SuppHelper
search
Home›Supplements›Botanical›Green Tea›Day Starter Source Naturals
No Image

Day Starter

Source Naturals
4.9
★ ★ ★ ★ ★
(7 ratings)
Green Tea 200 mg
Theanine 200 mg
No Image
Score 82

This product combines caffeine from green tea with L-Theanine to offer a noticeable energy lift and improved focus, aiming for smooth alertness without excessive nervousness.

scaleQuantity:60 Tablet(s) • (60 servings)
track_changesGoals:
flag Energy
flag Mental Focus
flag Cognitive Support
flag Productivity Boost
flag Brain Health
flag Stress Relief
flag Mood Support
flag Metabolism Boost

leaderboard Score 82

This product combines caffeine from green tea with L-Theanine to offer a noticeable energy lift and improved focus, aiming for smooth alertness without excessive nervousness.

insightsAnalysis

Source Naturals Day Starter provides a blend of Green Tea leaf extract, which naturally contains caffeine, alongside L-Theanine. This combination is often sought by individuals looking for a balanced feeling of alertness and calm focus, as L-Theanine is thought to help temper the sharper edges that caffeine can sometimes bring.

The product's primary action revolves around enhancing mental clarity and energy. With 200mg of Green Tea leaf extract, delivering caffeine, it aims to help kickstart your day or provide a boost when feeling sluggish. The inclusion of 200mg of L-Theanine helps promote a more relaxed state while still supporting attention, making it suitable for tasks requiring sustained concentration.

thumb_upPros
  • Provides a combination known for supporting sustained energy and mental clarity.
  • L-Theanine may help smooth out the stimulating effects of caffeine.
  • The 1:1 ratio of caffeine to L-Theanine is a common and often effective blend.
  • Tablet form offers precise dosing per serving.
thumb_downCons
  • May not be suitable for individuals highly sensitive to caffeine.
  • Limited ingredient variety if seeking broader health support beyond energy and focus.
  • The small amount of Calcium is unlikely to provide significant benefit for most.
warningWarnings
  • Contains caffeine, so avoid taking too close to bedtime to prevent sleep disruption.
  • Start with a lower dose if you are sensitive to stimulants to assess tolerance.
  • Do not exceed recommended servings to avoid potential overstimulation.
flagReport analysis
$8.70($0.14 per serving)
iHerb
$ 8.70
flagReport prices
track_changesGoals
flagEnergy
Impact
Highest effect
Caffeine from green tea is a potent stimulant for energy, and L-Theanine can help make that energy feel smoother and more sustained, making this product excellent for boosting alertness.
View goal →
flagMental Focus
Impact
Highest effect
The synergistic effect of caffeine and L-Theanine is particularly effective for enhancing mental focus, sustaining attention, and reducing distractions without excessive jitteriness.
View goal →
flagCognitive Support
Impact
Highest effect
The combination of caffeine and L-Theanine is highly regarded for its ability to support alertness, processing speed, and overall cognitive function. Both ingredients are well-suited for enhancing mental performance.
View goal →
flagProductivity Boost
Impact
Highest effect
The combination of increased energy, enhanced focus, and reduced mental fatigue directly translates to an improved capacity for productive work and tasks.
View goal →
flagBrain Health
Impact
Highest effect
By supporting cognitive functions like focus and alertness, and offering neuroprotective properties through green tea antioxidants, this product can contribute positively to overall brain health.
View goal →
flagStress Relief
Impact
Highest effect
L-Theanine is well-known for its ability to promote a state of relaxed alertness and can contribute to managing daily stress. It helps to counteract the potentially edgy feeling of caffeine.
View goal →
flagMood Support
Impact
High effect
L-Theanine is often used for its calming properties, which can contribute to a more balanced mood without drowsiness. The balanced energy from caffeine can also positively affect mood for some.
View goal →
flagMetabolism Boost
Impact
High effect
The caffeine from green tea is known to help stimulate metabolism and may contribute to increased energy expenditure. This makes it a reasonable choice for those looking for a metabolic lift.
View goal →
scienceIngredients
IngredientAmount per serving
Calcium
21 mg
Green Tea leaf extract
200 mg
L-Theanine
200 mg
person Adults 18–50
flagReport overview
Green Tea 95
The product features 200mg of Green Tea leaf extract as a primary active ingredient, making it a strong and direct fit for this collection.
scienceView ingredientinventory_2View products
Theanine 95
With 200mg of L-Theanine, a key ingredient that provides significant benefits to mental state, this product is an excellent example for the Theanine collection.
scienceView ingredientinventory_2View products
inventory_2Alternative products
92 Value

Green Tea

Jarrow Formulas
4.5
★★★★★
(4112 ratings)
This product delivers an exceptionally high concentration of beneficial green tea compounds like EGCG and catechins at a very low cost per serving. It's a fantastic value for those prioritizing the comprehensive antioxidant, metabolism-supporting, and anti-inflammatory benefits of green tea.
Other sellers (4)
88 Value

