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Theanine Serene

Source Naturals Serene Science
4.5
★ ★ ★ ★ ★
(2784 ratings)
Theanine 200 mg
Magnesium 300 mg
GABA 500 mg
Taurine 450 mg
Product Image
Score93

A focused relaxation tablet featuring chelated magnesium, GABA, and L-theanine for mental rest.

How scoring works
Quantity:60 Tablet(s) • (30 servings)
Goals:
Mood Support
Sleep Support
Productivity Boost
Stress Relief
Brain Health
General Health
Heart Health
Mental Focus

Score 93

A focused relaxation tablet featuring chelated magnesium, GABA, and L-theanine for mental rest.

How scoring works
$11.98($0.39 per serving)
Vitacost
$ 12.25
iHerb
$ 12.25
Amazon
$ 11.97
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Analysis

By using magnesium amino acid chelate, this formula ensures that the mineral is delivered efficiently to the nervous system. The addition of taurine and holy basil helps support a steady heart rhythm and healthy stress levels.

This is a solid choice for people who want a clean, amino-acid-based relaxation supplement. It provides a reliable 200mg dose of L-theanine, which is often used to support alpha brain wave activity for a calm, alert state.

Pros

  • Effective 300mg chelated magnesium dose
  • Potent GABA and Theanine levels
  • Includes Holy Basil for adaptogenic support
  • Helps with evening unwinding
  • Supports healthy heart and nervous system

Cons

  • Lacks the Relora found in the 'with Relora' version
  • Large tablets can be hard to swallow
  • Daily cost is higher than basic minerals

Warnings

  • Avoid taking with excessive alcohol
  • Take before bed for help with physical relaxation

Nutrient quality

93 Highest impact

Meaningfully dosed GABA and theanine provide robust support for inhibitory signaling pathways. Inclusion of magnesium chelate and taurine enhances the formula's focus on relaxation.

Ingredient transparency

97 Highest impact

Clear disclosure of all active milligram amounts ensures users can evaluate the potency for relaxation. Specific ingredient naming and straightforward serving instructions support informed use.

Customer satisfaction

92 Highest impact

Strong average ratings and a large review count reflect broad satisfaction for stress and sleep support. feedback aligns well with the intended mental calm outcomes.

Value for money

90 Highest impact

Good value is provided by the reasonable cost per serving of this amino-focused relaxation blend. The combination of aminos and magnesium justifies the price point for daily use.

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Goals

Sleep Support
Impact
Highest effect
A+ Goal FitA+ Strength of SupportA+ CoverageA+ Formula Quality

Magnesium, GABA, and Theanine are provided in this relaxation-focused blend.

Providing 500mg of GABA and 200mg of theanine appears well aligned with helping the body transition into a restful state.

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Mood Support
Impact
Highest effect
A+ Goal FitA+ Strength of SupportA+ CoverageA+ Formula Quality

L-Theanine and Gamma-Aminobutyric Acid appear well aligned for promoting relaxation and emotional stability by modulating brain wave activity. This formula provides meaningful doses of several inhibitory agents to support a calm state under stress.

The 200mg dose of L-Theanine and 500mg of GABA are therapeutic amounts that offer significant strength for their respective pathways. By addressing multiple biological mechanisms including inhibitory neurotransmission and HPA-axis regulation, this supplement provides robust support for a stable mood.

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Stress Relief
Impact
Highest effect
A+ Goal FitA Strength of SupportA CoverageA Formula Quality

This relaxation formula provides high doses of L-Theanine and GABA to support the inhibitory neurotransmitter systems in the brain. Magnesium Amino Acid Chelate and Taurine further contribute to mental calm and nervous system stability.

Providing 200 mg of L-Theanine meets established clinical benchmarks for therapeutic effectiveness in promoting alpha brain wave activity. The formula addresses multiple physiological pathways, appearing well aligned for those seeking comprehensive support for mental and physical relaxation.

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Productivity Boost
Impact
Highest effect
A Goal FitA+ Strength of SupportA- CoverageA+ Formula Quality

This relaxation-focused formula pairs L-Theanine with GABA and Magnesium to support mental calm and focus. L-Theanine appears well aligned with the requirements for 'relaxed wakefulness,' helping to maintain concentration during demanding daily tasks.

A 200mg dose of L-Theanine and 500mg of GABA provide strong support for the body's inhibitory neurotransmitter pathways. This foundational calming approach is helpful for maintaining the emotional resilience and cognitive clarity needed for consistent productivity.

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Brain Health
Impact
Highest effect
A- Goal FitA Strength of SupportA- CoverageA Formula Quality

Magnesium, GABA, taurine, and L-theanine support a calm mental state and balanced nervous system. These ingredients appear well aligned with goals for focused alertness and stress management.

Holy basil leaf extract contributes adaptogenic properties that may support cognitive resilience. The inclusion of a chelated magnesium form ensures meaningful bioavailability for neurological utility.

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General Health
Impact
Highest effect
A- Goal FitA Strength of SupportB CoverageA+ Formula Quality

Magnesium Amino Acid Chelate provides foundational support for systemic resilience and over three hundred essential metabolic processes. This meaningfully dosed mineral is paired with amino acids like Taurine and Theanine to support daily vitality and nervous system health.

The inclusion of GABA and Holy Basil further enhances the formulation's approach to managing common physiological stressors. This product appears well aligned with the goal of maintaining foundational wellness and protecting against the impact of daily stressors on the body's systems.

