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Sleep

product on market Capsule Kion Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

L-Tryptophan, L-Theanine, and PharmaGABA are supported by moderate to strong evidence for promoting relaxation and improving sleep quality. These ingredients work by modulating neurotransmitters in the brain to facilitate sleep onset. Research indicates these compounds are generally well-tolerated and safe for most adults.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Sleep
Open Full PDF View on NIH DSLD →
Details

Label Data

3 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1000 mg
Market median: 500.0mg (70 products)
200 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)
PharmaGABA
1000 mg

Other Ingredients

Hypromellose Rice Flour L-Leucine Bamboo Shoot Extract
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use Take 3 capsules 30 minutes before bed.

Warnings & Precautions

Caution Keep out of reach of children.

Do not use if clear neck seal is broken or missing. Consult your healthcare practitioner before using this product.

Formulation Notes

Fall asleep fast Stay asleep Improve sleep quality

PharmaGABA

Additional Information

Store at room temperature.

Metadata

Product Details

UPC / SKU8 50002 20755 2
DSLD Entry Date2024-03-22
Product TypeOther Combinations
FormCapsule
BrandKion
DSLD ID307266
Data Updated2026-04-11
Research

Research Evidence

29
Research Sources
48
Avg Quality
19
Rct
5
Meta Analysis
3
Systematic Review
2
Clinical Trial
B Prebiotic and probiotic supplementation and the tryptophan-kynurenine pathway: A systematic review and meta analysis
Meta Analysis Neuroscience and biobehavioral reviews 2021 PubMed DOI
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2001 PubMed
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2002 PubMed
B The impact of tryptophan supplementation on sleep quality: a systematic review, meta-analysis, and meta-regression
Meta Analysis Nutrition reviews 2022 PubMed DOI
B No effects of acute tryptophan depletion on anxiety or mood in weight-recovered female patients with anorexia nervosa
Rct European archives of psychiatry and clinical neuroscience 2023 PubMed DOI
C The association between tryptophan levels and postpartum mood disorders: a systematic review and meta-analysis
Meta Analysis BMC psychiatry 2022 PubMed DOI
C A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
Systematic Review Journal of dietary supplements 2021 PubMed DOI
C Comparison between Acupuncture and Nutraceutical Treatment with Migratens® in Patients with Fibromyalgia Syndrome: A Prospective Randomized Clinical Trial.
Rct Nutrients PubMed DOI
C Intake of Lactiplantibacillus plantarum HEAL9 Improves Cognition in Moderately Stressed Subjects: A Randomized Controlled Study.
Rct Nutrients PubMed DOI
C Are tryptophan and 5-hydroxytryptophan effective treatments for depression? A meta-analysis
Meta Analysis The Australian and New Zealand journal of psychiatry 2002 PubMed
View all evidence for Tryptophan →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.