How does NSI® Melatonin work?
Melatonin is a human hormone produced deep within the brain by the pineal gland, from the amino acid tryptophan. It has been called the "darkness" hormone because the synthesis and release of melatonin are stimulated by darkness and suppressed by light.

Levels of melatonin in the bloodstream are highest prior to bedtime. Since production of this hormone rises at night and decreases by day, Melatonin affects our internal body clock and sleep cycles.

Melatonin is believed to be involved in circadian rhythm and in the regulation of many body functions. NSI® Melatonin may prove useful for insomnia (difficulty falling or staying asleep) and other sleep-related disorders, including jet lag.

NSI® Melatonin 3 mg is better because it:
- Provides natural support for healthy sleep
- Contains the most potent and highest quality nutrients
- Provides a better value compared to other brands

Did You Know?

All NSI supplements are packaged in HDPE (High Density Polyethylene) bottles. These bottles keep moisture vapor out, protecting the freshness and integrity of their contents, and are 400% more effective compared other brands currently using PET (Polyethylene Terephthalate) bottles. HDPE bottles do not break as glass can and are also recyclable so we urge you to please recycle them.