L-Theanine

NOW
4.7
★★★★★
(697 ratings)
For focusing specifically on the L-Theanine benefits of calm, focus, and stress relief, this option provides a good dose at a very competitive price point. It's a straightforward way to get effective support for mental clarity and mood without overspending.
Other sellers (3)
82 Value

Green Tea Extract 400 mg

NOW
4.7
★★★★★
(9905 ratings)
This product offers a higher caffeine content for an energy and focus boost, along with a good amount of green tea catechins for general health support, all at a significantly lower cost per serving. It presents a strong value for those looking for a potent and affordable green tea supplement.
Other sellers (4)
92 Performance

Green Tea

Jarrow Formulas
4.5
★★★★★
(4112 ratings)
This product offers a much higher and more standardized extract of potent green tea compounds like EGCG, catechins, and polyphenols. It can be a better choice for the broader health goals associated with green tea, such as supporting detoxification, anti-inflammatory processes, metabolism, anti-aging, and cardiovascular health.
Other sellers (4)
89 Performance

Matcha Power

Pure Synergy
4.5
★★★★★
(176 ratings)
Matcha is a unique form of green tea that naturally contains both caffeine for energy and L-Theanine for calm focus, making it an excellent synergistic alternative. This provides a whole-food approach to supporting energy, mental clarity, and productivity, along with the rich antioxidant profile of green tea.
Other sellers (3)
90 Performance

Double Strength L-Theanine 200 mg

NOW
4.7
★★★★★
(41779 ratings)
If your primary focus is on enhancing the calming and cognitive benefits of L-Theanine, this product not only provides a good dose of L-Theanine but also includes Inositol, which may further support mood balance and mental clarity. This combination can contribute to a more profound sense of stress relief and mental focus.
Other sellers (5)
82 Budget

Green Tea Extract 400 mg

NOW
4.7
★★★★★
(9905 ratings)
For those seeking a strong energy and metabolism boost from green tea with caffeine at a very appealing price. The higher caffeine content can provide a pronounced stimulating effect, and catechins contribute to antioxidant support for various health goals.
Other sellers (4)
88 Budget

L-Theanine

NOW
4.7
★★★★★
(697 ratings)
If your primary interest is the calming focus and stress relief aspect of L-Theanine, this product offers a slightly higher dose than your current product at a lower cost per serving. It can be a great choice for supporting mental clarity without the jitters.
Other sellers (3)
65 Budget

Green Tea 500 mg

Swanson
4.6
★★★★★
(3420 ratings)
A straightforward and economical way to get the general benefits of green tea. While it may not specify exact caffeine or EGCG content, it provides a solid dose of the whole leaf powder for detoxification and metabolism support at a very low price.
Other sellers (1)
92 Value

Green Tea

Jarrow Formulas
4.5
★★★★★
(4112 ratings)
This product delivers an exceptionally high concentration of beneficial green tea compounds like EGCG and catechins at a very low cost per serving. It's a fantastic value for those prioritizing the comprehensive antioxidant, metabolism-supporting, and anti-inflammatory benefits of green tea.
Other sellers (4)
88 Value

L-Theanine

NOW
4.7
★★★★★
(697 ratings)
For focusing specifically on the L-Theanine benefits of calm, focus, and stress relief, this option provides a good dose at a very competitive price point. It's a straightforward way to get effective support for mental clarity and mood without overspending.
Other sellers (3)
82 Value

Green Tea Extract 400 mg

NOW
4.7
★★★★★
(9905 ratings)
This product offers a higher caffeine content for an energy and focus boost, along with a good amount of green tea catechins for general health support, all at a significantly lower cost per serving. It presents a strong value for those looking for a potent and affordable green tea supplement.
Other sellers (4)
92 Performance

Green Tea

Jarrow Formulas
4.5
★★★★★
(4112 ratings)
This product offers a much higher and more standardized extract of potent green tea compounds like EGCG, catechins, and polyphenols. It can be a better choice for the broader health goals associated with green tea, such as supporting detoxification, anti-inflammatory processes, metabolism, anti-aging, and cardiovascular health.
Other sellers (4)
89 Performance

Matcha Power

Pure Synergy
4.5
★★★★★
(176 ratings)
Matcha is a unique form of green tea that naturally contains both caffeine for energy and L-Theanine for calm focus, making it an excellent synergistic alternative. This provides a whole-food approach to supporting energy, mental clarity, and productivity, along with the rich antioxidant profile of green tea.
Other sellers (3)
90 Performance

Double Strength L-Theanine 200 mg

NOW
4.7
★★★★★
(41779 ratings)
If your primary focus is on enhancing the calming and cognitive benefits of L-Theanine, this product not only provides a good dose of L-Theanine but also includes Inositol, which may further support mood balance and mental clarity. This combination can contribute to a more profound sense of stress relief and mental focus.
Other sellers (5)
flagReport alternatives

SuppHelper

Compare supplements smarter. Science-backed, user-rated, updated daily.

Explore

  • Compare Supplements
  • Health Goals
  • Stacks

Legal

  • Privacy Policy
  • Terms of Use
  • Medical Disclaimer

Stay in the Loop

© 2025 SuppHelper. All rights reserved.