Vitamin World Bi-Layered Melatonin Quick & Extended Release
Brand: Vitamin World · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that melatonin is a well-studied supplement for sleep support, but the specific formulation and dosage of Vitamin World Bi-Layered Melatonin Quick & Extended Release must be evaluated carefully. Data on this exact product is not available, so we rely on general melatonin data. Melatonin is effective for reducing the time to fall asleep, known as sleep onset latency, based on studies including a 2022 meta-analysis in Nutrients [NIH ODS].
How it works
Think of melatonin as your body's natural sleep signal. Your brain produces it in response to darkness, helping to regulate your circadian rhythm. A bi-layered tablet is designed to release melatonin in two phases: a quick-release layer to help you fall asleep, and an extended-release layer to help you stay asleep. This mechanism supports sleep maintenance by mimicking the body's natural melatonin profile [NIH ODS].
Safety profile
FDA received 6,013 adverse event reports for melatonin across all products. The most commonly reported side effects include headache (reported in 1,136 reports), dizziness (reported in 703 reports), and nausea (reported in 675 reports) [FDA data]. Long-term safety data for daily use beyond a few months is limited. Data not available for this specific product's side effect profile.
Our recommendation
Start with the lowest effective dose, typically 1 mg to 3 mg, taken 30 to 60 minutes before bedtime. If you use this bi-layered formula, take it only when you have a full 7-8 hours for sleep to avoid grogginess. Do not drive after taking it. Consult your doctor before use, especially if you take blood thinners or have an autoimmune condition [NIH ODS] [FDA data].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Vitamin World |
|---|---|
| Serving Size | |
| Contents | 60.0 Bilayered Tablet(s) |
| Market Status | On Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide