Pre JYM is the original caffeinated pre-workout from JYM Supplement Science. Check the full name when shopping: Pre JYM Plus, Pre JYM Stim-Free and Pre JYM X have separate entries in the brand’s label library. Their ingredient amounts should not be substituted for the original formula.
What the original Pre JYM label contains
The Blueberry Pineapple packaging panel linked from the official product page lists one 24 g scoop with:
- 300 mg caffeine anhydrous
- 6 g citrulline malate
- 6 g BCAAs: 3 g leucine, 1.5 g isoleucine and 1.5 g valine
- 2 g creatine HCl and 2 g beta-alanine
- 1.5 g betaine, 1.5 g L-tyrosine and 1 g taurine
- 500 mg beetroot extract and 150 mg alpha-GPC
- 50 mcg huperzine A and 5 mg black pepper extract
Flavor and packaging matter. The brand’s library also supplies an Orange Mango label with a 26 g scoop. Use the gram weight on your own container, rather than treating every Pre JYM scoop as interchangeable.
How to interpret the formula
Citrulline malate includes the malate component; its 6 g figure is not automatically 6 g of pure L-citrulline. Likewise, creatine HCl and creatine monohydrate are different forms. A gram-for-gram comparison should preserve those names instead of calling them identical.
NIH’s exercise-supplement overview explains that creatine monohydrate is the most studied creatine form, while beta-alanine research generally concerns repeated supplementation. Tingling after a scoop does not measure workout improvement. Evidence for individual ingredients also cannot establish the performance or safety of every finished mixture.
Directions and comparison checklist
The pictured Pre JYM label specifies mixing with 16–24 ounces of water, a maximum of one serving after assessing tolerance, and avoiding use within six hours of bedtime. It also warns against combining with other caffeinated products. Read the full restrictions on your tub.
For a buying decision, ask whether you want caffeine and creatine in the same product, whether the serving fits your training time, and what each correctly measured portion costs. Review the complete formula with a healthcare professional if you have a condition or take medication. This guide reports manufacturer documentation; it does not claim a taste test, guaranteed pump or crash-free experience.
Product pages and existing offers
These are affiliate links; we may earn a commission from qualifying purchases. Check current labels and checkout terms. Discounts, including any 20% offer or code SHAWTAYYYY7, are subject to eligibility and are not guaranteed.
The larger sample-kit campaign is distinct from older three-sample or five-sample advertisements. Confirm current contents, shipping, customer eligibility and optional add-ons on its landing page.
Sources and review notes
Reviewed October 12, 2026. Original Pre JYM product page. Pre JYM Blueberry Pineapple facts panel. JYM label library. NIH exercise-supplement evidence review. FDA dietary supplement guidance. This is editorial guidance based on identified labels and sources, not a report of personal product testing. Product versions and offers can change.
