Source Naturals Timed-Release Melatonin is formulated to allow for a gradual release of the active ingredient during an approximate six hour period. This provides the body with a more even absorption of melatonin.

Some nutrients may break down during liver metabolism. The sublingual form is absorbed directly into the bloodstream, via the blood vessels under the tongue and in the cheeks, bypassing the liver and allowing for quick entry into the system.

- Source: Source Naturals