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Mr. White Formulations Mr. White Yayo Pre Workout

Mr. White Formulations 40/20 servings

from £42.90

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Mr. White – YAYO Edition


Extreme Pre-Workout

Mr. White – YAYO Edition is a high-stimulant pre-workout supplement in powder form, developed for experienced users familiar with complex and intensive formulations.
The product features a fully disclosed ingredient profile with no proprietary blends.

Each container provides 40 servings at 1 scoop or 20 servings at 2 scoops.

Ingredients & Functional Overview


L-Citrulline


A non-essential amino acid involved in nitric oxide metabolism and the urea cycle. Commonly included in pre-workout formulations due to its role in amino acid conversion processes.

Beta-Alanine


A beta-amino acid that serves as a precursor to carnosine, a compound naturally present in skeletal muscle tissue.

L-Taurine


An amino sulfonic acid found in high concentrations in muscle and nervous tissue. Taurine participates in electrolyte balance and cellular hydration processes.

L-Tyrosine


A conditionally essential amino acid and precursor to catecholamines such as dopamine and norepinephrine. Frequently used in formulations designed around mental focus components.

Dimethylethanolamine (DMAE Bitartrate)


A choline-related compound commonly included in nootropic and pre-workout products. DMAE is structurally linked to acetylcholine pathways.

Caffeine Anhydrous


A concentrated, fast-acting form of caffeine used as a central nervous system stimulant. Included as part of the primary stimulant matrix.

Theobromine


A naturally occurring methylxanthine structurally similar to caffeine, commonly sourced from cocoa. Often used alongside caffeine to diversify stimulant profiles.

Beta-Phenylethylamine HCl


A phenethylamine derivative structurally related to endogenous neurotransmitters. Frequently found in advanced stimulant blends.

Juglans Regia Extract


A botanical extract derived from walnut sources. Included as part of the product’s plant-based component system.

N-Phenethyldimethylamine Citrate (Eria Jarensis)


A plant-derived phenethylamine compound commonly used in high-stim pre-workout formulations.

Synephrine HCl


A protoalkaloid typically sourced from bitter orange. Often used in stimulant-based supplement profiles.

Gamma-Aminobutyric Acid (GABA)


An inhibitory neurotransmitter naturally present in the human nervous system. Included in small quantities as part of the neuro-active matrix.

Alpha-Yohimbine (Rauwolscine 90%)


An alkaloid extracted from Rauwolfia species. Present in low dosages and typically reserved for advanced stimulant formulations.

Other Ingredients



  • Malic Acid

  • Citric Acid

  • Natural and Artificial Flavours

  • Sucralose

  • Acesulfame Potassium

  • Stevia Rebaudiana


Suggested Use


Mix 1 scoop with water to assess individual tolerance.
Advanced users may use 2 scoops mixed with water.
Consume prior to training.

Important Information



  • Intended for experienced users only

  • Contains high levels of stimulants

  • Not recommended for children, pregnant or breastfeeding women

  • Do not combine with other stimulant-containing products


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Mr. White YAYO is a high-stimulant pre-workout powder developed by Mr. White Formulations for experienced users familiar with complex and intensive supplement formulations. Each container provides 40 servings at 1 scoop or 20 servings at 2 scoops.

Mr. White YAYO contains a fully disclosed blend including L-Citrulline, Beta-Alanine, L-Taurine, L-Tyrosine, DMAE Bitartrate, and Caffeine Anhydrous. The formula is designed around performance, energy, and cognitive focus support.

The formula is structured to support muscular endurance through Beta-Alanine, nitric oxide production through L-Citrulline, mental focus via L-Tyrosine and DMAE, and intense energy through caffeine and additional stimulant compounds.

Mr. White YAYO offers flexible dosing: 1 scoop for standard use (40 servings per tub) or 2 scoops for a more intense effect (20 servings per tub). New users should always start with 1 scoop to assess tolerance.

Mix 1 scoop with water to assess individual tolerance before training. Experienced users may use 2 scoops. Consume prior to your training session and do not exceed the recommended serving.

Mr. White YAYO is intended for experienced users only. It contains high levels of stimulants and is not recommended for children, pregnant or breastfeeding women, or individuals sensitive to stimulants.

No. Mr. White YAYO is a high-stimulant formula specifically developed for experienced supplementation users. Beginners should start with a milder pre-workout product before progressing to this level of potency.

Mr. White YAYO should not be combined with other stimulant-containing products. It can be used alongside non-stimulant supplements such as creatine, electrolytes, or protein to support overall training nutrition.

Mr. White YAYO contains high levels of stimulants and should only be used by experienced adults. Do not combine with alcohol or medications. Consult a healthcare professional before use if you have any underlying health conditions.

Mr. White YAYO Pre-Workout is available through Cross The Limits, an authorised UK retailer. Orders placed before 4pm are dispatched the same day, with free UK shipping on orders over £89.