$22.39 $0.37 per serving
Product analysis
Theanine Serene may help with calm focus and sleep quality, mainly through theanine and magnesium. Most ingredient forms are not disclosed, which makes the rest of the formula harder to compare with specific preparations.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality33
Magnesium is the clearest part of the formula to judge by form. Most other forms are undisclosed, which limits confidence in their preparation and absorption.
Ingredient Transparency68
Ingredient amounts are stated throughout, so you can compare serving contents. Only the magnesium form is disclosed, leaving much of the formula less clearly described.
Value For Money56
The magnesium and theanine content offer good value at the full serving cost. GABA and taurine are less economical, while value for the remaining ingredients is uncertain.
Customer Satisfaction81
Customer ratings are strongly positive. A substantial review pool gives a broader picture of satisfaction than a handful of reviews would.
Product Focus65
The formula is most coherent for calming and sleep-related aims. Connections to its wider range of uses are less consistent, so expectations should stay centered on those main purposes.
- Format
Tablet - Container
- 120 Tablet(s)
- Per serving
- $0.37
- Customer rating
- 4.7 · 1,140 ratings
Goals
Impact
Highest effect
Magnesium · 300 mgTheanine · 200 mg
Taurine Not classified
No linked studies yet.
Impact
Highest effect
Magnesium · 300 mgGABA · 500 mgTheanine · 200 mg
Impact
Highest effect
Magnesium · 300 mgTheanine · 200 mg
Impact
High effect
Magnesium · 300 mgTheanine · 200 mg
Impact
Highest effect
Magnesium · 300 mgTheanine · 200 mg
Impact
Highest effect
Magnesium · 300 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 5 Calorie(s) | |
Total Carbohydrates | 1 Gram(s) | |
Magnesium (Magnesium 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, at a moderate cost per 100 mg when the full product price is used. The amount is associated with relaxation and focus. No branded source or purity claim is specified in the available information.
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
The ingredient is specified as L-Theanine. No branded source or purity claim is specified in the available information.
Isomer Specificity (L-Theanine)
The ingredient is specified as L-Theanine.
Branded Forms & Purity Standards
No branded source or purity claim is specified in the available information.
Dose, Safety & Label Transparency100
The serving clearly states 200 mg of L-Theanine, an amount associated with relaxation and focus.
Theanine Dosage Efficacy
At 200 mg per serving, it provides an amount associated with relaxation and focus.
Label Transparency & Blends
The L-Theanine amount is individually stated as 200 mg per serving.
Value80
The full product cost per 100 mg of theanine is moderate.
Price per 100mg L-Theanine
Using the full product price, the cost per 100 mg of theanine is moderate.
GABA · 500 mg OverallScore73
A serving provides 500 mg of GABA, and the whole-product serving cost is high. The production method is not specified. The Other Ingredients panel includes a flow agent, but its name is unavailable.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
The label names GABA without a specific branded source.
GABA Source & Production Method
The label names GABA without a specific branded source.
Dose, Safety & Label Transparency93
A serving lists 500 mg of GABA. The Other Ingredients panel includes a flow agent, but its name is unavailable.
GABA Dosage Adequacy & Transparency
A serving lists 500 mg of GABA.
Label Purity & Excipient Quality
The Other Ingredients panel includes a flow agent, but its name is unavailable.
Value40
The whole-product cost per serving is high.
Price per Effective Dose
The whole-product cost per serving is high.
Magnesium (Magnesium Chelate) · 300 mg OverallScore72
A serving supplies 300 mg of magnesium. It uses magnesium chelate. The serving cost is considered alongside magnesium chelate.
How this ingredient is rated
Active Ingredient Quality & Bioavailability49
It uses magnesium chelate. No specific chelation standard is stated.
Magnesium Form & Absorption Potential
It uses magnesium chelate.
Patented Materials & Chelation Quality
No specific chelation standard is stated.
Dose, Safety & Label Transparency90
The label states 300 mg of elemental magnesium per serving. The serving also lists 0 mg of calcium.
Elemental Yield Transparency
The elemental magnesium amount per serving is stated.
Therapeutic Dosage Alignment
The label states 300 mg of elemental magnesium per serving.
Synergistic Formulation Logic
The serving also lists 0 mg of calcium.
Value80
The serving cost is considered alongside magnesium chelate.
Price Per Elemental Quality
The serving cost is considered alongside magnesium chelate.
Alternative products
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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.