Natural Factors Stress-Relax Melatonin 5 mg Chewable
Brand: Natural Factors · Form: TABLET [E0155]
Our assessment
The evidence shows that this product is a straightforward melatonin supplement. For sleep support, melatonin is well-studied, but the 5 mg dose is higher than what many people need to start with. Our assessment: you should begin with a lower dose, typically 0.5 mg to 3 mg, as 5 mg can cause next-day drowsiness in some individuals. Data not available on specific efficacy for this brand.
How it works
Think of melatonin as your body's natural "darkness signal." It is a hormone that helps regulate your sleep-wake cycle. By taking a 5 mg chewable dose, you are providing a strong signal to your brain that it is time to prepare for sleep, which can help you fall asleep faster, especially if you have jet lag or shift work sleep disorder [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For melatonin specifically, common side effects include headache, dizziness, and next-day grogginess. Safety data for this specific product is limited. Because it is a chewable, it may interact with other medications, including blood thinners and diabetes medications [FDA data].
Our recommendation
Start with a half tablet (2.5 mg) to see how you respond. Take it 30 to 60 minutes before you plan to sleep. Do not use it if you are pregnant, breastfeeding, or have an autoimmune condition without consulting your doctor. For best results, use it only for short-term sleep issues like jet lag, not as a long-term daily sleep aid [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Natural Factors |
|---|---|
| Serving Size | |
| Contents | 90.0 Chewable Tablet(s) |
| Market Status | Off 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