Net Contents
3.5 oz.
Serving Size
3.3 Gram(s)
Servings Per Container
30
Supplement Form
Powder
Bar Code (UPC/SKU)
Not specified
Product Version
REV 1209
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
10 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
7 ingredients report a %DV; 3 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: 3.3 Gram(s) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Calories | 5 {Calories} | — |
| Total Carbohydrates | 1 g | 1% |
| Sugar | 1 g | — |
| Vitamin A(Beta-Carotene) | 850 IU | 17% |
| Vitamin C(Ascorbic Acid) | 75 mg | 125% |
| Niacin | 20 mg | 100% |
| Vitamin B6(Pyridoxine Hydrochloride) | 4 mg | 200% |
| Sodium(Sodium Bicarbonate) | 40 mg | 2% |
| Potassium(Potassium Bicarbonate) | 160 mg | 5% |
| TryptoPure(R) L-Tryptophan | 500 mg | — |
Percent Daily Values are based on a 2,000 calorie diet
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Directions for adult use:
Suggested/Recommended/Usage/Directions
For mood enhancement: Pour 1 level, white bottle capful of powder into the overcap. Add water to the line on the overcap (2 fl. oz./60 mL) and stir.
Suggested/Recommended/Usage/Directions
For sleep support: Take 30 minutes prior to bedtime. Pour 1-2 level, white bottle capfuls of powder into the overcap. Add 2 fl. oz./60 mL (line on the overcap indicates 2 fl. oz./60 mL) of water per capful of powder and stir.
Suggested/Recommended/Usage/Directions
Maximum absorption occurs when taken on an empty stomach. As a dietary supplement, take one or two times daily, or as directed by your healthcare provider.
Warnings & Precautions
Precautions re: Children
KEEP OUT OF THE REACH OF CHILDREN.
Precautions re: Pregnant or Nursing or Prescription Medications
If you are using any other prescription drugs or have an ongoing medical condition, you should consult your healthcare provider before using this product. Take this supplement separately from prescription drugs. Women who are pregnant or breastfeeding should not use this product.
Precautions re: All Other
Do not drive or operate heavy machinery until you know how this product can affect you, as drowsiness may occur.
Precautions re: All Other
Do not use if safety seal is broken or missing.
Precautions re: All Other
Warning: If you are currently taking monoamine oxidase inhibitors (MAOI) or other antidepressants such as Zoloft or Paxil, psychoactive or tranquilizing drugs such as Clonopin or Valium, or pain medications such as Demerol or Ultram, you should consult your healthcare provider before using this product.
Storage
Storage
Store in a cool, dry place.
FDA Statements
FDA Statement of Identity
An Isotonic-Capable 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
Helps enhance and stabilize mood†
General Statements: All Other Content
Helps maintain healthy levels of serotonin†
General Statements: All Other Content
Helps promote the ability to clearly assess everyday situations†
General Statements: All Other Content
Lot #: Best when used by:
General Statements: All Other Content
May help to support a normal sleep cycle†
General: Product/Version Code
REV 1209
General Statements: All Other Content
The world's most advanced nutraceuticals
Manufacturer & Distributor
Distributor
Market America, Inc.
1302 Pleasant Ridge Road, Greensboro, NC, 27409
Market Reference
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Isotonix.com5.0(38)$83.95Isotonix Daily Essentials Packets
eBay4.7(794)$64.95Nutricost L- Tryptophan Capsules
Target4.1(229)$15.95Isotonix OPC-3
dynamicspinecenter.com$29.95Isotonix Multivitamin with Iron
Walmart - Market America Inc - SHOP.COM4.6(146)$68.95L- Tryptophan Powder
Vitacost.com4.5(161)$22.03
Where to Buy Locally
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.
For The Health Of It
4.8 (133)Vitamin & supplements store
2217 W County Hwy 30A, Santa Rosa Beach, FL 32459
The Vitamin Shoppe
4.7 (84)Vitamin & supplements store
34737 Emerald Coast Pkwy #7, Destin, FL 32541
GNC
4.2 (71)Vitamin & supplements store
10746 Emerald Coast Pkwy W #149-B, Miramar Beach, FL 32550
Maxfit Sports Nutrition - Destin
4.9 (15)Vitamin & supplements store
34940 Emerald Coast Pkwy Ste 106, Destin, FL 32541
Staff of Life
4.4 (24)Health food store
1107 E John Sims Pkwy, Niceville, FL 32578
Whole Foods Market
4.4 (1992)Grocery store
4402 Legendary Dr, Destin, FL 32541
CVS
3.6 (102)Vitamin & supplements store
130 Hwy 2378, Miramar Beach, FL 32550
CVS
3.5 (91)Vitamin & supplements store
60 S Holiday Rd, Miramar Beach, FL 32550
Research & Studies
Effects of intragastric administration of tryptophan on the blood glucose response to a nutrient drink and energy intake, in lean and obese men
SS Ullrich, PCE Fitzgerald, P Giesbertz, RE Steinert… - Nutrients, 2018 - mdpi.com
… orally in capsules (dose: ~3 g) 45 min before a lunch meal, or administered intraduodenally over 90 min (dose ~3.3 g), tryptophan also markedly decreased energy intake in healthy …
201825 citationsEffects of intraduodenal infusion of L-tryptophan on ad libitum eating, antropyloroduodenal motility, glycemia, insulinemia, and gut peptide secretion in healthy men
RE Steinert, ND Luscombe-Marsh… - The Journal of …, 2014 - academic.oup.com
… healthy volunteers (17), no effect was observed on plasma GLP-1, ghrelin, appetite, or food intake when L-tryptophan (… The control solution contained isotonic 118.3 mg CaCl 2 × 2H 2 O …
2014103 citationsEffects of combined intraduodenal administration of lauric acid and l-tryptophan on postprandial plasma glucose, glucoregulatory hormones and gastric emptying in …
J Anjom-Shoae, PCE Fitzgerald, BD Rose, V Bitarafan… - Diabetologia, 2026 - Springer
… In healthy men, lauric acid (C12) and l-tryptophan (Trp), when administered intraduodenally … -dependent, and the solutions used were isotonic, we have reported that the effects of C12, …
2026Effects of intraduodenal administration of lauric acid and L-tryptophan, alone and combined, on gut hormones, pyloric pressures, and energy intake in healthy …
C McVeay, PCE Fitzgerald, SS Ullrich… - The American Journal of …, 2019 - Elsevier
Background The fatty acid, lauric acid (‘C12’), and the amino acid, L-tryptophan (‘Trp’), modulate gastrointestinal functions including gut hormones and pyloric pressures, which are …
201920 citationsL-tryptophan supplementation can decrease fatigue perception during an aerobic exercise with supramaximal intercalated anaerobic bouts in young healthy men
C Javierre, R Segura, JL Ventura… - International Journal …, 2010 - Taylor & Francis
… by variations in the availability of L-tryptophan (a serotonin precursor) may alter neural drive. We examined the effect of L-tryptophan supplementation on physical performance by …
201034 citationsA systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
AM Kikuchi, A Tanabe, Y Iwahori - Journal of dietary supplements, 2021 - Taylor & Francis
… This systematic review includes 11 RCTs that examined the effects of TRP intake on positive and negative mood in healthy adult populations. We have targeted healthy adult men and …
2021109 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-02-23. DSLD Label ID: 6193. 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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