NATURAL STACKS Smart Caffeine Pills - 100mg Caffeine + 200mg L-Theanine Supplement - Supports Energy and Focus - No Jitters and No Crash - 60 Capsules

NATURAL STACKS Smart Caffeine Pills - 100mg Caffeine + 200mg L-Theanine Supplement - Supports Energy and Focus - No Jitters and No Crash - 60 Capsules
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Model: NSK45253
(208)
2 stores
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Product Details

Experience the Pure, Clean Energy of Smart Caffeine Without the Jitters or Crash! Caffeine and L-Theanine Work Synergistically To Give You A Consistent Boost. The Benefits You Can Expect With Smart Caffeine: - Consistent energy for 2-4 hours - No jitters, crash, cravings or ‘rollercoaster’ effects - Added focus and motivation - Clearer thought patterns and sharper recall - Improved metabolism and circulation Suitable for Both Beginner and Experienced Nootropic Users. 100% Safe. Avoid Other Energy Supplements That Use Synthetic Ingredients and Preservatives. Smart Caffeine by Natural Stacks Is Created With Premium, All-Natural Ingredients

ALERT FOCUS AND PRODUCTIVITY: Take this Smart Caffeine Supplement with L-theanine for when you need alert focus and long lasting energy. We blended 100 mg of the purest form of Natural Caffeine with 200mg mg of L-Theanine from Green Tea to get the best of both worlds. NO JITTERS OR CAFFEINE CRASH: Unlike the 200mg caffeine pills that make you jittery and anxious, Smart Caffeine is a calm and smooth energy pill. No more staying up late, wired up from your last cup of coffee too many. START YOUR DAY OFF STRONG: Add Smart Caffeine to your morning routine or anytime of day as a study aid, pre-workout or whenever your energy needs a lift. Perfect as a coffee or energy drink replacement. HEALTHY AND SAFE: Our all natural ingredients are Non-GMO, gluten free, and vegan. Every ingredient can be traced directly to trusted suppliers. Natural Stacks has earned the trust of thousands of customers with our innovative products and open source transparency program. No more “proprietary blends”, we believe in optimizing your performance without compromising on ingredient quality.

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Last Updated: 2025-08-14 16:33:25

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Product Specifications

Technical Details

Manufacturer -
Brand Natural Stacks
Item model number NSK45253
Color White
Weight -
Height -
Depth -

Additional Product Information

Product Id 2429215
User Reviews and Ratings
4.6 (208 ratings)
4.6 out of 5 stars
UPC 798295452535

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NATURAL STACKS Smart Caffeine Pills - 100mg Caffeine + 200mg L-Theanine Supplement - Supports Energy and Focus - No Jitters and No Crash - 60 Capsules
Reviews: 208
app.ratings: (208)
Price:
$19.95 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(5)
Reviewed in the USA on Jun 22, 2024

Quality is good, ingredients are helpful, size is enough, composition are good

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Jul 31, 2023

I love this stuff. So good. Helps with energy, focus, makes you feel calm and alert. I take one every day. Sometimes two. On an empty stomach in the morning. Gives me a good boost with no crash. Better than coffee in my opinion. Good for adhd if you want natural options

Anonymous • Review provider: walmart.com
(4)
Reviewed in the USA on Jul 14, 2023

I have HPA dysfunction, (Hypothalamus, pituitary, adrenal axis) Diagnosed by saliva testing. Cortisol is too high in morning and during the day, going down to normal late afternoon, then spiking in the middle of the night, with awakening then and early morning awakening. I can get very tired during the day, even when clocking up enough hours of sleep. Mid morning, a few hours after getting up, I often get tired. I took 1 capsule with a glass of milk at 11 a.m., but didn't feel more wake up at all. Tried again taking without and also before a meal, and my tiredness disappeared within about 20 minutes on both those days. Took again recently, not near food, and it didn't work. So not getting consistent results.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Feb 20, 2023

This is the Best Caffeine Theanine Blend ever! I've tried other brands to give my energy a boost. This works the best somehow even though the ingredients are the same. It is definitely quality and benefit me greatly on days I need to study. Don't worry about taste because there is not jarring aftertaste at all.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Sep 02, 2022

If you're looking for an energy boosting supplement then this is the perfect product for you, I sincerely thought that this is really the most effective energy supporting capsule here in the market, great for mental focus as it makes you lively and active the whole day, great quality product from iHerb!

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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