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Ingredients

IngredientAmount per serving
Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s)
Magnesium (Magnesium Amino Acid Chelate)
 300 mg
GABA
500 mg
Taurine
450 mg
L-Theanine
200 mg
Holy Basil leaf extract
100 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Vegetarian
Report overview
Theanine · 200 mg OverallScore92
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
A potent relaxation formula that combines L-Theanine with Magnesium and GABA for comprehensive stress support. This combination is designed to soothe the nervous system and promote emotional well-being.
View ingredientView products
Magnesium (Magnesium Amino Acid Chelate) · 300 mg OverallScore73
D+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA- Value
Magnesium amino acid chelate is a reliable form for mineral support with decent bioavailability. This product offers a balanced dose and good value, making it a solid choice for daily use at a competitive price.
View ingredientView products
GABA · 500 mg OverallScore71
C+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD- Value
Featuring 500mg of GABA and 200mg of L-Theanine, this tablet formula is designed for focused relaxation. It provides a solid dose of its main ingredients, though it is less cost-effective than simple GABA products.
View ingredientView products
93 Value

Theanine Serene

Source Naturals
4.7
★★★★★
(1139 ratings)
Magnesium chelate and holy basil leaf contribute to nervous system stability and emotional balance in a highly cost-effective 120-count format. This larger size offers consistent levels of calming actives for a more economical daily routine.
Other sellers (2)
93 Value

Chewable L-Theanine 100 mg

NOW
4.7
★★★★★
(3580 ratings)
L-theanine works with inositol and taurine to support a calm but alert state of mind. The chewable format is excellent for maintaining focus during demanding tasks and offers one of the lowest costs per serving available.
Other sellers (4)
93 Value

Totally Zen

Carlson
4.7
★★★★★
(413 ratings)
Magnesium citrate and a complete B-vitamin complex help maintain nervous system stability and emotional wellness. This formulation provides a well-rounded set of nutrients for stress management at a very competitive price.
Other sellers (0)
94 Performance

GABA Soothe

Jarrow Formulas
4.6
★★★★★
(1383 ratings)
Standardized Sensoril ashwagandha enhances the formula's ability to support emotional equilibrium and manage cortisol responses. Combined with GABA and theanine, it provides a more advanced approach to long-term stress management and mental focus.
Other sellers (4)
94 Performance

ZenMind

NutriCology
4.6
★★★★★
(285 ratings)
Using premium Suntheanine and pharmaGABA ensures consistent biological activity for inducing a calm state without sedation. This streamlined, high-purity formula is ideal for individuals requiring reliable neurological support during periods of high pressure.
Other sellers (3)
94 Performance

NutraSleep

Source Naturals Sleep Science
4.3
★★★★★
(437 ratings)
A powerful 875mg dose of taurine and high-potency magnesium citrate provide significant support for physical and cardiac relaxation. Inclusion of skullcap and valerian makes this a better choice for individuals whose stress impacts their sleep quality.
Other sellers (1)
94 Budget

Chewable GABA

NOW
4.6
★★★★★
(4770 ratings)
Chewable tablets provide a rapid-acting delivery method for GABA and taurine to support immediate relaxation needs. This formulation is highly affordable and focuses on the most effective amino acids for modulating mental tension.
Other sellers (6)
94 Budget

Totally Zen

Carlson
4.7
★★★★★
(413 ratings)
A full spectrum of B-vitamins works with magnesium citrate to support neurological resilience and stabilize mood. The large bottle size offers superior long-term value for managing daily stress compared to smaller count options.
Other sellers (1)
84 Budget

Goodbye Stress Berry Verbena

OLLY
4.4
★★★★★
(3510 ratings)
Lemon balm extract, GABA, and L-theanine are provided in a convenient gummy format to assist with the body's natural relaxation response. This alternative is suitable for mild stress maintenance and offers a pleasant way to integrate calming aminos into a routine.
Other sellers (3)
93 Value

Theanine Serene

Source Naturals
4.7
★★★★★
(1139 ratings)
Magnesium chelate and holy basil leaf contribute to nervous system stability and emotional balance in a highly cost-effective 120-count format. This larger size offers consistent levels of calming actives for a more economical daily routine.
Other sellers (2)
93 Value

Chewable L-Theanine 100 mg

NOW
4.7
★★★★★
(3580 ratings)
L-theanine works with inositol and taurine to support a calm but alert state of mind. The chewable format is excellent for maintaining focus during demanding tasks and offers one of the lowest costs per serving available.
Other sellers (4)
93 Value

Totally Zen

Carlson
4.7
★★★★★
(413 ratings)
Magnesium citrate and a complete B-vitamin complex help maintain nervous system stability and emotional wellness. This formulation provides a well-rounded set of nutrients for stress management at a very competitive price.
Other sellers (0)
94 Performance

GABA Soothe

Jarrow Formulas
4.6
★★★★★
(1383 ratings)
Standardized Sensoril ashwagandha enhances the formula's ability to support emotional equilibrium and manage cortisol responses. Combined with GABA and theanine, it provides a more advanced approach to long-term stress management and mental focus.
Other sellers (4)
94 Performance

ZenMind

NutriCology
4.6
★★★★★
(285 ratings)
Using premium Suntheanine and pharmaGABA ensures consistent biological activity for inducing a calm state without sedation. This streamlined, high-purity formula is ideal for individuals requiring reliable neurological support during periods of high pressure.
Other sellers (3)
94 Performance

NutraSleep

Source Naturals Sleep Science
4.3
★★★★★
(437 ratings)
A powerful 875mg dose of taurine and high-potency magnesium citrate provide significant support for physical and cardiac relaxation. Inclusion of skullcap and valerian makes this a better choice for individuals whose stress impacts their sleep quality.
Other sellers (1)
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