$19.99 $0.66 per serving
Product analysis
Double Potency 5-HTP Extra combines ingredients aimed at relaxation, sleep and calmer attention, although the expected effects remain uncertain. Several preparations are unspecified, making it harder to connect the full mixture with findings for particular ingredients.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
Most ingredient forms are unspecified, and part of the mixture cannot be assessed confidently. The quality of the combination therefore remains uncertain.
Ingredient Transparency56
Most amounts are stated, but one is omitted and most forms are unspecified. Disclosure of the combined entry’s contents cannot be established confidently.
Value For Money30
The theanine is relatively expensive for the amount provided. Value for the other relevant ingredients remains uncertain, so the full combination is difficult to justify on value alone.
Customer Satisfaction76
Customer feedback is positive across several hundred ratings. The review volume gives context to satisfaction without proving sleep or mood effects.
Product Focus58
The ingredients have overlapping relaxation, sleep and attention purposes. Evidence is limited, and some amounts are below those used in the relevant trials.
- Format
Softgel - Container
- 60 Softgel(s)
- Per serving
- $0.66
- Customer rating
- 4.6 · 578 ratings
Goals
Impact
High effect
Vitamin B6 · 10 mgMagnesium · 50 mgVitamin D · 12.5 mcg5-HTP · 100 mg
Impact
High effect
Magnesium · 50 mgTheanine · 100 mg
Impact
High effect
Vitamin D · 12.5 mcgMagnesium · 50 mgVitamin B6 · 10 mgTheanine · 100 mg
Impact
Moderate effect
Vitamin B6 · 10 mgMagnesium · 50 mgVitamin D · 12.5 mcgTheanine · 100 mg
Impact
Moderate effect
Vitamin D · 12.5 mcgMagnesium · 50 mg
Theanine Not classified
No linked studies yet.
Impact
Moderate effect
Vitamin B6 · 10 mgMagnesium · 50 mgTheanine · 100 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 15 Calorie(s) | |
Total Fat | 1 Gram(s) | |
Cholesterol | 5 mg | |
Total Carbohydrates | 1 Gram(s) | |
Protein | 1 Gram(s) | |
Vitamin D (Cholecalciferol) | 12.5 mcg | |
Vitamin B6 (Pyridoxine Hydrochloride) | 10 mg | |
Magnesium (Magnesium Citrate) | 50 mg | |
Fish Oil (DHA, EPA) | 800 mg | |
5-HTP (Griffonia simplicifolia) | 100 mg | |
Lemon Balm extract | 100 mg | |
L-Theanine | 100 mg | |
Damiana extract | 75 mg | |
Holy Basil extract (Ursolic Acid) | 75 mg | |
Saffr'active Saffron extract (Saffranal) | 5 mg | |
BioPerine Complex | 3 mg | |
Bioperine Black Pepper extract (Piperine) | 0 NP | |
Ginger extract (Gingerols) | 0 NP |
Theanine · 100 mg OverallScore76
Each serving provides 100 mg of L-theanine, with a high cost per 100 mg. No branded source or additional purity claim is recorded.
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
The ingredient is L-theanine. No branded source or additional purity claim is recorded.
Isomer Specificity (L-Theanine)
The form is L-theanine.
Branded Forms & Purity Standards
No branded source or additional purity claim is recorded.
Dose, Safety & Label Transparency100
Each serving provides 100 mg of L-theanine.
Theanine Dosage Efficacy
Each serving provides 100 mg of L-theanine.
Label Transparency & Blends
The L-theanine amount is stated separately.
Value20
The cost per 100 mg of theanine is high.
Price per 100mg L-Theanine
The cost per 100 mg of theanine is high.
5-HTP (Griffonia simplicifolia) · 100 mg OverallScore74
Each serving supplies 100 mg of 5-HTP; its estimated cost per 100 mg is high. The Griffonia simplicifolia source is named, but its standardization percentage is unclear. The label includes a medication interaction warning. It also contains 100 mg of L-theanine.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
The 5-HTP comes from Griffonia simplicifolia, but its standardization percentage is not given.
Botanical Source & Standardization
The 5-HTP comes from Griffonia simplicifolia, but its standardization percentage is not given.
Dose, Safety & Label Transparency100
Each serving provides 100 mg of 5-HTP. The label includes a warning about serotonin-related medication interactions. It also contains 100 mg of L-theanine.
Dosage Potency & Range
Each serving provides 100 mg of 5-HTP.
Safety Warnings & Label Clarity
The label includes a warning about serotonin-related medication interactions.
Value30
The estimated cost per 100 mg of 5-HTP is high. The estimate assigns the full product cost to 5-HTP and may overstate its cost.
Price per 100mg 5-HTP
The estimated cost per 100 mg of 5-HTP is high. The estimate assigns the full product cost to 5-HTP and may overstate its cost.
Fish Oil (DHA, EPA) · 800 mg OverallScore12
The estimated combined EPA and DHA is 240 mg per serving; their individual amounts are not listed. The estimated cost per gram of EPA and DHA is high, but the actual amounts are uncertain. The oil’s molecular form is not specified.
How this ingredient is rated
Active Ingredient Quality & Bioavailability14
The oil’s molecular form is not specified. No purification method is specified in the available details. Independent testing is not specified in the available details.
Omega-3 Molecular Form
The oil’s molecular form is not specified.
Purification & Filtration Method
No purification method is specified in the available details.
Third-Party Purity & Potency Verification
Independent testing is not specified in the available details.
Source & Sustainability
A qualifying fish source is indicated, but its species is not named in the available details.
Dose, Safety & Label Transparency6
The estimated combined EPA and DHA is 240 mg per serving; their individual amounts are not listed. The estimated EPA and DHA share 30% of the fish oil, with the actual share uncertain.
Total Active Omega-3 Dose (EPA + DHA)
The estimated combined EPA and DHA is 240 mg per serving; their individual amounts are not listed.
Omega-3 Potency & Concentration
The estimated EPA and DHA share 30% of the fish oil, with the actual share uncertain.
EPA & DHA Individual Disclosure
EPA and DHA amounts are not individually listed.
Oxidation Protection (Stabilizers)
A qualifying antioxidant for oil protection is not specified in the available details.
Value20
The estimated cost per gram of EPA and DHA is high, but the actual amounts are uncertain.
Cost Per Gram of Active EPA + DHA
The estimated cost per gram of EPA and DHA is high, but the actual amounts are uncertain.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- 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.
- Vitamin B12, B6, or Folate and Cognitive Function in Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis.
- Relationship between serum pyridoxal 5'-phosphate concentration and cognitive function in older Japanese.
- A randomized, controlled trial to evaluate the efficacy of pyridoxine and ascorbic acid on cognitive function and quality of life in post-menopausal women.
- Lower Plasma Vitamin B-6 is Associated with 2-Year Cognitive Decline in the Boston Puerto Rican Health Study.
- Are Dietary Supplements and Nutraceuticals Effective for Musculoskeletal Health and Cognitive Function? A Scoping Review.
- Vitamin D and brain health: an observational and Mendelian randomization study.
- The association between vitamin D and cognition: a systematic review.
- Vitamin D Status and Rates of Cognitive Decline in a Multiethnic Cohort of Older Adults.
- Vitamin D insufficiency and cognitive impairment in Asians: a multi-ethnic population-based study and meta-analysis.
- Vitamin D status predicts new brain magnetic resonance imaging activity in multiple sclerosis.