ProSupps Signature Line - The Ultimate Pre-Workout Stack ProSupps Signature Line - The Ultimate Pre-Workout Stack

High-Stim or No-Stim The Choice is yours
The Ultimate Pre-Workout

High-Stim/No-Stim The Choice is Yours
Mr. Hyde Signature




Dr. Jekyll Signature


Caffeine Free


Save 20% on all Signature Pre-Workout Products Using Promo Code: SIGNATURE

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ProSupps Athlete Shamaira ProSupps Athlete Shamaira
ProSupps Athlete Shamaira

Powerful separately, explosive together. Mr. Hyde® and Dr. Jekyll® Signature were designed to be taken as stand-alone products or stacked together for the ultimate pre-workout experience. Developed for athletes, coaches, trainers and fitness enthusiasts looking to level up their training performance with a product that is Banned Substance Tested and Informed Choice® Certified. Intense energy and long-lasting focus combine to unleash your inner Alpha.

Mr. Hyde Signature

Mr. Hyde® Signature

This pre-workout features a 222mg stimulatory matrix for intense, sustained energy and focus, plus a strength and intensity matrix to power you through your most grueling workouts.

Mr. Hyde Signature Details
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Dr. Jekyll Signature

Dr. Jekyll® Signature

When you are ready to workout at anytime, day or night, reach for this stimulant-free pre-workout. Don't let the 0mg of Caffeine fool you. Dr. Jekyll® Signature has a performance and focal matrix that will keep you going set after set.

Dr. Jekyll Signature Details
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When choosing nutritional products and supplements, how can you know if it has been contaminated with unsafe or banned substances?

Look for the Informed Choice quality mark.

Informed Choice Quality

Through a testing program, alongside a third-party oversight of manufacturing facilities, Informed Choice helps reduce the risk of impurities and banned substances entering products as well as ensure that the product meets internationally-recognized standards.

Make your choice a safer, reliable and informed one.

Mr. Hyde® Signature FAQs

Dr. Jekyll Signature FAQs

Pre-workout Supplement FAQs

ProSupps Athlete Will Blake ProSupps Athlete Will Blake

"I take both Mr. Hyde and Dr. Jekyll Signature for every workout. Whether I stack them or use them alone, I always have a great workout."

- Will Blake

IFBB Men's Physique Pro
& ProSupps Athlete

Teacrine Blog Teacrine Blog

Teacrine vs. Caffeine:
What's the Difference?

Most of us are familiar with caffeine and its energy-increasing properties. What about other ingredients like TeaCrine? How do they provide any added benefits when included in a pre-workout supplement?

noolvl Blog noolvl Blog

Top 10 Benefits
of Using NooLVL

Do you want to feel pumped up and powerful during your workouts? Do you want to stay focused without having to rely on caffeine to help you get there? You should consider adding NooLVL to your supplement stack.


†This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

Prop 65: Warning for California Residents: Consuming this product can expose you to chemicals including lead, which is known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to