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Nothing light.
ROOKComparison
JYM

Pre JYM

8.7 gof actives per scoop

  • Citrulline≈4 g
  • Beta-alanine2 g
  • Taurine1 g
  • Tyrosine1.5 g
  • Caffeine300 mg
  • Per scoop€1.49
Compare with another pre

Against ROOK

×2.4more actives in ROOK

Citrulline

≈4 g 10 g

Beta-alanine

2 g 6 g

Taurine

1 g 3 g

Tyrosine

1.5 g 2 g

Caffeine (max 200 mg)

300 mg 200 mg

Price per kilo of actives

JYM 171€
ROOK 106€ Cheapest
Europe's most dosedNew
ROOK Pre-Workout
21.2 g of actives per scoop ×2.4 vs JYM
  • 10 gCitrulline
  • 6 gBeta-ala.
  • 3 gTaurine
  • 2 gTyrosine
  • 200 mgCaffeine

Nothing light. Nothing hidden.

Order€2.25 per scoop

Every pre-workout

Labels and sources

One serving of Pre JYM (1 scoop, 25 g) contains 4 g L-citrulline, 2 g beta-alanine, 1 g taurine, 1.5 g tyrosine and 300 mg caffeine. €44.61 for 30 servings.

Per servingPre JYM
Serving1 scoop, 25 g
L-citrulline≈ 4 g
Beta-alanine2 g
Taurine1 g
Tyrosine1.5 g
Caffeine300 mg
Total of the 5 actives8.7 g
Servings per tub30
Recorded price€44.61
converted from $49.99 (ECB rate of 09/10/2026)
Sourcejymsupplementscience.com · label read · sold in US dollars
Checked onND

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€44,90See the product