Curious as to the amount of Caffeine and L-Theanine in each capsule, could you provide a rough estimate of each please?

100 mg Caffeine and 200 mg L-Theanine per capsule.

Hi Amazon Customer, Thank you for your question. Smart Caffeine is dairy free. We hope this helps! If you have any other questions or concerns, please let us know by reaching out to us directly -- contact@thegroupdeal.com. -Zoey, Customer Service Customer satisfaction is our top priority. We are always happy to help!

I am considering these, but at a lower dose. Are these pills solid that can be broken in half or are they capsules filled with powder?

Check out my response to Luis's comment, but obviously it's you're body so you can do whatever you want. There are other brands on Amazon that sell this same stack but at different doses. Here ya go: http://smile.amazon.com/Puritans-Pride-Caffeine-L-Theanine-Capsules/dp/B00NAWBUHC/ref=pd_sbs_hpc_4?ie=UTF8&refRID=0YMTY1N1XRT72QW09TVVThose have exactly half of what Smart Caffeine has.

How long do the feeling of concentration last from 1 dose?

Let's use today, this morning I took a pill at 9:30. I didn't redose on caffeine (coffee) till 3:55. I would say I felt the slowdown at around 3pm. So it is pretty textbook 5-ish hours that caffeine is rated for. The difference with this pill is besides the non jittery high, the comedown is very easy and didn't feel like a crash, and that's even after a couple of meals.

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Smart Caffeine Pills w/ L-Theanine 200mg, Energy & Focus Support - 60 Count

Product ID: 1549744

Details

Age Range (Description)
Adult
Brand
NATURAL STACKS
Diet Type
Gluten Free
Flavor
Unflavored
Item Form
Capsule
Item dimensions L x W x H
3.94 x 3.94 x

⚡100mg pure caffeine boost

🌿200mg calming L-Theanine

🛡️Non-GMO, vegan & gluten-free

142.39 DT

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Description

⚡ Elevate your hustle with calm, clean energy!

CLEAN TRANSPARENT - Non-GMO, vegan, gluten-free ingredients with full traceability and 3rd party lab testing for peace of mind.
DUAL ACTION FORMULA - 100mg caffeine paired with 200mg L-Theanine for alertness plus calm—your productivity’s new best friend.
TRUSTED OPEN SOURCE - From a brand committed to transparency and quality, ensuring you know exactly what powers your focus.
VERSATILE DAILY BOOST - Perfect for mornings, study sessions, or pre-workout energy—ditch the coffee jitters and stay sharp all day.
BALANCED ENERGY ZERO JITTERS - Experience smooth, sustained focus without the crash or anxiety typical of high-caffeine pills.

Smart Caffeine Pills combine 100mg of pure caffeine with 200mg of L-Theanine from green tea to deliver focused, jitter-free energy. Designed for adults seeking enhanced productivity and sustained alertness, this vegan, non-GMO, and gluten-free supplement offers a clean, transparent formula backed by third-party testing. Ideal as a coffee alternative, it supports mental clarity and physical endurance without the typical caffeine crash.

Specifications

ASIN	B00GXPNEUO
ASIN	B00GXPNEUO
Age Range Description	Adult
Allergen Information	Gluten Free
Best Sellers Rank	#53,389 in Health & Household ( See Top 100 in Health & Household ) #497 in Sports Nutrition Endurance & Energy Products #15,340 in Vitamins, Minerals & Supplements
Brand Name	NATURAL STACKS
Color	Blue
Container Type	Bottle
Customer Reviews	4.3 4.3 out of 5 stars (622)
Date First Available	November 27, 2013
Diet Type	Gluten Free
Dosage Form	1 Capsule
Flavor	Unflavored
Item Dimensions	3.94 x 3.94 x 3.94 inches
Item Form	Capsule
Item Highlight	100mg Caffeine Per Serving - No crash or Jitters - Non-GMO & Gluten Free - Natural Stacks
Manufacturer	Natural Stacks
Manufacturer	Natural Stacks
Manufacturer Part Number	PB-Q91J-HSEU
Material Features	Vegan
Number of Items	1
Primary Supplement Type	Caffeine
Product Benefits	Focused Energy
Product Dimensions	3.94 x 3.94 x 3.94 inches; 1.76 ounces
Special Ingredients	Caffeine, L-Theanine
Specific Uses For Product	Energy, Focus
UPC	798295452535
Unit Count	60 Count

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142.39 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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