Theanine Serene
Goals
$12.25 $0.40 per serving
Product analysis
Theanine Serene combines theanine and magnesium for relaxation and winding down, with possible modest support for calm attention.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality33
The magnesium chelate has a reasonably favorable absorption profile. Most other forms are unspecified, making the complete combination harder to compare with particular tested preparations.
Ingredient Transparency68
All listed amounts are disclosed, making serving comparisons straightforward. Only the magnesium form is specified, leaving most preparations less clearly described.
Value For Money56
Magnesium and theanine contribute favorable value, while taurine is expensive per gram. GABA offers more limited value, so the combination is uneven for the cost.
Customer Satisfaction84
Customer feedback is favorable across thousands of ratings. The broad review base supports the satisfaction pattern without proving lasting stress or sleep benefits.
Product Focus65
Relaxation and winding down are the most coherent uses of the combination. Theanine has limited support for calm attention, while broader mood, energy and hormone benefits remain uncertain or depend on nutritional status.
- Format
Tablet - Container
- 60 Tablet(s)
- Per serving
- $0.40
- Customer rating
- 4.6 · 2,912 ratings
Goals
Impact
Highest effect
Magnesium · 300 mgGABA · 500 mgTheanine · 200 mg
Impact
Highest effect
Magnesium · 300 mgTheanine · 200 mg
Taurine Not classified
No linked studies yet.
Impact
Highest effect
Magnesium · 300 mg
Impact
High effect
Magnesium · 300 mg
Impact
Highest effect
Magnesium · 300 mgTheanine · 200 mg
Impact
High effect
Magnesium · 300 mgTaurine · 450 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
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 |
Theanine · 200 mg OverallScore88
Each serving provides 200 mg of L-Theanine, an amount associated with calming and focus support, at a moderate cost per 100 mg. The available details do not specify a branded form or a purity claim.
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
The label specifies L-Theanine. The available details do not specify a branded form or a purity claim.
Isomer Specificity (L-Theanine)
L-Theanine is the active form associated with calming and focus.
Branded Forms & Purity Standards
No branded form or additional purity claim is specified in the available details.
Dose, Safety & Label Transparency100
The serving provides 200 mg of L-Theanine, an amount associated with calming and focus support. The amount is listed separately.
Theanine Dosage Efficacy
The serving provides 200 mg, an amount associated with calming and focus support.
Label Transparency & Blends
The L-Theanine amount is listed separately.
Value80
The cost per 100 mg of theanine is moderate.
Price per 100mg L-Theanine
The cost per 100 mg of theanine is moderate.
GABA · 500 mg OverallScore73
500 mg of GABA per serving comes at a high cost per serving. The production method is not specified. The Other Ingredients panel includes a flow agent.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
It lists generic GABA without a specific source or production method.
GABA Source & Production Method
It lists generic GABA without a specific source or production method.
Dose, Safety & Label Transparency93
The serving lists 500 mg of GABA. The Other Ingredients panel includes a flow agent.
GABA Dosage Adequacy & Transparency
The GABA amount is 500 mg per serving.
Label Purity & Excipient Quality
The Other Ingredients panel includes a flow agent.
Value40
The cost per serving is high.
Price per Effective Dose
The cost per serving is high for generic GABA.
Magnesium (Magnesium Amino Acid Chelate) · 300 mg OverallScore72
A serving supplies 300 mg of magnesium at a lower whole-product cost per serving. The sources are Magnesium Amino Acid Chelate and magnesium amino acid complex; their proportions aren't disclosed. The magnesium amount is clearly stated.
How this ingredient is rated
Active Ingredient Quality & Bioavailability49
The sources are Magnesium Amino Acid Chelate and magnesium amino acid complex; their proportions aren't disclosed. No specific branded or fully reacted chelation claim is provided.
Magnesium Form & Absorption Potential
The sources are Magnesium Amino Acid Chelate and magnesium amino acid complex; their proportions aren't disclosed.
Patented Materials & Chelation Quality
No specific branded or fully reacted chelation claim is provided.
Dose, Safety & Label Transparency90
A serving provides 300 mg of magnesium. The serving has 0 mg of calcium; no positive cofactor amount is recorded.
Elemental Yield Transparency
The label states 300 mg of elemental magnesium per serving.
Therapeutic Dosage Alignment
A serving provides 300 mg of magnesium.
Synergistic Formulation Logic
The serving has 0 mg of calcium; no positive cofactor amount is recorded.
Value80
The whole-product cost per serving is lower; the magnesium portion has no separate price.
Price Per Elemental Quality
The whole-product cost per serving is lower; the magnesium portion has no separate price.
Alternative products
Report alternatives
Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
- Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
- Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
- An update on magnesium and bone health.
- Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
- Antenatal magnesium sulfate and neuroprotection.
- No. 376-Magnesium Sulphate for Fetal Neuroprotection.
- Magnesium Sulfate Before Preterm Birth for Neuroprotection: An Updated Cochrane Systematic Review.
- Magnesium sulphate for fetal neuroprotection at imminent risk for preterm delivery: a systematic review with meta-analysis and trial sequential analysis.
- Magnesium sulfate and fetal neuroprotection: overview of clinical evidence.
- Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
- A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population.
- Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
- Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
- Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study.
- Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
- Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
- Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
- Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
- Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.