$38.87 $0.43 per serving
Product analysis
PureBalance Seratonin may offer modest support for calm attention through theanine and rhodiola. The proprietary blend is not fully identified, making it difficult to judge exactly what you are choosing.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality27
Theanine and rhodiola forms are not clearly disclosed, limiting quality comparisons. The named vitamin D and 5-HTP sources do not resolve the uncertainty about the whole blend.
Ingredient Transparency62
Ingredient amounts are disclosed, but several forms remain unspecified. The proprietary blend does not identify its individual components, leaving a meaningful gap in what it contains.
Value For Money24
The serving looks relatively expensive for its 5-HTP, theanine and rhodiola contributions. Limited price information for vitamin D prevents a complete value comparison.
Customer Satisfaction74
Buyer ratings are positive across a large number of reviews. That supports a positive picture of satisfaction, while reviews do not establish health benefits.
Product Focus40
The clearest aim is modest support for attention under stress. Low theanine exposure and an unidentified rhodiola preparation limit confidence in the expected benefit.
- Format
Capsule - Container
- 90 Capsule(s)
- Per serving
- $0.43
- Customer rating
- 4.3 · 1,334 ratings
Goals
Impact
Moderate effect
Vitamin D · 6.68 mcgTheanine · 67 mg
Theanine and rhodiola relate mainly to stress-associated aspects of mental performance. The 67 mg theanine amount is below the 200 mg exposure in the supplied small trial, and the 120 mg rhodiola preparation is unidentified, so expectations for improved cognition should remain modest.
How this product is rated for Cognitive Support
Ingredient fit61
Cognitive ingredients share the formula with ingredients aimed at other needs. The relevant amounts provide limited exposure support.
Goal fit
Cognitive ingredients share the formula with ingredients aimed at other needs.
Dose adequacy
The relevant amounts provide limited exposure support.
Pathways14
Stress and arousal regulation is the strongest supported mechanism, with limited coverage. No cognitive mechanism reaches the saved coverage target.
Depth
Stress and arousal regulation is the strongest supported mechanism, with limited coverage.
Breadth
No cognitive mechanism reaches the saved coverage target.
Evidence69
Theanine provides the strongest evidence contribution among the ingredients counted at a sufficient amount. Its support remains specific to the supplied cognitive findings. Some counted preparations match the studied forms; Rhodiola remain unmatched.
Evidence strength
Theanine provides the strongest evidence contribution among the ingredients counted at a sufficient amount. Its support remains specific to the supplied cognitive findings.
Studied preparation
Some counted preparations match the studied forms; Rhodiola remain unmatched.
Formulation logic100
The counted ingredients can contribute independently or have their required partner. No configured ingredient conflict was identified in the supplied findings. 2 of 2 counted ingredients meet the saved minimum exposure threshold.
Partner coverage
The counted ingredients can contribute independently or have their required partner.
Conflicts
No configured ingredient conflict was identified in the supplied findings.
Effective doses
2 of 2 counted ingredients meet the saved minimum exposure threshold.
Impact
Moderate effect
Vitamin D · 6.68 mcgTheanine · 67 mg
L-theanine at 67 mg may modestly support selective attention, although standalone results are mixed. Rhodiola at 120 mg relates to fatigue and stress resilience, with findings that depend on the extract used.
How this product is rated for Mental Focus
Ingredient fit63
Focus share 80.0 from 2 credited ingredients and 1 off-goal actives (5-HTP); link focus 76.2 from 3 linked goals. Goal focus = 70% × share + 30% × link focus The saved amount assessment is partial; unresolved individual amounts limit the assessed contribution.
Goal fit
Focus share 80.0 from 2 credited ingredients and 1 off-goal actives (5-HTP); link focus 76.2 from 3 linked goals. Goal focus = 70% × share + 30% × link focus
Dose adequacy
The saved amount assessment is partial; unresolved individual amounts limit the assessed contribution.
Pathways14
The strongest assessed area is stress and fatigue resilience, with limited coverage. 0 of 3 target areas meet the saved coverage threshold.
Depth
The strongest assessed area is stress and fatigue resilience, with limited coverage.
Breadth
0 of 3 target areas meet the saved coverage threshold.
Evidence70
Theanine is the strongest evidence contributor at an eligible amount in the saved findings. Some eligible preparations match those accepted as studied; Rhodiola do not.
Evidence strength
Theanine is the strongest evidence contributor at an eligible amount in the saved findings.
Studied preparation
Some eligible preparations match those accepted as studied; Rhodiola do not.
Formulation logic89
Missing a partner: Theanine. No configured ingredient conflicts were identified in the supplied facts. 2 of 2 assessed ingredients meet the saved minimum amount threshold.
Partner coverage
Missing a partner: Theanine.
Conflicts
No configured ingredient conflicts were identified in the supplied facts.
Effective doses
2 of 2 assessed ingredients meet the saved minimum amount threshold.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin D3 (Cholecalciferol) | 6.68 mcg | |
L-5-Hydroxytryptophan (Griffonia simplicifolia) | 33 mg | |
L-Theanine | 67 mg | |
Relora Proprietary Blend | 250 mg | |
Rhodiola root extract | 120 mg |
Theanine · 67 mg OverallScore70
Each serving provides 67 mg of L-theanine, a modest amount. The whole-product cost works out to about $0.64 per 100 mg of theanine.
