5-HTP 100 mg®

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.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

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

Not Present

• 

  5-HTP mg Metabolic Maintenance

  Covenant Health Products4.7(98)

  $46.00
• 

  Metabolic Maintenance - 5-htp 100 mg 60 caps

  Target4.7(98)

  $26.50
• 

  METABOLIc Maintenance Anxiety Control 90 Capsules

  iHerb4.8(147)

  $36.00
• 

  5-HTP mg Pure Encapsulations

  Pure Prescriptions4.8(83)

  $61.00
• 

  MRM 5-HTP 100 mg 60 Vegan Capsules

  PureFormulas.com4.5(14)

  $19.99
• 

  Natrol 5-HTP Fast Dissolve Mixed Berry 30 Tablets

  Vitacost.com4.5(119)

  $15.59
• 

  Nutricost 5-HTP Capsules

  Target4.7(2500)

  $19.95
• 

  GNC 5-HTP 100mg 30 Count Capsules

  GNC4.3(6)

  $26.99

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• British Supplements

  3.4 (274)

  Vitamin & supplements store

  34, New House, 67-68 Hatton Garden, London EC1N 8JY, United Kingdom

  Directions+44 7768 405406

• Love Life Supplements

  4.8 (87)

  Vitamin & supplements store

  wellington house, East Rd, Petersfield, Cambridge CB1 1BH, United Kingdom

  Directions+44 800 122 3351

• R Supplements LTD

  5.0 (89)

  Vitamin & supplements store

  27 Colinglen Rd, Dunmurry, Belfast BT17 0LR, United Kingdom

  Directions+44 7857 830493

• Natural Vitamins IKE

  4.9 (16)

  Wholesaler

  Agiou Konstantinou ke Elenis 15, Ag. Dimitrios 173 42, Greece

  Directions+30 21 0965 0594

• +boost Malta

  4.8 (109)

  Vitamin & supplements store

  Boost, Sqaq il-Għoġla, Birkirkara BKR 9038, Malta

  Directions+356 2149 9929

• Power Body Nutrition Ltd

  4.4 (41)

  Vitamin & supplements store

  11 Chessingham Park, Dunnington, York YO19 5SE, United Kingdom

  Directions+44 1904 486330

• Just Vitamins

  3.9 (23)

  Vitamin & supplements store

  Ind. Estate, Falkland Cl, Charter Ave, Coventry CV4 8AU, United Kingdom

  Directions

• Metagenics UK

  4.6 (202)

  Vitamin & supplements store

  Botany Business Park, Macclesfield Rd, Whaley Bridge, High Peak SK23 7DQ, United Kingdom

  Directions+44 800 043 5777

• The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial

  S Li, CN Sutanto, X Xia, JE Kim - Nutrients, 2025 - mdpi.com

  … and mental health regulation [21,23,24,25]. Given that the participants in this study were cognitively healthy and had not previously taken 5-HTP supplementation, 100 mg was selected …

  20255 citations

• The Effects of 5-HTP on Body Composition: An 8-Week Preliminary RCT

  C Evans, V Mekhail, J Curtis, P Czartoryski… - … Dietary Supplements, 2023 - Taylor & Francis

  … suggests that 5-HTP intake … 5-HTP in exercise-trained individuals. Therefore, the purpose of this investigation was to determine the effects of supplementing with 100 mg daily of 5-HTP …

  202310 citations

• The mechanism of secretion and metabolism of gut-derived 5-hydroxytryptamine

  N Liu, S Sun, P Wang, Y Sun, Q Hu… - International journal of …, 2021 - mdpi.com

  … The kynurenine and 5-HT pathways are two main metabolic routes for Trp metabolism in … , plays a key role in the conversion of Trp to 5-hydroxytryptophan (5-HTP) [1,35]. 5-HT is rapidly …

  2021272 citations

• Effect of 5-hydroxytryptophan on fatigue in quiescent inflammatory bowel disease: a randomized controlled trial.

  M Truyens, T Lobatón, M Ferrante… - …, 2022 - research.dial.uclouvain.be

  … treatment period with either oral 5-HTP (100 mg) or placebo twice … , without intermediate washout (Supplementary Figure 2). … with 5-HTP led to a significant increase in serum 5-HTP and …

  202250 citations

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

  CN Sutanto, X Xia, CW Heng, YS Tan, DPS Lee, J Fam… - Clinical Nutrition, 2024 - Elsevier

  … (5-HTP) is known as a precursor of the sleep regulating neurotransmitter and hormone. However, efficacy of 5-HTP supplementation for … the impact of 5-HTP supplementation on sleep …

  202459 citations

• 5-Hydroxytryptophan (5-HTP): Natural occurrence, analysis, biosynthesis, biotechnology, physiology and toxicology

  ME Maffei - International journal of molecular sciences, 2020 - mdpi.com

  … This review describes the natural sources of 5-HTP, which represent the raw material from which 5-HTP may be extracted and purified for its use in drugs and dietary supplements, as …

  2020329 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-11-22. DSLD Label ID: 274835. 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.