Capsules · 90 capsules
Serving Size: 4 Capsules
Amount Per Serving
L-Tryptophan ... 2,000 mg
Other Ingredients: Vegetarian capsule (hydroxypropyl methylcellulose, water), microcrystalline cellulose, and ascorbyl palmitate.
Made without common allergens | Non-GMO
Vegan | No synthetic colors or flavors
CAUTION: Consult with your physician if you are pregnant or nursing, or have any medical condition, or taking prescription drugs (including antidepressants such as MAOls and SSRls, and sedatives), or under the age of 18 years.
May cause drowsiness. Do not use with alcoholic beverages or before and while operating a motor vehicle or machinery.
KEEP OUT OF REACH OF CHILDREN.
Do not use if shrinkwrap is broken or missing
Store at room temperature (59°- 85°F).
Adults: 2 to 4 capsules at bedtime or as directed by a healthcare professional.
Children: As directed by a healthcare professional.
Ingredient information is provided above. A clear label image is not available yet.
View original supplier image (quality may be limited)Source: Fullscript supplier catalog · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Klaire Labs L-Tryptophan delivers the free-form amino acid precursor to serotonin and melatonin, supporting healthy mood balance, relaxation, and restful sleep patterns. As an essential amino acid the body cannot synthesize on its own, supplemental L-tryptophan provides the foundational building block for neurotransmitter and sleep-cycle support. Formulated under Klaire Labs' characteristically rigorous quality standards, this product is well-suited for practitioners and health-conscious individuals alike.
Why It's Worth Considering: Klaire Labs uses pharmaceutical-grade, free-form L-tryptophan with minimal excipients, consistent with the brand's focus on hypoallergenic, clean-label formulations trusted in clinical practice.
Adults: 2 to 4 capsules at bedtime or as directed by a healthcare professional.
Children: As directed by a healthcare professional.
Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements, some probiotics and oils require refrigeration.
Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.
Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.
Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.
Track your specific health goals, energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.
Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for Klaire Labs/SFI Health - L-Tryptophan. This data will be available soon.
† 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.
