300 mg caffeine
Creatine included
BCAAs included
Huperzine A
Lower caffeine
More beta-alanine
More betaine
Caffeine + theanine
Pre JYM
Bulk
Servings
30
30
Caffeine
300 mg
200 mg
Citrulline malate
6 g
8 g, 2:1
Beta-alanine
2 g
4 g
Betaine
1.5 g
2.5 g
Creatine
2 g creatine HCl
None
BCAAs
6 g
None
Beet-root extract
500 mg
None
Alpha-GPC
150 mg
300 mg
Huperzine A
50 mcg
None
L-theanine
None listed
200 mg
Energy and Focus
Pre JYM uses 300 milligrams of caffeine with alpha-GPC and huperzine A. It is the better fit when you deliberately want more stimulation.
Bulk uses 200 milligrams of caffeine with 200 milligrams of theanine, 1 gram of tyrosine and 300 milligrams of alpha-GPC. It is easier to repeat across a normal training week.
Pumps and Endurance
Bulk wins the disclosed core-performance comparison. It provides more citrulline malate, twice the beta-alanine and one extra gram of betaine.
Pre JYM adds beet-root extract, but more of its scoop is allocated to creatine, BCAAs and the all-in-one formula.
Creatine and BCAAs
Pre JYM includes 2 grams of creatine HCl and 6 grams of BCAAs.
That is convenient when one scoop is meant to cover several supplement categories. It may be redundant if you already take creatine and consistently reach daily protein targets.
Huperzine A and Daily Use
Pre JYM contains 50 micrograms of huperzine A. Bulk does not.
Some users deliberately want huperzine A. Others prefer not to take it every training day. Present that as a preference rather than a universal advantage.
Price and Value
Both current tubs list 30 servings.
Final Verdict
Bulk is the better default because its stimulant level is easier to repeat and its core pre-workout dosing is stronger.
Pre JYM is the better choice when you want 300 milligrams of caffeine and specifically value built-in creatine, BCAAs and huperzine A.