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Memory Stack

Regular price $169.95

How It Works

CILTEP® is a natural formula designed to safely enhance the brain's ability to form vivid, long-lasting memories and remain sharply motivated and focused for hours.

Users of CILTEP® often report:

  • Increased motivation and mental endurance
  • Improved concentration and alertness
  • Improved mood and social ease
  • Enhanced ability to study

Beat Brain Fog!

Brain Fog is the worst! We all have those moments where it's just impossible to focus, or when the one thing we were thinking of is just stuck at the tip of the tongue!

As we get older these things tend to get worse, but the good news is they don't have to. 

There's a reason why thousands of entrepreneurs, doctors, firefighters and students around the world are using CILTEP® to boost their focus, motivation and memory. 

Introducing CILTEP® (sil-tep) for Focus and Memory

CILTEP® is a natural supplement that can help you achieve a higher state of focus and concentration with enhanced memory formation.

The formula is designed to induce long-term potentiation (LTP) in the brain. 

LTP is a crucial mechanism involved in the formation of new memories and the strengthening of neural synapses.



The formula works by:

PDE4 Inhibition + Increasing cAMP = Long-Term Potentiation

Developed by Abelard Research, the CILTEP® Formula is a protected by United States Patent and Trademark Office US9149457B2.

Natural Stacks is currently involved in multiple placebo-controlled, double-blind University studies on its effectiveness.

PDE4 INHIBITION

PDE4 is an enzyme that breaks down cAMP molecules, messenger systems that relay signals in the brain. 

Inhibition of PDE4 blocks the breakdown of cAMP, and thereby increases levels of cAMP within brain cells.

This has been shown to lead to increased cognition, improved long term memory, increased wakefulness, and neuroprotection. [3,4,5,6,7,8]

There have been several natural PDE4 inhibitors identified in herbal preparations including luteolin, which is present in artichoke extract. It also inhibits PDE 1 through 5 which have both shown beneficial activity with regards to synaptic plasticity. [1,2]

Artichoke Extract is a safe, effective and natural PDE4 Inhibitor. [1,2] CILTEP contains 900 mg of the highest quality Artichoke Extract in each serving.

INCREASING cAMP

The herb Forskolin (active compound extracted from the root of the Coleus Forskohlii plant) has been shown to naturally increase cAMP levels. 

It activates the enzyme adenylyl cyclase which then increases intracellular levels of cAMP. [10]

CILTEP features premium Coleus Forskohlii standardized for 20% Forskolin. There are 4 mg of Forskolin in each serving of CILTEP.

Increasing cAMP and inhibiting its degradation supports Long-Term Potentiation (LTP).

Summary: PDE4 Inhibition + Increasing cAMP → LTP → Supports optimal mental performance

Acetylcholine Brain Food™ is designed to promote the production of acetylcholine, a neurotransmitter essential to mental processing. Research suggests that the natural compounds in Acetylcholine Brain Food™ are associated with memory and cognitive function.

  • Improved attention to detail†
  • Better mental clarity†
  • Faster thinking†
  • Cuts through brain fog†

To make acetylcholine, the brain needs two elements: an acetyl group and a choline molecule.

An acetyl group is a type of simple molecular building block of organic chemistry with a chemical formula of C2H30. The acetyl group is usually present in the brain as Acetyl-CoA. Choline and the acetyl group are grouped together by the enzyme Choline Acetyltransferase (ChAT). 

They are both stored in neurons, released, and then broken down by another enzyme called acetylcholinesterase (AchE). To increase levels of acetylcholine, we use the following approach:

  • Create more acetyl-CoA molecules to provide acetyl groups to ChAT for acetylcholine production.
  • Provide more choline in choline producing (cholinergic) neurons for use by ChAT.
  • Increase or upregulate the activity of ChAT.
  • Decrease the activity of AchE.

Acetylcholine Brain Food™ contains the essential raw materials for the brain to increase production, achieve balance, and maintain prolonged activity of the neurotransmitter acetylcholine -- the Learning Molecule.

MagTech™ is the highest quality magnesium complex on the planet featuring three types of magnesium known to have the highest absorption rates, each with unique biological effects: L-Threonate, Taurate, and Glycinate.

Research suggests that the magnesium-l-threonate in MagTech™ is the only form of magnesium proven to cross the blood-brain barrier and:

  • Increase synapse density
  • Support healthy cognitive aging
  • Support healthy learning and memory
  • Promote relaxation and support quality sleep

100% chelated and optimized with nutritionally functional amino acids, MagTech™ is the best magnesium complex on the market.



MagTech is an innovative magnesium supplement unlike any other on the market. By including magnesium glycinate and magnesium taurate, MagTech combines the calming, sleep-promoting powers of traditional magnesium supplements and adds the breakthrough technology of the super mineral magnesium-l-threonate to elevate brain concentrations of magnesium.

