OstroVit Keep Sleep MELATONIN 4K (100tabs)


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OstroVit Keep Sleep Melatonin 4K is a dietary supplement that is a source of the natural hormone melatonin. It is a preparation available in the form of easy-to-swallow tablets, which is recommended especially for people working shifts and often changing time zones.

  • Source of melatonin – one serving of dietary supplement provides the body with 1 mg of natural hormone.
  • 1 serving = ¼ tablet.
  • Performance – the product packaging contains 100 tablets, i.e. as many as 400 portions of the preparation.
  • Convenient form – preparation available in the form of easy to swallow tablets.

OstroVit Keep Sleep Melatonin 4K – night support of the body

Melatonin is a hormone that occurs naturally in the human body. It is produced in the central nervous system by the pineal gland, which is one of the endocrine glands. It is a derivative of tryptophan, the synthesis and secretion of which in the body increases darkness, while light inhibits the course of processes. The body’s natural production of melatonin begins after sunset and is most intense in the middle of the night, between 2 and 4 a. m. Therefore, the compound is often referred to as the hormone of darkness or sleep hormone. Since the level of melatonin production decreases with age, and a gradual decrease in the concentration of the compound can be observed already around the age of 40, it is worth considering also supplying the hormone to the body from the outside.

Properties of the ingredients contained in OstroVit Keep Sleep Melatonin 4K:

Melatonin helps to alleviate the subjective sensation of sudden time zone change syndrome, and the beneficial effect occurs when consuming 0.5 mg shortly before going to bed on the first day of travel and for the next few days after arrival at the destination, which is why the dietary supplement can be helpful during frequent travel and “jet-lag”.

Melatonin helps reduce the time it takes to fall asleep, and beneficial effects occur when 1 mg of melatonin is consumed shortly before going to bed.


Take 1 serving (¼ tablet) a day, 30 minutes before sleep. A beneficial effect occurs when you take 1 mg of melatonin shortly before going to bed or 0.5 mg shortly before going to bed on your first day of travel and for the next few days after arriving at your destination.

Do not exceed the recommended daily dose. Do not use the product as a substitute (replacement) for a varied diet. Recommended are balanced diet and healthy lifestyle. Do not ingest if you are allergic to any of the ingredients. Children, pregnant or nursing women must not take the product. Keep out of the reach of children.

Keep this packaging tightly closed in a dry place, at a temperature of 15-25°C. Keep out of direct sunlight.

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Nutritional information

Net weight of product: 10 g

Servings per container: 400

Serving size: ¼ tablet

Active ingredients Per portion 1 tablet
Melatonin 1 mg 4 mg