🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size
60 Servings
Amino acid/Protein Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

Calcium
126 mg (10% DV)
200 mg
📊 Market median: 100.0mg (116 products) 📚 15 studies (Tier A: 0, B: 3)
This product: 200mg

Other Ingredients

Dicalcium Phosphate Gelatin Silica Cellulose Magnesium Stearate

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (100% of products) Structure/Function (90% of products) Nutrient (61% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Directions: for adults, take two (2) capsules once daily as needed or at bedtime as 5-HTP may produce drowsiness. If you experience stomach sensitivity, take with food.

⚠️ Warnings & Precautions

Warning: Not intended for use by pregnant or nursing women. If you are taking medications, including anti-depressants or drugs with central nervous system or serotonergic activity, or have any medical condition, including mental health or gastrointestinal concerns, consult your doctor before use.

If you are taking medications, including anti-depressants or drugs with central nervous system or serotonergic activity, or have any medical condition, including mental health or gastrointestinal concerns, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. Do not drive, operate machinery or consume alcohol when taking this product.

Not intended for use by persons under the age of 18. Keep out of reach of children.

Do not use if seal under cap is broken or missing.

🧪 Formulation Notes

Peak X free

Promotes a calm and relaxed mood

No artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no milk, no lactose, no soy, no gluten, no wheat, no yeast, no fish. Sodium free.

Additional Information

Puritan's Pride supplements are produced from the finest raw materials under stringent quality control standards. State-of-the-arts manufacturing and packaging facilities ensure you the highest quality nutritional supplements money can buy. When it comes to your health...choose the best.

Store at room temperature.

QA Quality Assured

Product Details

UPC / SKU 0 74312 15317 4
DSLD Entry Date 2023-06-22
Product Type Amino acid/Protein
Form Capsule
DSLD ID 286448
Data Updated 2026-04-11

Research Evidence

29 Research Sources
48 Avg Quality Score
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
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2001
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2002
B The impact of tryptophan supplementation on sleep quality: a systematic review, meta-analysis, and meta-regression
Meta Analysis Nutrition reviews 2022
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
C The association between tryptophan levels and postpartum mood disorders: a systematic review and meta-analysis
Meta Analysis BMC psychiatry 2022
C A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
Systematic Review Journal of dietary supplements 2021
C Comparison between Acupuncture and Nutraceutical Treatment with Migratens® in Patients with Fibromyalgia Syndrome: A Prospective Randomized Clinical Trial.
Rct Nutrients
C Intake of Lactiplantibacillus plantarum HEAL9 Improves Cognition in Moderately Stressed Subjects: A Randomized Controlled Study.
Rct Nutrients
C Are tryptophan and 5-hydroxytryptophan effective treatments for depression? A meta-analysis
Meta Analysis The Australian and New Zealand journal of psychiatry 2002
View all evidence for Tryptophan →

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