NEW
🌿 Ashwagandha KSM-66
Saffron Gummies Supplements with 88.5 mg Saffron Extract
Cost per serving
$0.05
120 servings · ~120-day supply
$6.23last seen · confirm on Amazon
Amazon.com 0
See the offer Best L-Theanine for focus and calm
L-theanine, an amino acid from tea, is taken for calm, steady focus — often paired with caffeine to smooth out the jitters. Below, the l-theanine products people use ranked by real cost per dose (to the commonly-studied 200 mg dose). A value comparison, not medical advice.
Updated July 2026
What the evidence actually shows
Evidence is modest — small studies suggest a subtle effect on relaxed attention, most consistently when combined with caffeine.
Commonly used: ~100–200 mg.
Ranked by cost per dose
NEW
🍵 L-Theanine
Now Foods, L-Theanine, 100 mg, 90 Veg Caps
Cost per serving
$0.17
90 servings · ~90-day supply
$14.98last seen · confirm on Amazon
HerbsPro 0
See the offer NEW
🌿 Ashwagandha KSM-66
Saffron Supplements with Ashwagandha & L-Theanine - 368.5MG…
Cost per serving
$0.17
90 servings · ~90-day supply
$15.18last seen · confirm on Amazon
Amazon.com 0
See the offer NEW
🌿 Ashwagandha KSM-66
3000mg Ashwagandha Gummies for Women & Men
Cost per serving
$0.18
180 servings · ~180-day supply
$31.88last seen · confirm on Amazon
Amazon.com 0
See the offer NEW
🍵 L-Theanine
Nature's Truth, Melatonin Plus L-Theanine Tablets, 10 Mg, 72…
Cost per serving
$0.21
72 servings · ~72-day supply
$14.98last seen · confirm on Amazon
HerbsPro 0
See the offer NEW
🍵 L-Theanine
VALI Caffeine 50mg & L Theanine 100mg - Caffeine Pills…
Cost per serving
$0.22
120 servings · ~120-day supply
$25.99last seen · confirm on Amazon
Amazon.com 0
See the offer NEW
🍵 L-Theanine 3rd-party
Natural Factors Suntheanine L-Theanine 100 mg - Health…
Cost per serving
$0.22
60 servings · ~60-day supply
$13.33last seen · confirm on Amazon
Natural Factors · Amazon.com 0
See the offer NEW
🍵 L-Theanine
NOW Foods Supplements, L-Theanine 200 mg with Inositol, Stress…
Cost per serving
$0.22
120 servings · ~120-day supply
$26.75last seen · confirm on Amazon
NOW Foods · Amazon.com 0
See the offer NEW
🍵 L-Theanine
Bucklebury, Magnesium Glycinate With L-Theanine, 350 Mg, 90…
Cost per serving
$0.24
90 servings · ~90-day supply
Well absorbed
$21.75last seen · confirm on Amazon
HerbsPro 0
See the offer See the full ranking, benchmarks and lab-tested brands on best l-theanine by cost per dose.
Frequently asked
Does l-theanine help with focus and calm?+
Evidence is modest — small studies suggest a subtle effect on relaxed attention, most consistently when combined with caffeine. This page ranks the products people take by real cost per dose; it does not claim a supplement treats or cures anything. Not medical advice — talk to a clinician about focus and calm.
Which l-theanine is cheapest for focus and calm?+
As of July 2026, the best value we track is Saffron Gummies Supplements with 88.5 mg Saffron Extract, Magnesium Glycinate, L-Theanine, Ashwagandha, Rhodiola Rosea, St. John’s Wort - Sugar Free 120 Count. The full ranking by cost per dose is above; Price ÷ servings ÷ dose — the number retailers rarely divide out.
How much l-theanine for focus and calm?+
Commonly ~100–200 mg. This is a general reference, not a prescription — confirm the right amount for you with a clinician. Not medical advice.