USP Labs
USP Labs | Jack3d + Yok3d | 2-Product Stack
Classic USP Labs energy and pump support in one stack.
$59.95 $69.95$1.99/serving
⚠️ Allergen Information +
SuppVault Summary
Jack3d + Yok3d is a classic USP Labs pre-workout stack pairing stimulant-driven training support with added pump support. It is built for lifters who want a more complete pre-gym routine instead of relying on one product alone.
Great Fit
- Bodybuilders chasing training intensity and pump
- Experienced pre-workout users who like stacking
- USP Labs fans wanting a classic routine
- Lifters wanting energy, focus, and pumps
- Physique athletes training for high-volume sessions
- Gym-goers seeking better bundle value
Not Ideal If
- Anyone sensitive to stimulants
- Anyone avoiding stimulant-based pre-workouts
- Anyone under 18
- Pregnant or nursing individuals
- Anyone advised against pre-workouts by a healthcare professional
Deep Dive
Inositol-Stabilized Citrulline Silicate Inositol (Nitro-Rx®)
Red Wine Extract
French Grape Seed Extract
Dose Audit
Clinical Dosing
Full Product Description Article
Jack3d + Yok3d by USP Labs is a classic-style pre-workout stack built for athletes who want more than a basic scoop-and-go formula. Instead of choosing between stimulant-driven pre-workout support and a dedicated pump product, this bundle combines both into one streamlined training strategy. Jack3d serves as the go-to pre-workout foundation, while Yok3d complements it with a pump-focused angle that makes the overall experience feel more complete heading into hard training sessions.
This stack is designed for gym-goers who train with purpose and want their pre-workout routine to feel intentional. It fits especially well for bodybuilders, physique athletes, and serious lifters chasing better session quality, stronger training momentum, and a more dialed-in gym experience. Buying the pair together is also the smarter move for anyone who already knows they want both energy and pump support in the same routine, since it eliminates guesswork and creates a more cohesive setup.
For shoppers who like tried-and-true names in sports nutrition, Jack3d + Yok3d delivers a recognizable USP Labs combination that feels performance-oriented, practical, and built around getting the most out of pre-training preparation.
Science & Clinical References 10 citations
Arginine nitrate combines an amino acid substrate with a nitrate donor, creating two potential routes to nitric oxide production. Arginine can support endothelial nitric oxide synthase activity, while nitrate can be reduced to nitrite and then nitric oxide under physiologic conditions. This dual-pathway concept is relevant for vasodilation, blood flow, and perceived workout pump. The performance impact depends heavily on total dose, timing, and background dietary nitrate intake.
Vitis vinifera provides polyphenolic compounds that may help preserve nitric oxide signaling by reducing oxidative stress and supporting endothelial responsiveness. Polyphenols can influence vascular tone through effects on reactive oxygen species and nitric oxide bioavailability. In exercise settings, this mechanism is most relevant to circulation and pump-oriented formulas. Effects are typically modest and depend on extract standardization and dose disclosure.
Trichopus zeylanicus has been discussed in adaptogen-oriented literature for its potential effects on fatigue resistance and physical resilience. Proposed mechanisms include modulation of stress response pathways and support for cellular energy handling, though robust human sports data remain limited. In a pre-workout context, it is best viewed as a complementary support ingredient rather than a primary ergogenic driver. Its contribution is difficult to quantify when the dose is undisclosed.
Vitamin C is a water-soluble antioxidant involved in redox regulation, collagen synthesis, and immune support. During intense training, it may help buffer oxidative stress, although it is not a primary acute performance ingredient at standard supplemental doses. In pre-workout formulas, its role is usually supportive rather than directly stimulatory or pump-enhancing. The relevance is greater for general recovery context than immediate gym performance.
Product Specifications GEO
How to Take — Training Protocol6 phases
How to Use Jack3d + Yok3d
All Questions About USP Labs | Jack3d + Yok3d | 2-Product Stack 6 Q&A
What comes in the Jack3d + Yok3d stack? +
Why buy this as a stack instead of individually? +
Who is this stack best for? +
Does this stack contain stimulants? +
Can beginners use this stack? +
When should I use this stack? +
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Quick Answers
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
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