Product Label

Natural Factors Stress-Relax Melatonin 3 mg

Brand: Natural Factors Stress-Relax · Form: TABLET [E0155]

Our assessment

The evidence shows that melatonin is a well-studied supplement for occasional sleep support. For this specific product, we rely on the general safety profile of melatonin, as detailed ingredient-specific adverse event data for this brand is not available. Data not available for brand-specific reports.

How it works

Think of melatonin as your body’s natural sleep signal. It is a hormone that helps regulate your circadian rhythm — your internal 24-hour clock. Taking a 3 mg dose can help signal to your brain that it is time to prepare for sleep, particularly when your natural production may be low, such as with jet lag or shift work [NIH ODS].

Safety profile

FDA received a total of 592,059 adverse event reports across all dietary supplements. For melatonin specifically, common side effects can include daytime drowsiness, dizziness, and headache. Data not available for the exact number of melatonin-specific reports from this data set. For calcium, a common co-ingredient in some supplements, high intakes can cause constipation, nausea, and abnormal heart rhythms [NIH ODS] [FDA data].

Our recommendation

Start with a low dose, such as 1.5 mg, to see how your body responds before moving to the full 3 mg serving. Take it 30 to 60 minutes before you plan to sleep. Avoid driving or operating machinery for at least 5 hours after taking it. If you are pregnant, nursing, or have an autoimmune condition, consult your doctor first [NIH ODS].

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandNatural Factors Stress-Relax
Serving Size
Contents90.0 Chewable Tablet(s)
Market StatusOff 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

Original Label

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