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Liquid IV
SPECIMEN #LIQUID-I
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EnergyLiquid IV

Energy Multiplier

Caffeine + L-theanine at 1:1 ratio is the most studied focus combo in nootropics research. Add hydration and you've got a smart energy drink. Just know you're paying $1.80/packet for what costs $0.05 in bulk ingredients.

7.0/10
VERY GOOD

Caffeine + L-theanine is the proven focus combo, plus hydration. Smart pairing. But 14 servings for $25+ means you're paying nearly $2 per packet for flavored caffeine water.

7 ingredientsPowder14 servings
We'd recommend this
Evidence
7.0
Dosing
7.0
Synergy
8.0
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Whenmorning or early afternoon

Caffeine. Don't use after 2pm.

Foodwith or without food

Dissolves in water.

SafetyAll clear

100mg caffeine. Don't stack with coffee or other stimulants.

ResearchStrong evidence

Caffeine + L-theanine synergy has multiple RCTs showing improved focus with reduced anxiety.

What We Like

  • Caffeine + L-theanine (1:1 ratio) is the most studied focus stack.
  • Electrolytes prevent caffeine-related dehydration.
  • 100mg caffeine is moderate (not overstimulating).
  • B-vitamins support energy metabolism.

Watch Out For

  • $1.80+ per packet for 14 servings.
  • Contains 8g sugar per packet.
  • You could make this yourself for 1/10th the price.
  • Only 14 servings per box.

Ingredient Breakdown

1 adequate5 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
Caffeine10.0

from Green Tea + Guayusa

100 mgUNDERDOSED
50%
100 mg

of 200mg

UNDERDOSED
50%
L-Theanine10.0
100 mgUNDERDOSED
50%
100 mg

of 200mg

UNDERDOSED
50%
Matcha8.0
200 mgUNDERDOSED
40%
200 mg

of 500mg

UNDERDOSED
40%
Sodium8.0
510 mgUNDERDOSED
15%
510 mg

of 3400mg

UNDERDOSED
15%
Potassium10.0
370 mgUNDERDOSED
11%
370 mg

of 3400mg

UNDERDOSED
11%
Vitamin C10.0
300 mgADEQUATE
60%
300 mg

of 500mg

ADEQUATE
60%
B-Complex

B3, B5, B6, B12

varies
varies
In our database (click to learn more) Not yet reviewed

Our Analysis

Best For

People wanting clean energy without coffee jitters.Those who like flavored hydration drinks.Afternoon slump fighters.

Skip This If

Caffeine-sensitive individuals.Budget-conscious buyers (DIY is 10x cheaper).

Time to Feel

15-30 minutes

Value

POOR

How to take: Cycle caffeine periodically to maintain sensitivity.

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