Hydroxy Tryptophan®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Serving Size: 1–4 Capsule(s) · 1 per day

% of Daily Value is based on a 2,000 calorie diet.

• 

  5-HTP 100% Pure 5-Hydroxy Tryptophan Powder

  Prescribed For Life

  $164.99
• 

  Solaray 5-HTP

  Solaray4.3(18)

  $22.69
• 

  Thorne Research 5-HTP

  Mayo Clinic Store4.6(690)

  $39.00
• 

  NOW 5-HTP mg

  Walmart - DailyVita4.7(14000)

  $18.88
• 

  5-Hydroxy-L-tryptophan

  Adipogen Life Sciences

  $32.99
• 

  Nature's Sunshine 5-HTP Power 60 Capsules

  Nature's Sunshine Products5.0(20)

  $37.30
• 

  Sundance 5-HTP 100mg Capsules

  Sundance Vitamins5.0(2)

  $6.99
• 

  NOW Foods 5-HTP 50 mg 30 Capsules

  Walmart - iHerb4.7(14000)

  $5.61Lowest

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• How important is tryptophan in human health?

  J Kałużna-Czaplińska, P Gątarek… - Critical reviews in …, 2019 - Taylor & Francis

  … have suggested that Trp supplementation in a daily diet … of a breakfast rich in Trp, regular morning sun exposure, and … group was supplementation by L-5-hydroxytryptophan. Within a …

  2019398 citations

• Serotonin, Kynurenine, and Indole Pathways of Tryptophan Metabolism in Humans in Health and Disease

  M Holeček - Nutrients, 2026 - mdpi.com

  … adverse effects of TRP supplementation, the therapeutic use of various TRP metabolites, and the … options for TRP-targeted therapies and their integration into new therapeutic strategies. …

  202613 citations

• The therapeutic potential of diet on immune-related diseases: based on the regulation on tryptophan metabolism

  J Lin, D Sun-Waterhouse, C Cui - Critical Reviews in Food Science …, 2022 - Taylor & Francis

  … pathway, TRP is initially converted into 5-hydroxytryptophan (… acid, TRP supplement was necessary for human health. … the administration of pure TRP is limited, and TRP in organisms is …

  202257 citations

• Comment on “The impact of 5-hydroxytryptophan supplementation on sleep quality and gut microbiota composition in older adults: A randomized controlled trial” …

  ITSA da Silva, DE da Silva Fidelis… - Clinical …, 2024 - clinicalnutritionjournal.com

  … health. Finally, we emphasize the significant contribution of Sutanto et al. to the scientific community, particularly for offering new perspectives on improving sleep quality in older adults. …

  20241 citations

• Tryptophan in nutrition and health

  B Poeggeler, SK Singh, MA Pappolla - International journal of molecular …, 2022 - mdpi.com

  … and health (Figure 1). The latest developments with the rapid progress in tryptophan research are … [11], the effects of tryptophan supplementation on milk protein synthesis and energy …

  202223 citations

• Analysis, nutrition, and health benefits of tryptophan

  M Friedman - International Journal of Tryptophan Research, 2018 - journals.sagepub.com

  … For example, it has been reported that the dietary supplementation of tryptophan to healthy … predictors, suggesting that tryptophan might represent a new biomarker associated with …

  2018402 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2018-01-25. DSLD Label ID: 82469. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.