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CILTEP® + Smart Caffeine® Combination Pack

Rated 4.6 out of 5
74 Reviews
Rated 4.6 out of 5
74 Reviews

CILTEP® (60 Capsules) is the world's first and only official CILTEP stack formulated by Abelard Lindsay. CILTEP is the healthy, natural way to stay focused, alert and motivated for hours. Learn more

Smart Caffeine (60 Capsules) eliminates the jitters or anxiety normally associated with caffeine use. By combining caffeine with L-theanine, the calming agent found in green tea, you're able to experience hours of focused energy. Learn more

The two Natural Stacks work extremely well in congruence with one another, but we recommend testing your tolerance with each first. 

Open Source

Most companies use "proprietary blends" so they don't have to tell you the amount of each ingredient in their formulas. At Natural Stacks we believe it's your right to know exactly what you're putting into your body. We proudly publish our innovative formulas and ingredient suppliers in an open source format.

Learn About Our Commitment To Transparency

Money Back Guarantee

If for whatever reason you're unsatisfied with your Natural Stacks products, you can return the product within 30 days for a full refund. We also provide actionable tips on our blog and newsletter for you to maximize your performance with our premium products.

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User Reviews

average rating 4.6 out of 5
Based on 74 reviews
  • 5 Stars
    57 Reviews
  • 4 Stars
    7 Reviews
  • 3 Stars
    6 Reviews
  • 2 Stars
    3 Reviews
  • 1 Star
    1 Review
86% of reviewers would recommend these products to a friend
Enhanced Concentration
Rated 4 out of 5
Increased Motivation
Rated 4 out of 5
Mood Elevation
Rated 4 out of 5
Increased Energy
Rated 4 out of 5
Improved Concentration
Rated 4 out of 5
74 Reviews
Review posted
Rated 5 out of 5

The best combo!

My favorite go to each day for focus and steady energy to conquer! Thanks!

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Enhanced Concentration
Rated 5 out of 5
Increased Motivation
Rated 5 out of 5
Mood Elevation
Rated 4 out of 5
Increased Energy
Rated 5 out of 5
Improved Concentration
Rated 5 out of 5
Was this helpful?
Review posted
Rated 5 out of 5

Curcumin

Since I have been taking Curcumin I have not taken my Celebrex. My orthopedic doctor recommended it to me and told me that after doing some research he buys his from Natural Stacks. That is when I ordered mine from you.

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Enhanced Concentration
Rated 3 out of 5
Increased Motivation
Rated 4 out of 5
Mood Elevation
Rated 4 out of 5
Increased Energy
Rated 4 out of 5
Improved Concentration
Rated 4 out of 5
Was this helpful?
Review posted
Rated 5 out of 5

Fabulous

I have scored 3As in my previous semester after eating your supplements! My friends were dubious about it when I bought the supplements but after seeing my grades they decided to purchase it! 10/10 ??

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Enhanced Concentration
Rated 5 out of 5
Increased Motivation
Rated 5 out of 5
Mood Elevation
Rated 3 out of 5
Increased Energy
Rated 5 out of 5
Improved Concentration
Rated 5 out of 5
Was this helpful?
Review posted
Rated 5 out of 5

This is a great combo

These two will make you work all day

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Enhanced Concentration
Rated 5 out of 5
Increased Motivation
Rated 5 out of 5
Mood Elevation
Rated 5 out of 5
Increased Energy
Rated 5 out of 5
Improved Concentration
Rated 5 out of 5
Was this helpful?
Review posted
Rated 5 out of 5

Smart Caffeine

I took 2 at 8am, then 2 more at 2:30pm. Both times I had good focus and got the tasks done. BUT by 8pm, my heart had gone into Atrial Fibrillation. I am a heart patient. So Smart Caffeine isn’t for me. I’m truly done with it. So far no problems with Ciltep.

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

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