Optimized Tryptophan Plus®
Botanicals with NutrientsBrand: Life Extension
Net Contents
90 Vegetarian Capsule(s)
Serving Size
3 Vegetarian Capsule(s)
Servings Per Container
30
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 37870 17219 2
Product Version
QE01721C
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
5 distinct active ingredients are disclosed in Supplement Facts.
Label includes a proprietary blend, so some individual amounts are not itemized.
2 ingredients report a %DV; 1 meet or exceed 100% DV.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Supplement Facts
Serving Size: 3 Vegetarian Capsule(s) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin C(Ascorbyl Palmitate) | 18 mg | 30% |
| Niacin(Niacinamide) | 66 mg | 330% |
| L-Tryptophan | 1000 mg | — |
| L-Lysine(L-Lysine Hydrochloride) | 250 mg | — |
| Proprietary Tryptophan Plus Blend | 285 mg | — |
| Perluxan Hops standardized extract | — | — |
| Ursole Rosemary standardized extract | — | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
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.
Warnings & Precautions
Precautions re: All Other
Caution: Serotonin syndrome is characterized by high levels of serotonin and symptoms like confusion, sweating, agitation, nausea, involuntary muscle contractions, and racing heartbeat. Do not take L-tryptophan if you experience these symptoms. Do not use before driving or operating heavy machinery.
Precautions re: Pregnant or Nursing or Prescription Medications
Because tryptophan may have numerous drug interactions (most commonly, MAOIs and SSRIs) consult your healthcare provider before taking this product if you are taking prescription medications.
Precautions re: Children
Warnings: - Keep out of reach of children.
Precautions re: All Other
- Do not exceed recommended dose. - Do not purchase if outer seal is broken or damaged.
Precautions re: Pregnant or Nursing or Prescription Medications
- When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
Storage
Storage
Store tightly closed in a cool, dry place.
FDA Statements
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Other Label Statements
General Statements: All Other Content
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
General Statements: All Other Content
Scan for product info
General: Product/Version Code
QE01721C
General Statements: All Other Content
Natural sleep enhancement and stress reduction
Brand IP Statement(s) re: (c), (TM), (SM)
Perluxan is used by permission. Ursole is a trademark of Vitiva d. d., Slovenia.
Manufacturer & Distributor
Distributor
Quality Supplements and Vitamins, Inc.
Ft. Lauderdale, FL, 33309
866-280-2852
Market Reference
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$28.75
Aminoplus Tryptophan plus Kapseln
apohealth.de5.0(2)$28.04
Tryptophan
Sarasota IV Lounge$25.00
Tryptophan New
biotikon.eu$20.36Lowest
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
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GNC
3.0 (32)Vitamin & supplements store
43930 Farmwell Hunt Plaza, Ashburn, VA 20147
The Vitamin Shoppe
4.1 (108)Vitamin & supplements store
45450 Dulles Crossing Plaza #185, Sterling, VA 20166
Dulles Nutrition Corner
4.8 (74)Vitamin & supplements store
45591 Dulles Eastern Plaza #186, Sterling, VA 20166
Stellar Labs Nutrition
1.0 (1)Health food store
44031 Pipeline Plaza STE 210, Ashburn, VA 20147
3G NUTRITION
5.0 (1)Herbalist
794 Center St Unit B, Herndon, VA 20170
Fitness + More
4.8 (19)Vitamin & supplements store
1141 Elden St #106, Herndon, VA 20170
Healthy By Nature
4.5 (17)Health food store
305 E Market St Ste O, Leesburg, VA 20176
Unjury Protein & Vitamins
4.3 (15)E-commerce service
45975 Nokes Blvd, Sterling, VA 20166
Research & Studies
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 citationsExercise 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 citationsL-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 citationsAnalysis, 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 citationsHarnessing 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 citationsNutritional 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 2016-07-25. DSLD Label ID: 62824. 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.
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