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
The ingredient is identified as L-theanine. The saved facts do not identify a branded form or a purity claim.
Isomer Specificity (L-Theanine)
The ingredient is identified as L-theanine.
Branded Forms & Purity Standards
The available facts do not identify a branded form or a purity claim.
Dose, Safety & Label Transparency86
The serving individually discloses 67 mg of L-theanine, a modest amount.
Theanine Dosage Efficacy
The serving provides 67 mg, a modest amount of L-theanine.
Label Transparency & Blends
The L-theanine amount is individually disclosed as 67 mg per serving.
Value20
Based on the cost of whole-product servings, 100 mg of theanine works out to about $0.64.
Price per 100mg L-Theanine
Based on the cost of whole-product servings, 100 mg of theanine works out to about $0.64.
Rhodiola · 120 mg OverallScore71
Each serving contains 120 mg of Rhodiola rosea root extract. The recorded rosavin content is 5%; the supplied facts do not show a salidroside percentage.
How this ingredient is rated
Composition and Label Disclosure68
The species is identified as Rhodiola rosea. The recorded rosavin content is 5%; the supplied facts do not show a salidroside percentage.
Declared Rhodiola Marker Profile
The recorded rosavin content is 5%; the supplied facts do not show a salidroside percentage.
Rhodiola Species Detail
The species is identified as Rhodiola rosea.
Composition and Label Disclosure100
The selected serving declares 120 mg of Rhodiola rosea root extract. The evaluation records no flagged artificial additives or flow agents; it does not test purity or contaminants.
Rhodiola Amount Disclosure
The selected serving declares 120 mg of Rhodiola rosea root extract.
Other Ingredients Disclosure
The evaluation records no flagged artificial additives or flow agents; it does not test purity or contaminants.
Commercial Price and Usability20
Based on the whole-product price, 200 mg of rhodiola corresponds to about $0.72.
Cost per 200 mg Declared Rhodiola
Based on the whole-product price, 200 mg of rhodiola corresponds to about $0.72.
5-HTP (Griffonia simplicifolia) · 33 mg OverallScore44
A serving provides 33 mg of 5-HTP from Griffonia simplicifolia. The saved facts record general warnings but no specific warning about serotonin-affecting medicines.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
The saved facts identify Griffonia simplicifolia as the source, but do not record a 5-HTP standardization percentage.
Botanical Source & Standardization
The saved facts identify Griffonia simplicifolia as the source, but do not record a 5-HTP standardization percentage.
Dose, Safety & Label Transparency39
A serving provides 33 mg of 5-HTP, a relatively small amount in this comparison. The saved facts record general warnings but no specific warning about serotonin-affecting medicines.
Dosage Potency & Range
A serving provides 33 mg of 5-HTP, a relatively small amount in this comparison.
Safety Warnings & Label Clarity
The saved facts record general warnings but no specific warning about serotonin-affecting medicines.
Value0
The scaled whole-product cost is about $1.31 per 100 mg of 5-HTP, high for the amount supplied.
Price per 100mg 5-HTP
The scaled whole-product cost is about $1.31 per 100 mg of 5-HTP, high for the amount supplied.
Alternative products
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Evidence-based efficacy of adaptogens in fatigue, and molecular mechanisms related to their stress-protective activity.
- Effects of a Rhodiola rosea extract on mental resource allocation and attention: An event-related potential dual task study.
- Central additive effect of Ginkgo biloba and Rhodiola rosea on psychomotor vigilance task and short-term working memory accuracy.
- Clinical evidence for the adaptogenic effects of Withania somnifera and Rhodiola rosea - A systematic review with molecular interpretation of psychometric outcomes.
- A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract shr-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue.
- Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
- 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.
- Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
- Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
- Acute effects of theanine, caffeine and theanine-caffeine combination on attention.
- The impact of vitamin D food fortification and health outcomes in children: a systematic review and meta-regression.
- Vitamin D Supplementation Improves Cognitive Function Through Reducing Oxidative Stress Regulated by Telomere Length in Older Adults with Mild Cognitive Impairment: A 12-Month Randomized Controlled Trial.
- Effects of vitamin D supplementation on cognitive function and blood Aβ-related biomarkers in older adults with Alzheimer's disease: a randomised, double-blind, placebo-controlled trial.
- Dietary vitamin D intake and 2-year changes in cognitive function in older adults with overweight or obesity and metabolic syndrome.
- Gestational vitamin D concentration and child cognitive development: a longitudinal cohort study in the Environmental influences on Child Health Outcomes Program.
- The Effect of Short-Term Rhodiola rosea Supplementation on Simulated Game Time, Perceived Fatigue, and Performance in Basketball Players.
- Effects of Rhodiola rosea on Physical and Decision-Making Performance in Football Players: A Randomised Controlled Trial.
- Combined Effects of Rhodiola Rosea and Caffeine Supplementation on Straight Punch Explosive Power in Untrained and Trained Boxing Volunteers: A Synergistic Approach.
- Rhodiola rosea in Subjects with Prolonged or Chronic Fatigue Symptoms: Results of an Open-Label Clinical Trial.
- Combined Rhodiola rosea and eccentric training boost endurance performance and lower-limb reactive strength in recreationally active women.