Product Label

Natural Factors Stress-Relax Melatonin 5 mg

Brand: Natural Factors · Form: TABLET [E0155]

Our assessment

The evidence shows that melatonin is a well-regarded supplement for supporting sleep, but the specific 5 mg dose in this product is higher than the typical starting dose. For most adults, a dose of 0.5 mg to 5 mg is used, though starting lower is often recommended. Data on the exact ingredient in this product is not available, so our assessment is based on general melatonin science.

How it works

Think of melatonin as a master regulator of your sleep-wake cycle. It is a hormone that your body naturally produces in response to darkness, signaling to your brain that it is time to sleep. Taking a melatonin supplement can help reset your internal clock, especially useful for jet lag, shift work, or general insomnia. Because the specific ingredient data is not provided, we cannot confirm the exact mechanism for this product.

Safety profile

FDA received 592,059 total adverse event reports across all dietary supplements. For this specific product, data on side effects is not available. However, general melatonin is considered safe for short-term use. Common side effects can include headache, dizziness, and drowsiness the next day. Higher doses like 5 mg may increase the risk of these effects.

Our recommendation

Start with a lower dose, such as 1 mg to 3 mg, to see how you respond before using 5 mg. Take it 30 to 60 minutes before bedtime. If you are pregnant, nursing, have an autoimmune condition, or take blood thinners or diabetes medications, consult your doctor first. For this specific product, data on its exact ingredients is not available, so we cannot make a final recommendation on it alone.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandNatural Factors
Serving Size
Contents180.0 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

View Full DSLD Label (PDF)

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