$12.79 $0.51 per serving
Product analysis
Extra Strength Sleep Blackberry Zen may help with sleep timing and settling down for bed. Melatonin can cause sleepiness and slower reactions after taking it, which matters for activities requiring alertness.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
Most preparation details are unspecified, limiting comparisons of ingredient quality. The broader ingredient list does not establish a better absorption profile.
Ingredient Transparency63
All listed amounts are disclosed, making serving sizes easier to compare. Ingredient forms remain unspecified in the main details, limiting closer preparation comparisons.
Value For Money40
The theanine comparison offers moderate value, while the melatonin serving is relatively costly. Value for the accompanying botanicals remains uncertain.
Customer Satisfaction82
Customer ratings are generally favorable across a large body of feedback. Those experiences do not establish better sleep, calmness or next-day performance.
Product Focus62
Melatonin provides the clearest sleep-related role, with more limited support from theanine and the small botanical amounts. Sleepiness and slower reactions make the combination poorly suited to daytime focus.
- Format
Gummy - Container
- 50 Gummy(ies)
- Per serving
- $0.51
- Also available
Sleep Blackberry Zen$16.99- Customer rating
- 4.5 · 4,086 ratings
Goals
Impact
Highest effect
Melatonin · 5 mgTheanine · 100 mg
Impact
Moderate effect
Theanine · 100 mg
Impact
High effect
Theanine · 100 mg
Impact
Lower effect
Theanine · 100 mg
Impact
High effect
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 15 Calorie(s) | |
Total Carbohydrates | 3 Gram(s) | |
Protein | 1 Gram(s) | |
L-Theanine | 100 mg | |
Melatonin | 5 mg | |
Chamomile extract | 17 mg | |
Passionflower extract | 17 mg | |
Lemon Balm extract | 16 mg |
Theanine · 100 mg OverallScore82
Each serving provides 100 mg of L-Theanine, at a high 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 100 mg of L-Theanine, an amount associated with relaxation and focus.
Theanine Dosage Efficacy
At 100 mg per serving, it provides an amount associated with relaxation and focus.
Label Transparency & Blends
The L-Theanine amount is individually stated as 100 mg per serving.
Value50
The full product cost per 100 mg of theanine is high.
Price per 100mg L-Theanine
Using the full product price, the cost per 100 mg of theanine is high.
Melatonin · 5 mg OverallScore36
Each serving provides 5 mg of melatonin at a high cost per serving. It is a moderate amount. No USP, sports, laboratory or GMP certification claim is recorded. The melatonin form is unspecified.
How this ingredient is rated
Active Ingredient Quality & Bioavailability0
No USP, sports, laboratory or GMP certification claim is recorded.
Third-Party Purity Verification
There is no recorded claim of USP, sports, laboratory or GMP certification.
Dose, Safety & Label Transparency75
Each serving contains 5 mg of melatonin.
Physiological Dosing Alignment
The serving provides 5 mg of melatonin.
Value30
The cost per serving is high.
Price Per Serving Efficiency
Each serving costs high.
Alternative products
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Comparative Efficacy, Tolerability, and Acceptability of Donanemab, Lecanemab, Aducanumab, Melatonin, and Aerobic Exercise for a Short Time on Cognitive Function in Mild Cognitive Impairment and Mild Alzheimer's Disease: A Systematic Review and Network Meta-Analysis.
- Melatonin for sleep and cognitive outcomes in older adults with cognitive impairment: a meta-analysis of randomised controlled trials.
- Add-on prolonged-release melatonin for cognitive function and sleep in mild to moderate Alzheimer's disease: a 6-month, randomized, placebo-controlled, multicenter trial.
- Early Oral Melatonin Supplementation Supports White Matter Maturation in Preterm Infants: Neuroprotective Insights of an Antioxidant Molecule.
- Efficacy and Safety of Melatonin in Migraine Prophylaxis: 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.
- 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.
- 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.
- Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials.
- Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial.
- Effects of L-theanine on cognition, mood and sleep: evidence from human trials.
- Time for tea: mood, blood pressure and cognitive performance effects of caffeine and theanine administered alone and together.
- Meta-analysis: melatonin for the treatment of primary sleep disorders.
- Melatonin treatment for age-related insomnia.
- The Effectiveness of Melatonin for Sleep Disturbances in Parkinson' Disease: Systematic Review and Meta-Analysis.
- Nightly treatment of primary insomnia with prolonged release melatonin for 6 months: a randomized placebo controlled trial on age and endogenous melatonin as predictors of efficacy and safety.