workout for intense energy and focus. Each scoop delivers 333 mg caffeine anhydrous, 40 mg synephrine HCl, 300 mg Alpha-GPC, dendrobium and L-theanine, along with 2.5 g betaine, 1 g agmatine sulfate, 500 mg taurine and Senactiv®. 333 mg caffeine anhydrous 300 mg Alpha-GPC and 100 mg L-theanine 2.5 g betaine anhydrous and 1 g agmatine sulfate 25 mg Senactiv® 30 servings, 0 calories (Cherry Lime flavor pictured)

ALLMAX Impact Igniter Xtreme 2.0 is a high-stimulant pre-workout with L-citrulline, beta-alanine, L-tyrosine and 200 mg+ caffeine per scoop. L-Citrulline: 4000 mg Pink Himalayan Sea Salt: 250 mg WATTS’UP®: 250 mg Serving size: 1 Scoop (14 g); servings per container: 30 See the Supplement Facts tab for full label details.

Outlift Amped is the high-stimulant version of Nutrex's clinically dosed Outlift pre-workout. Each scoop pairs a pump and strength complex of 6 g L-citrulline, 3.2 g beta-alanine and 2.5 g betaine with an energy and focus blend of 3 g L-tyrosine, 600 mg Alpha GPC, 350 mg caffeine anhydrous, TeaCrine®, CognatiQ® and dicaffeine malate, plus a hydration matrix, for energy, focus, pumps and performance in every session. Very strong stimulant pre-workout: 388 mg caffeine per scoop 6 g L-citrulline, 3.2 g beta-alanine and 2.5 g betaine anhydrous 3 g L-tyrosine, 600 mg Alpha GPC 50%, TeaCrine®, CognatiQ® coffee fruit extract and rauwolscine for energy and focus Hydration matrix with Aquamin®, pink Himalayan salt, potassium and magnesium; BioPerine® 22 servings; available here in Sucker Punch and Strawberry Watermelon

Intake from Axe & Sledge is an all-in-one, high-stimulant pre-workout. A full 2-scoop serving delivers 300 mg caffeine from caffeine anhydrous and zümXR® extended-release caffeine, plus 100 mg theobromine, 8 g L-citrulline, 3.2 g beta-alanine, 2.5 g betaine anhydrous, 2 g L-tyrosine, 250 mg CDP-choline, ElevATP® and Senactiv®. New users should start with 1 scoop. 300 mg caffeine per 2 scoops (150 mg per scoop), including extended-release zümXR® 8 g L-citrulline and 2.5 g betaine anhydrous for pumps and power output* 3.2 g beta-alanine 2 g L-tyrosine and 250 mg CDP-choline for focus* 150 mg ElevATP® and 50 mg Senactiv®; 20 full servings (40 single scoops) (Fruit Kaboom flavor pictured)