$36.00 $0.60 per serving
Product analysis
5-HTP 100 mg is intended for mood and relaxation, but noticeable everyday benefits remain uncertain.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality24
The vitamin C form is named, while the other ingredient forms are unspecified. Those gaps leave the preparation quality of the main ingredients uncertain.
Ingredient Transparency72
All listed amounts are disclosed, but only the vitamin C form is named. The main ingredient preparations are less clearly described.
Value For Money34
The serving price offers limited value for both 5-HTP and glycine. Value for the added vitamins remains uncertain, so their inclusion does not establish a better buy.
Customer Satisfaction72
Customer ratings are generally positive, with hundreds of opinions available. Ratings describe satisfaction without proving health benefits or safety.
Product Focus62
Mood and relaxation give the formula a recognizable purpose, but the expected effects remain uncertain. The small glycine amount adds little support for sleep quality.
- Format
Capsule - Container
- 60 Capsule(s)
- Per serving
- $0.60
- Customer rating
- 4.7 · 127 ratings
Goals
Impact
Highest effect
Vitamin B6 · 3 mg5-HTP · 100 mg
Impact
Moderate effect
Glycine · 440 mgVitamin B6 · 3 mgVitamin C · 100 mg
Impact
Moderate effect
Glycine · 440 mg
Impact
Moderate effect
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ascorbic Acid) | 100 mg | |
Vitamin B6 | 3 mg | |
5-HTP | 100 mg | |
Glycine | 440 mg |
Glycine · 440 mg OverallScore48
The serving provides 440 mg of glycine, below the amount used for sleep quality. The product costs high relative to its glycine content, using the full serving price. A GMP manufacturing claim is recorded. Ordinary excipients or capsule materials are recorded.
How this ingredient is rated
Active Ingredient Quality & Bioavailability60
A GMP manufacturing claim is recorded.
Glycine Sourcing and Purity Standards
A GMP manufacturing claim is recorded.
Dose, Safety & Label Transparency46
The serving provides 440 mg of glycine, below the amount used for sleep quality. Ordinary excipients or capsule materials are recorded.
Clinically Relevant Dosage
The serving provides 440 mg of glycine, below the amount used for sleep quality.
Label Transparency and Yield Disclosure
The glycine amount per serving is stated.
Clean Label and Excipient Quality
Ordinary excipients or capsule materials are recorded.
Value30
The product cost per gram of glycine is high; this attributes the whole serving price to glycine.
Cost Efficiency per 1,000mg of Glycine
The product cost per gram of glycine is high; this attributes the whole serving price to glycine.
5-HTP · 100 mg OverallScore62
A serving provides 100 mg of 5-HTP, with a high product cost relative to the amount. The botanical source of the 5-HTP is not specified. The label includes a warning about serotonin-related medication interactions.
How this ingredient is rated
Active Ingredient Quality & Bioavailability40
The botanical source of the 5-HTP is not specified.
Botanical Source & Standardization
The botanical source of the 5-HTP is not specified.
Dose, Safety & Label Transparency100
A serving provides 100 mg of 5-HTP. The label includes a warning about serotonin-related medication interactions.
Dosage Potency & Range
A serving provides 100 mg of 5-HTP.
Safety Warnings & Label Clarity
The label includes a warning about serotonin-related medication interactions.
Value30
The product cost is high relative to its 5-HTP amount.
Price per 100mg 5-HTP
The product cost is high relative to its 5-HTP amount.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Comparative study of efficacy of l-5-hydroxytryptophan and fluoxetine in patients presenting with first depressive episode.
- The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial.
- Effects of 5-hydroxytryptophan on distinct types of depression: a systematic review and meta-analysis.
- Tryptophan and 5-hydroxytryptophan for depression.
- 5-Hydroxytryptophan (5-HTP) and a MAOI (nialamide) in the treatment of depressions. A double-blind controlled study.
- [Augmentation of antipsychotics with glycine may ameliorate depressive and extrapyramidal symptoms in schizophrenic patients--a preliminary 10-week open-label study].
- Markers of glutamate signaling in cerebrospinal fluid and serum from patients with bipolar disorder and healthy controls.
- Erythrocyte glycine in depressed, hypomanic, and euthymic bipolar patients treated with lithium carbonate.
- High Dose Vitamin B6 Reduces Depression Symptoms.
- Can Vitamin B6 Help to Prevent Postpartum Depression? A Randomized Controlled Trial.
- Associations of Dietary Intake of Vitamin B6 and Plasma Pyridoxal 5'-Phosphate Level With Depression in US Adults: Findings From NHANES 2005-2010.
- Associations of dietary B vitamins intakes with depression in adults.
- Impact of vitamin B6 status on psychological distress in a longitudinal study of HIV-1 infection.
- The impact of 5-hydroxytryptophan supplementation on sleep quality and gut microbiota composition in older adults: A randomized controlled trial.
- The effect of glycine administration on the characteristics of physiological systems in human adults: A systematic review.
- New therapeutic strategy for amino acid medicine: glycine improves the quality of sleep.
- The effects of glycine on subjective daytime performance in partially sleep-restricted healthy volunteers.
- Efficacy of vitamins B1 and B6 as an adjunctive therapy to lithium in bipolar-I disorder: A double-blind, randomized, placebo-controlled, clinical trial.
- Therapeutic effects of magnesium and vitamin B6 in alleviating the symptoms of restless legs syndrome: a randomized controlled clinical trial.
- Effects of poly-gamma-glutamic acid and vitamin B6 supplements on sleep status: a randomized intervention study.