Product Description
Most pre-workouts hit you like a sledgehammer — skin tingling, heart racing, then a crash that tanks the rest of your day. You've been there. Here's what most athletes don't realize: the best pre-workout isn't about the biggest caffeine jolt. It's about giving your body the right tools to perform smarter, harder, and cleaner — without the side effects that follow you off the field.
Thorne Advanced Pre-Workout is the exact formula trusted by athletes on over 100 professional sports teams who need real, verifiable performance without a dirty label.
Clean Energy Without the Crash 200mg of natural caffeine from coffee beans is paired with L-Theanine — an amino acid that smooths out the stimulant edge — so you get sharp, sustained focus without the jitters, the tingling skin, or the afternoon collapse that plagues most pre-workouts.
The Pump and Endurance Stack That Actually Works 5g of L-Citrulline opens up your blood vessels to flood muscles with oxygen and nutrients, while 3.2g of CarnoSyn® Beta-Alanine — the compound that buffers the acid buildup that causes that burning, stop-you-in-your-tracks sensation — lets you push harder before fatigue forces you to back off.
Mind-Muscle Connection 600mg of Alpha GPC supports production of the brain chemical that controls muscle contractions and mental focus, so your head is as locked in as your legs.
The caffeine and L-Theanine combination is one of the most well-researched stacks in sports nutrition. Caffeine sharpens focus and delays fatigue; L-Theanine keeps you calm and dialed in without the chaos. L-Citrulline converts to arginine in your bloodstream, boosting blood flow and delaying the point where lactic acid wins. B vitamins — B6 and B12 — round out the formula by supporting the energy pathways your cells depend on during hard efforts.
Mix: Combine 2 scoops with at least 12 oz of water or your preferred beverage. Timing: Drink 15–30 minutes before your workout or race. Pro Tip: First time using it? Start with 1 scoop to gauge how your body responds, then work up to the full 2-scoop dose for maximum output.
Thorne is trusted by over 100 professional sports teams and serves as a proud partner of U.S. National Teams. NSF Certified for Sport means every batch is tested against nearly 300 banned substances — so you can take it before competition and never think twice.
This isn't just another pre-workout. This is the clean, clinically dosed formula built for athletes who demand performance they can actually trust.
- Gluten free
- Sport Tested: NSF Certified for Sport®
- 0g
- 0g
- 0g
- 0mg
- 2g
- 0g
Supplement Facts
20 Servings / Rainbow Sherbet
Serving Size: Two Scoops
Serving Per Container: 24
| Amount Per Serving | ||
|---|---|---|
| Calories | 15 | |
| % Daily Value* | ||
| Total Fat 0g | 0% | |
| Saturated Fat 0g | 0% | |
| Trans Fat 0g | ** | |
| Cholesterol 0mg | 0% | |
| Sodium 0mg | 0% | |
| Total Carbohydrate 2g | 1% | |
| Dietary Fiber 0g | 0% | |
| Sugars 0g | ** | |
| Protein 0g | 0% | |
| Caffeine 0mg | ** | |
| Peak02® Proprietary Blend 1000mg | ** | |
| Caterpillar Mushroom (Cordyceps militaris), Reishi Mushroom (Ganoderma lucidum), King Trumpet (Pleurotus eryngii), Shiitake Mushroom (Lentinula edodes), Lion's Mane Muchroom (Hericium erinaceus), Turkey Tail Mushroom (Trametes versicolor) | ** | |
| Alpha GPC (L-alpha-Glycerylphosphorylcholine) 600mg | ** | |
| Peak ATP® (Adenosine 5-Triphosphate Disodium) 450mg | ** | |
| Guayusa extract (leaf) (Ilex guayusa) 350mg | ** | |
| Mango extract (leaf) (Mangifera indica) 140mg | ** | |
| Quercetin Phytosome (Sophora japonica extract (flower)/Phospholipid complex from Sunflower) 35mg | ** | |
| Calories 15 | ** | |
| Total Carbohydrate 3g | ** | |
| Vitamin B6 (as Pyridoxal 5'-Phosphate) 5mg | ** | |
| Vitamin B12 (as Methylcobalamin) 100mcg | ** | |
| Sodium 15mg | ** | |
| L-Citrulline 5g | ** | |
| CarnoSyn® Beta-Alanine 3.2g | ** | |
| Alpha GPC (L-alpha-Glycerylphosphorylcholine) 600mg | ** | |
| Caffeine (from Coffee Bean) 200mg | ** | |
| L-Theanine 200mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
Always Happy Promise: Don't like a product? Tell us within 30 days of receipt and we'll make it right and make you happy. Here at The Feed, we want you to love your experience and the sports nutrition products you purchase. If, for any reason, you are not satisfied with your nutrition specific purchase, tell us.
We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
Thorne Advanced Pre-Workout FAQ's
Everything you need to know before getting started.
Take it 15–30 minutes before your training session or race. Mix 2 scoops with at least 12 oz of water so the ingredients have time to absorb and kick in before your first effort.
No jitters — the 200mg of natural caffeine is paired with 200mg of L-Theanine, which calms the stimulant edge without blunting the energy. You may notice a mild tingling sensation from the Beta-Alanine, which is completely normal and harmless — it's just the compound doing its job.
Beta-Alanine increases carnosine levels in your muscles, which acts like a buffer against the acid buildup that causes that burning, slow-you-down sensation during hard intervals. More carnosine means you can sustain high intensity longer before fatigue forces you to back off.
Alpha GPC supports your brain's production of acetylcholine — the neurotransmitter that drives muscle contractions and mental focus. In plain terms, it sharpens the connection between your brain and your body so you stay dialed in when the effort gets hard.
Advanced Pre-Workout uses a more traditional performance stack — L-Citrulline, Beta-Alanine, Alpha GPC, and coffee-derived caffeine — optimized for power output, endurance, and focus. Pre-Workout Elite leans on adaptogenic mushrooms and Amazon-sourced guayusa extract for a lower-caffeine, more natural energy approach. Advanced is the better pick if you want clinically dosed, higher-intensity performance support.