Theanine Serene With Relora

Theanine Serene With Relora

Source Naturals4.6 (66 ratings)
Format:Tablet Quantity: 30 Tablet(s) · 15 servings
Goals
$7.35 $0.49 per serving

Product analysis

46 out of 100

Theanine Serene With Relora may help short-term relaxation and settling down. The additional botanical preparations are less clear, making their contribution harder to predict.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality33

Magnesium uses an identified chelate, while the theanine preparation is inconsistently described. Several other preparations and the botanical blend proportions remain unclear.

Ingredient Transparency58

The declared amounts help compare the main ingredients. Missing preparation details and botanical proportions limit assessment of the added blend.

Value For Money48

The theanine offers favorable value, with magnesium nearer the middle range. Taurine is costly for the amount supplied, and some other components lack reliable value comparisons.

Customer Satisfaction69

Customer ratings are very positive, but they come from a small group. That gives a limited picture of customer satisfaction.

Product Focus30

The main connection is short-term calming and settling down. The broad list of intended uses and incompletely described botanicals make wider expectations less dependable.

Format
Tablet
Container
30 Tablet(s)
Per serving
$0.49
Customer rating
4.6 · 66 ratings
Report analysis

Goals

Stress Relief
Impact
Highest effect
B+ Ingredient FitB+ PathwaysA- EvidenceA+ Formulation Logic
Magnesium · 300 mgGABA · 500 mgTheanine · 200 mg
Study evidence
GABA Supportive 6 studies
Magnesium Supportive 13 studies
Taurine Supportive 5 studies
Theanine Supportive 16 studies
Mood Support
Impact
Highest effect
A- Ingredient FitC PathwaysB+ EvidenceA+ Formulation Logic
Magnesium · 300 mg
Study evidence
GABA Supportive 12 studies
Magnesium Supportive 60 studies
Theanine Supportive 12 studies
Impact
Highest effect
B+ Ingredient FitB+ PathwaysA EvidenceA+ Formulation Logic
Magnesium · 300 mgTheanine · 200 mg
Study evidence
GABA Supportive 4 studies
Magnesium Supportive 23 studies
Taurine Not classified

No linked studies yet.

Theanine Supportive 8 studies
Brain Health
Impact
High effect
B- Ingredient FitC PathwaysA- EvidenceA+ Formulation Logic
Magnesium · 300 mg
Study evidence
Magnesium Supportive 86 studies
Theanine Supportive 17 studies
Impact
High effect
C+ Ingredient FitB+ PathwaysB+ EvidenceA+ Formulation Logic
Magnesium · 300 mgTaurine · 450 mg
Study evidence
Magnesium Supportive 114 studies
Taurine No effect 3 studies
Cardiovascular Support
Impact
High effect
C- Ingredient FitC- PathwaysA- EvidenceA+ Formulation Logic
Magnesium · 300 mgTaurine · 450 mg
Study evidence
Magnesium Supportive 123 studies
Taurine Supportive 24 studies

Ingredients

IngredientAmount per servingScore
Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s)
Magnesium (Magnesium Chelate)
300 mg 66
GABA
500 mg 73
Taurine
450 mg 50
L-Theanine
200 mg 88
Relora (Magnolia officinalis, Phellodendron amurense)
150 mg
Holy Basil leaf extract
100 mg
Adults 18–50
Report overview
Theanine · 200 mg OverallScore88
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
The serving provides 200 mg of L-theanine at a moderate cost for the amount. No branded source or purity testing claim is documented.
How this ingredient is rated

Active Ingredient Quality & Bioavailability80

The ingredient is L-theanine, the form associated with calming and focus. No branded source or purity testing claim is documented.
Isomer Specificity (L-Theanine)
The label specifies L-theanine, the form associated with calming and focus.
Branded Forms & Purity Standards
No branded source or purity testing claim is documented.

Dose, Safety & Label Transparency100

The serving provides 200 mg of L-theanine. Its amount is individually disclosed.
Theanine Dosage Efficacy
The serving provides 200 mg of L-theanine.
Label Transparency & Blends
The L-theanine amount is individually disclosed.

Value80

The cost for the L-theanine amount is moderate.
Price per 100mg L-Theanine
The cost for the L-theanine amount is moderate.
GABA · 500 mg OverallScore73
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD- Value
A serving provides 500 mg GABA at a relatively high cost. It uses unbranded GABA with an unspecified source. The Other Ingredients include a flow agent.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

The GABA is unbranded; its source is unspecified.
GABA Source & Production Method
The GABA is unbranded; its source is unspecified.

Dose, Safety & Label Transparency93

The serving states 500 mg GABA. The Other Ingredients include a flow agent.
GABA Dosage Adequacy & Transparency
The GABA amount is 500 mg per serving.
Label Purity & Excipient Quality
The Other Ingredients include a flow agent.

Value40

The cost per serving is relatively high for this GABA form.
Price per Effective Dose
The cost per serving is relatively high for this GABA form.
D Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD+ Value
+4
A serving provides 300 mg of magnesium at a moderate cost. It uses 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 stated calcium amount is 0 mg.
Elemental Yield Transparency
The label states 300 mg of elemental magnesium per serving.
Therapeutic Dosage Alignment
300 mg per serving provides a stated amount of magnesium.
Synergistic Formulation Logic
The stated calcium amount is 0 mg.

