Optimized Tryptophan Plus

Suggested Use

Read the entire label and follow the directions carefully prior to use.Directions: Take up to three (3) capsules all at once before bedtime; or one capsule on an empty stomach before each meal; or as recommended by a healthcare practitioner. For maximum absorption take with a small amount of carbohydrate; such as diluted juice. Best if taken separately from protein or amino acids.

• 

  Life Extension Tryptophan Plus Capsules

  iHerb4.6(626)

  $24.00
• 

  Life Extension L- Tryptophan 500 mg 90 Capsules

  Life Extension4.7(496)

  $24.75
• 

  Optimized Tryptophan Plus

  Pure Prescriptions4.6(626)

  $32.00
• 

  Life Extension Enhanced Stress Relief 30 Capsules

  Life Extension4.6(426)

  $21.00
• 

  Tryptophan plus and Tryptophan with melatonin pack

  Naturitas

  $29.07
• 

  Tryptophan

  Sarasota IV Lounge

  $25.00
• 

  Tryptophan New

  biotikon.eu

  $20.40
• 

  Aminoplus Tryptophan plus Kapseln

  apohealth.de5.0(2)

  $28.11

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.

• N101

  5.0 (419)

  Vitamin & supplements store

  6252 Romaine St, Los Angeles, CA 90038

  Directions(323) 467-6123

• MyVites

  5.0 (1)

  Vitamin & supplements store

  4645 Hollywood Blvd #1, Los Angeles, CA 90027

  Directions(323) 661-1168

• Peter Gillham's Nutrition Center

  4.3 (16)

  Vitamin & supplements store

  4873 Fountain Ave, Los Angeles, CA 90029

  Directions(323) 667-1894

• Get Yok'd Nutrition

  4.9 (262)

  Vitamin & supplements store

  3218 Galleria Way, Glendale, CA 91210

  Directions(818) 638-5260

• LFTR SUPPLEMENTS

  5.0 (20)

  Vitamin & supplements store

  2421 Yates Ave, Commerce, CA 90040

  Directions(818) 476-8420

• H CLUB

  5.0 (92)

  Vitamin & supplements store

  808 S Vermont Ave, Los Angeles, CA 90005

  Directions(213) 306-0297

• Route 66 Sports Nutrition

  4.6 (31)

  Vitamin & supplements store

  8529 Santa Monica Blvd, West Hollywood, CA 90069

  Directions(310) 358-0150

• The Vitamin Shoppe

  4.4 (246)

  Vitamin & supplements store

  101 N Fairfax Ave, Los Angeles, CA 90036

  Directions(323) 936-6839

• Cutting back on the essentials: Can manipulating intake of specific amino acids modulate health and lifespan?

  HM Brown-Borg, R Buffenstein - Ageing research reviews, 2017 - Elsevier

  … health- and lifespan and the mechanisms involved. Rodent diets containing either lower methionine content, or tryptophan… restricted intake of methionine and tryptophan are due to their …

  201784 citations

• Exercise training restores longevity‐associated tryptophan metabolite 3‐hydroxyanthranilic acid levels in middle‐aged adults

  N Joisten, M Reuter, F Rosenberger… - Acta …, 2025 - Wiley Online Library

  … enzymes as potential targets for healthy aging or lifespan extension, such as tryptophan 2,3-… supplementation investigated in the mouse model was more effective in lifespan extension …

  20253 citations

• L-Tryptophan: Basic Metabolic Functions, Behavioral Research and Therapeutic Indications

  DM Richard, MA Dawes, CW Mathias… - … of Tryptophan …, 2009 - journals.sagepub.com

  … -tryptophan, particularly L-tryptophan depletion, and on clinical trials that have been conducted using L-tryptophan supplementation. … changes in healthy adults, tryptophan depletion has …

  2009967 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 adults (n = 35) for the study period did not result in significant changes in serum cytokine …

  2018398 citations

• Harnessing Dietary Tryptophan: Bridging the Gap Between Neurobiology and Psychiatry in Depression Management

  AC Chehadi, E Pereira de Lima… - International Journal of …, 2026 - mdpi.com

  … and glial function, further linking gut health to brain plasticity and cognition [… supplementation [291,292]. By juxtaposing data from acute Trp depletion, non-plant derived supplementation…

  20265 citations

• Nutritional importance of tryptophan for improving treatment in depression and diabetes

  DJ Haleem - 2023 - academic.oup.com

  … The importance of tryptophan supplementation for … for the optimal physiological and mental functions of our body, where bioactive metabolites of tryptophan help improve human health. …

  202314 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-08-23. DSLD Label ID: 232279. 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.