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Cheapest zümXR (Delayed-Release Caffeine) on iHerb

Ranked by real cost per mg of zümXR (Delayed-Release Caffeine) — cheapest value first.

Prices updated Jul 25, 2026 · 9 products · Prices in USD

The priciest option here costs about 2.1× more per mg of zümXR (Delayed-Release Caffeine) than the best-value pick Rule One Proteins. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per mg
1
Rule One Proteins, preLIFT, Pre-Workout, Orange Pineapple, 14.8 oz (420 g)
Rule One Proteins, preLIFT, Pre-Workout, Orange Pineapple, 14.8 oz (420 g)
Rule One Proteins
30 mg3024.520.027View on iHerb →
2
Rule One Proteins, preLIFT, Pre-Workout, Blue Raspberry, 15.9 oz (450 g)
Rule One Proteins, preLIFT, Pre-Workout, Blue Raspberry, 15.9 oz (450 g)
Rule One Proteins
30 mg3032.690.036View on iHerb →
3
Rule One Proteins, preLIFT, Pre-Workout, Black Cherry Limeade, 15.3 oz (435 g)
Rule One Proteins, preLIFT, Pre-Workout, Black Cherry Limeade, 15.3 oz (435 g)
Rule One Proteins
30 mg3032.690.036View on iHerb →
4
Rule One Proteins, preLIFT, Pre-Workout, Wild Grape, 15.3 oz (435 g)
Rule One Proteins, preLIFT, Pre-Workout, Wild Grape, 15.3 oz (435 g)
Rule One Proteins
30 mg3032.690.036View on iHerb →
5
RYSE, Pre-Workout, Godzilla, Strawberry Kiwi, 1.6 lbs (748 g)
RYSE, Pre-Workout, Godzilla, Strawberry Kiwi, 1.6 lbs (748 g)
RYSE
25 mg4056.990.057View on iHerb →
6
RYSE, Godzilla, Pre-Workout, Monsterberry Lime, 1.74 lbs (776 g)
RYSE, Godzilla, Pre-Workout, Monsterberry Lime, 1.74 lbs (776 g)
RYSE
25 mg4056.990.057View on iHerb →
7
RYSE, Godzilla, Pre-Workout, Passion Pineapple, 1.6 lbs (714 g)
RYSE, Godzilla, Pre-Workout, Passion Pineapple, 1.6 lbs (714 g)
RYSE
25 mg4056.990.057View on iHerb →
8
RYSE, Godzilla, Pre-Workout, Blue Raspberry, 1.7 lbs (772 g)
RYSE, Godzilla, Pre-Workout, Blue Raspberry, 1.7 lbs (772 g)
RYSE
25 mg4056.990.057View on iHerb →
9
RYSE, Pre-Workout, Godzilla, Blackberry Lemonade, 1.7 lbs (764 g)
RYSE, Pre-Workout, Godzilla, Blackberry Lemonade, 1.7 lbs (764 g)
RYSE
25 mg4056.990.057View on iHerb →

How we rank zümXR (Delayed-Release Caffeine)

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.