Value50

The serving cost is moderate; the magnesium form also matters when weighing its value.
Price Per Elemental Quality
The serving cost is moderate; the magnesium form also matters when weighing its value.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Antenatal magnesium sulfate and neuroprotection.
    Doyle LW · Current opinion in pediatrics · 2012
    Meta-analysis6,145 participants5 studies pooledBrain Health forMagnesium
  2. No. 376-Magnesium Sulphate for Fetal Neuroprotection.
    Magee LA; De Silva DA; Sawchuck D; Synnes A; von Dadelszen P · Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC · 2020
    Guideline / consensus4,446 participantsBrain Health forMagnesium
  3. Magnesium Sulfate Before Preterm Birth for Neuroprotection: An Updated Cochrane Systematic Review.
    Shepherd ES; Goldsmith S; Doyle LW; Middleton P; Marret S; Rouse DJ; Pryde P; Wolf HT; Crowther CA · Obstetrics and gynecology · 2024
    Systematic review5,917 participants6 studies pooledBrain Health forMagnesium
  4. Magnesium sulphate for fetal neuroprotection at imminent risk for preterm delivery: a systematic review with meta-analysis and trial sequential analysis.
    Wolf HT; Huusom LD; Henriksen TB; Hegaard HK; Brok J; Pinborg A · BJOG : an international journal of obstetrics and gynaecology · 2020
    Meta-analysis5,917 participants6 studies pooledBrain Health forMagnesium
  5. Magnesium sulfate and fetal neuroprotection: overview of clinical evidence.
    Chollat C; Marret S · Neural regeneration research · 2020
    Narrative reviewBrain Health forMagnesium
  6. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsBrain Health Cognitive Support Sleep Support forTheanine
  7. 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.
    Evans M; McDonald AC; Xiong L; Crowley DC; Guthrie N · Neurology and therapy · 2021
    Randomized trialBrain Health Stress Relief forTheanine
  8. 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.
    Payne ER; Aceves-Martins M; Dubost J; Greyling A; de Roos B · Nutrition reviews · 2025
    Meta-analysis50 studies pooledBrain Health Cognitive Support Mental Focus forTheanine
  9. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
    Foxe JJ; Morie KP; Laud PJ; Rowson MJ; de Bruin EA; Kelly SP · Neuropharmacology · 2012
    Randomized trial27 participantsBrain Health Cognitive Support forTheanine
  10. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study.
    Baba Y; Inagaki S; Nakagawa S; Kaneko T; Kobayashi M; Takihara T · Journal of medicinal food · 2021
    Randomized trialBrain Health Mental Focus Productivity Boost forTheanine
  11. Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
    Del Gobbo LC; Imamura F; Wu JH; de Oliveira Otto MC; Chiuve SE; Mozaffarian D · The American journal of clinical nutrition · 2013
    Meta-analysis313,041 participants16 studies pooledCardiovascular Support forMagnesium
  12. Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
    Qu X; Jin F; Hao Y; Li H; Tang T; Wang H; Yan W; Dai K · PloS one · 2013
    Meta-analysis532,979 participants19 studies pooledCardiovascular Support forMagnesium
  13. Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
    Zhao L; Hu M; Yang L; Xu H; Song W; Qian Y; Zhao M · Journal of cardiovascular pharmacology · 2020
    Meta-analysis544,581 participants18 studies pooledCardiovascular Support Heart Health forMagnesium
  14. Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
    Norouzzadeh M; Rashedi MH; Mahdavi-Mazdeh G; Kosari A; Shahinfar H · Current atherosclerosis reports · 2026
    Meta-analysisCardiovascular Support Heart Health forMagnesium
  15. Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.
    Xiong J; He T; Wang M; Nie L; Zhang Y; Wang Y; Huang Y; Feng B; Zhang J; Zhao J · Journal of nephrology · 2020
    Meta-analysis200,934 participants20 studies pooledCardiovascular Support forMagnesium
  16. Taurine Supplementation Lowers Blood Pressure and Improves Vascular Function in Prehypertension: Randomized, Double-Blind, Placebo-Controlled Study.
    Sun Q; Wang B; Li Y; Sun F; Li P; Xia W; Zhou X; Li Q; Wang X; Chen J; Zeng X; Zhao Z; He H; Liu D; Zhu Z · Hypertension (Dallas, Tex. : 1979) · 2016
    Randomized trial120 participantsCardiovascular Support Heart Health forTaurine
  17. Taurine ameliorates blood pressure and vascular function in patients with type 2 diabetes: Randomized, double-blind, placebo-controlled trial.
    Li Y; Wang Q; Liu Y; Li Q; Xia W; Lin S; Yang Q; Scholze A; Zhao Z; He H; Zhang H; Yan Z; Tepel M; Mu H; Zhu Z; Liu D · iScience · 2025
    Randomized trial165 participantsCardiovascular Support Heart Health forTaurine
  18. Taurine reduces the risk for metabolic syndrome: a systematic review and meta-analysis of randomized controlled trials.
    Tzang CC; Chi LY; Lin LH; Lin TY; Chang KV; Wu WT; Özçakar L · Nutrition & diabetes · 2024
    Meta-analysis1,024 participants25 studies pooledCardiovascular Support forTaurine
  19. Effects of Oral Taurine Supplementation on Cardiometabolic Risk Factors: A Meta-analysis and Systematic Review of Randomized Clinical Trials.
    Nie Z; Liu Y; Zhang M; Wu C; Cao Q; Xu J; Zheng Y; Min Z; Zhang W; Han S · Nutrition reviews · 2025
    Meta-analysis34 studies pooledCardiovascular Support Everyday Health forTaurine
  20. The effects of taurine supplementation on glycemic control and serum lipid profile in patients with type 2 diabetes: a randomized, double-blind, placebo-controlled trial.
    Maleki V; Alizadeh M; Esmaeili F; Mahdavi R · Amino acids · 2021
    Randomized trial45 participantsCardiovascular Support forTaurine