ProSupps Dr. Jekyll Signature – Stimulant-Free Pre-Workout

Epic Pumps. Clean Focus. No Stims.

Crush your workout—no caffeine required.
Dr. Jekyll Signature is your go-to for serious training without the buzz. Designed for lifters who train at night, are stim-sensitive, or want to stack with a high-stim pre, this formula brings the intensity without the jitters. Expect sharp mental focus, muscle-flooding pumps, and performance-driven endurance—minus the crash.

Why You’ll Love It

• Stimulant-Free – Train hard, sleep easy. Perfect for late sessions or caffeine-free stacks

• Pump Power – Nitrosigine® and NooLVL™ for next-level blood flow and vascularity

• Strength & Endurance Support – Creatine HCl and Beta-Alanine to fuel your drive

• Focus + Adaptogens – Includes L-Tyrosine, Choline, and KSM-66® Ashwagandha for mental clarity and mood balance

• Thermo Support – CaloriBurn GP™ adds a natural thermogenic push

• Gluten-Free & Informed Choice Certified – Clean, tested, and trusted

Sprint Fit Approved

No stims, no worries—Dr. Jekyll Signature is a smart, effective choice for anyone who wants full-focus performance with zero compromise. Clean ingredients, fully disclosed formula, and fast NZ delivery—because training hard shouldn’t come at the cost of recovery.

How to Use

Mix 1 scoop with 200–300ml of cold water and take 15–30 minutes before your session. Want to stack? Pair with your favourite stim-based pre for the ultimate performance combo.

Train sharp. Go hard. Stay balanced.
Get ProSupps Dr. Jekyll Signature—available now at Sprint Fit.

Container Size: 294G
Serving Size: 1 Scoop (8.8g)
Servings Per Container: 30

We use NZ Couriers as our courier service using an international service. NZ Couriers provides our customers with fast and reliable delivery to destinations across their comprehensive AUS network. 

Standard orders over $60.00 receive free* shipping nationwide, excluding WA, NT, TAS.
Standard delivery starts from $12.90 per shipment for orders under $60.00 
Signature Required $14.90 per shipment. Please ensure you do not have the 'authority to leave' authorization set up at your address with NZ Couriers should you wish to use this service.
If you don't want NZ Couriers to leave your parcel unattended, please select the signature required option. This is especially recommended for high value orders. Neither NZ Couriers nor Sprint Fit are liable for parcels that are stolen, damaged or lost after an item has been delivered.

Final pick up each day is at 3.45pm Monday to Friday. 

*Excludes public holidays and weekends as courier is closed

Click here to view the full Shipping Details and Returns Policy.