This combination is something no other form of magnesium can do.

Think Clearly & Sleep Better with MagTechMagnesium-l-threonate

Magtein™ (the trademarked name of magnesium l-threonate in MagTech) has been shown to significantly increase the brain’s number of synaptic connections / synaptic density (see graph on the left), and enhance both short-term and long-term memory (see graph on the right).

This MIT study concluded: “Our findings suggest that an increase in brain magnesium enhances both short-term synaptic facilitation and long-term potentiation and improves learning and memory functions”.

The same double-blind, placebo-controlled human clinical trial researchers found that with MMFS-01 (magnesium-l-threonate) treatment "overall cognition improved significantly at week 6 and maintained improvement at week 12". They also concluded that it improved 'brain age' by 9 years based on "restored impaired executive function of the subjects" (age 50-70). [5]

Top neuroscientists from universities in Beijing, Texas, and Toronto found that “elevation of brain magnesium, by a novel magnesium compound [magnesium-l-threonate (MgT)], enhances synaptic plasticity in the hippocampus and learning and memory” [6]

Twelve scientists at MIT conducted a study on magnesium-L-threonate and concluded that “an increase in brain magnesium enhances both short-term synaptic facilitation and long-term potentiation and improves learning and memory functions.” [7]

A study using magnesium-L-threonate discovered that “Elevation of Brain Magnesium Prevents and Reverses Cognitive Deficits and Synaptic Loss” [8]

Science Based Discussion on the Role of MagTein: READ MORE

Magnesium Glycinate

Magnesium glycinate is a highly bioavailable form of magnesium and a significant source of glycine, an amino acid that promotes deep sleep and the elimination of toxins from the body.

Glycine (found in Magnesium Glycinate):

A 2012 study on healthy male volunteers found that "glycine improves daytime sleepiness and fatigue induced by acute sleep restriction" [9]

A study on individuals with continuous complaints about the quality of their sleep concluded that "glycine ingestion significantly improved the following elements: 'fatigue', 'liveliness and preppiness', and 'clear-headedness'." [10]

When studying the effects of glycine ingestion before bedtime on volunteers who have been experiencing unsatisfactory sleep, scientists in Japan found that it "improved the volunteers' satisfaction with their sleep, the difficulty of sleep onset, and sleep efficiency" [11]

Glycine concentrations in the brain have also been shown to positively “influence learning and memory functions” in both young and old adults by facilitating memory retrieval. [12]

Magnesium Taurate

Magnesium taurate delivers an important amino acid, taurine to the brain and body. Magnesium and taurine have synergistic and potentiating roles.

Magnesium and taurine work together to stabilize cell membranes throughout the central nervous system and maintain neurotransmitter balance. One of taurine’s main tasks is to facilitate the passage of sodium, potassium, and magnesium ions into and out of cells for optimal neuronal activity.

Taurine is an amino acid that acts as an antioxidants and has a role in vision, cardiac health, bile production, as well as muscle growth.

Taurate (found in Magnesium Taurate)

Researchers at Tufts University found that "Taurine increased choice reaction time" and "Taurine reversed the effects of caffeine-withdrawal symptoms" [13]

A recent study on taurine's ability to support healthy cognition through the aging process concluded that taurine supplementation "significantly ameliorated the age-dependent decline in spatial memory acquisition and retention" and can "forestall the age-related decline in cognitive functions". [14]

In Japan, a study of 25 male college students found that "taurine supplementation alleviates visual fatigue induced by visual display terminal (VDT) work" [15]


Acetylcholine Brain Food™
Acetylcholine Brain Food™ is designed to promote the production of acetylcholine, a neurotransmitter essential to mental processing. Research suggests that the natural compounds in Acetylcholine Brain Food™ are associated with memory and cognitive function.

Improved attention to detail†

Better mental clarity†

Faster thinking†

Cuts through brain fog†

Learn More About Acetylcholine Brain Food™
Ciltep®

CILTEP® is a natural nootropic designed to safely enhance the brain's ability to form vivid, long-lasting memories and remain sharply motivated and focused for hours.

Increased focus and mental sharpness

Increased motivation and mental endurance

Enhanced sense of novelty, presence, and awareness

Improved recall and memory formation

Learn More About Ciltep®
MagTech™

MagTech™ is the highest quality magnesium complex on the planet featuring three types of magnesium known to have the highest absorption rates, each with unique biological effects: L-Threonate, Taurate, and Glycinate.

Improved memory and mental clarity

Deeper, restorative and restful sleep

Support for healthy brain activity and learning

Healthy and balanced mood

Learn More About MagTech™

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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†These statements have not been evaluated by the Therapeutic Goods Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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