Caffeine/L-Theanine Capsules

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  • Caffeine/L-Theanine  Capsules
  • Caffeine/L-Theanine  Capsules


Hard Rhino Caffeine L-Theanine capsules contain pure form powder with no unnecessary excipients or fillers packaged inside a vegeterian cellulose capsule.

The synergistic effects of Caffeine and L-Theanine may help with energy and alertness throughout the day. This combination can help support a productive day by keeping you focused on the task at hand.

Directions & Allergens

Suggested Use: 

Healthy adults may take one serving (1 capsule) daily as a dietary supplement for energy and endurance. DO NOT consume more than 2 servings in one day.

Other Ingredients:

Rice Flour (excipient), Vegetarian Cellulose (capsules), Magnesium Stearate (excipient), Silicon Dioxide (excipient).


This is a NON-GMO ingredient manufactured using organic starting ingredients.


This product contains no Soy, Dairy, Dairy byproducts, Eggs, Fish, Shellfish, Wheat, Gluten, Tree Nuts, or Sesame Seeds.


Store in a cool, dry place. Re-seal bottle immediately after use to preserve freshness.

Statements & Warnings

† These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.

Keep out of the reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s). Always consult with a qualified health physician before taking any new dietary supplement.

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1 Review

  • 5
    Synergy is a wonderful thing!

    Posted by Germain Giner on 10th Jul 2014

    Caffeine and L-Theanine, great combination! Stay alert without a tremor, without that upped startle reflex and blood pressure.

    I keep a few capsules in my tool bag, some in the car would not be amiss for those long drives, either.

    The proportions in the HardRhino product hit the spot for me, really can't say enough about this one--

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