Jekyll & Hyde Advanced Stack






Category: Other Products
This is the advanced stack. Built for athletes who've outgrown the basics.
Dr. Jekyll Nightmare delivers stim-free precision—clean focus, powerful pumps, and total control, with zero caffeine standing in the way. Mr. Hyde Nightmare delivers the opposite extreme—300mg of caffeine, relentless drive, and performance built for the athlete who trains through excessive physical and mental stress.
Neither one holds back. Together, neither one competes.
Jekyll's L-Citrulline and Betaine Anhydrous drive nutrient delivery and pumps. Hyde's electrolytes and nootropics keep you locked in through the crash points other pre-workouts can't touch. Stack them and you get full-spectrum coverage—precision and power, running at the same time, in the same session.
Control meets chaos. Nightmare meets Nightmare.
Fully disclosed formulas. Clinically dosed. Banned substance tested.
Run Jekyll alone for stim-free training days. Run Hyde alone when you need to dominate. Stack both when the session demands everything you've got.
This is what Master Both looks like at the highest level.
Before you pay
Check the method and total at checkout.
When it ships
Allow for processing time as well as the journey to you.
Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
View policyIf you need a refund
Keep your order number and contact the store to start.
Please contact us for the refund processing timeframe before returning an item.
View policyDelivery costs
Review the cost for your destination and chosen service.
Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
View policyReturning an item
Check the return conditions before sending anything back.
United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
View policy






