The only answer provided from the manufacturer, Source Naturals website was "Where does l-theanine come from? It is found almost exclusively in black and green tea. It is the primary ingredient contributing to the pleasant taste of green tea."

About Us

Customer Services

Customer Support

Regional Access

Legal & Policies

Social

Get the App

Point your camera to download the app

Customer support

We're available 24/7 to help you!

Source NaturalsSerene Science L Theanine 200Mg Supplement 120 Capsules 120 Count

Q: How many 200mg capsules are in this product? No mention - assuming it's 30 caps, we bought Jarrow, but for future, would love to know...

HI Saki. There is 200mg and the bottle has 60 capsules.

Q: How long until you notice an effect?

Soon after you take it. Take two at once if you are stressed or have anxiety. For maintenance, you can take one in the morning & one in the evening or just one a day.

4.6/5

Product ID: 266480700

Secure Transaction

Details

Brand
Source
Flavor
Unflavored
Unit Count
120 Count
Item Form
Capsule
Item Weight
1.6 ounces
Item dimensions L x W x H
1.3 x 1.3 x

Frequently Bought Together

SOURCE NATURALS Serene Science L-Theanine 200 Mg Capsule, 120 Count

Source Naturals Citrate Malate Calcium Calcium, 120 CT

Source Naturals Magnesium Malate, Supports Muscles and Energy Production*, 3750 MG - 200 Capsules

Description

Source NaturalsSerene Science L Theanine 200Mg Supplement 120 Capsules 120 Count

Have a Question? See What Others Asked

How many 200mg capsules are in this product? No mention - assuming it's 30 caps, we bought Jarrow, but for future, would love to know...

is this from china?

are these breakable tablets?

How long until you notice an effect?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

766.54 DT

Duties & taxes incl.

Tunisiastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews