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CILTEP® + Smart Caffeine® Combination Pack

Rated 4.5 out of 5
71 Reviews
Rated 4.5 out of 5
71 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 4.5 out of 5
Based on 71 reviews
  • 5 Stars
    54 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 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
71 Reviews
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
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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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Review posted
Rated 5 out of 5

Amazing products! Keep it coming

Amazing products!

Keep it coming Natural Stacks!

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Review posted
Rated 5 out of 5

Excited to try it, but...

I'm excited to start using Ciltep - I've heard great stuff about it! The podcast is awesome as well - Tons of useful information! However, I think Pony Express is delivering my Ciltep, because it was shipped over 3 weeks ago and hasn't made it here yet. Maybe the postal workers should try out Smart Caffeine, so deliveries can move a little faster.

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Review posted
Rated 4 out of 5

Not bad, but I didnt had a "kick" from them

I am using Ciltep since a week, on the first 2-3 day didn't felt any difference (took 2-3), after the 4.th day I reduced the amount to 1 tablet in the morning. With that ration I can feel some improvement, but I wouldn't say that I am more focused. Its like I will get less tired during my workday, or lose my focus slower. I don't know if it needs some cumulation time, will try to increase the dosage back to 2 then 3 and will check how I feel myself. With the Smart Caffeine I can't feel any difference. I dont know if I am only tolerant to Caffeine, but I get more boost from an Oolong tea, than from the Smart Caffeine.If I increase the amount to 2 I will get only elevated heart rate and even some chest pain, but won't get less sleepy. When I sleep more, than I might feel some results, but well, it should work when I am tired, like a coffe, a black or Oolong tea. I bought Magtech as well as an "addition", and the funny thing that I was the most amazed from that product. I could really feel even after the first use, some significant change in my sleep efficiency, and perception. My Overal opinion is ok about the product.. I would really like to see some alternative stacks, where for example I don't have to buy Smart Caffein (For example: Ciltep+Dopamin+Magtech+Mycomind)

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