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What is Circadian Driven Hormones?

There is a Circadian Rhythm in our body which regulates the cycle of alertness and sleepiness. When you are asleep, your melatonin level will increase while your cortisol level will drop. As we wake up, your melatonin level will drop to the lowest level while your cortisol will increase to the highest level. If this cycle is affected your sleep quality might also be affected.


It is a chemical compound left over from the energy-producing process in your muscle. It can affect us to sleep less.


It is converted by cortisol.


It should be opposite relationship with melatonin. When melatonin is high, cortisol should be low. When one of them is not balance it can affect our sleep pattern.


Produced by the pineal gland. It is triggered by darkness and signal our body to sleep.

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Sleep Balance

Find out if it is hormone related

Is sleeping quality the cause for your health issues?

HK BioTek Technology Competence

•  Sample will be sent to ZRT Laboratory in the United States for analysis, which is the only specialty hormone laboratory to have qualified for the CDC's Hormone Standardization Program (HoSt).

•  All hormone test are analyzed with reference ranges for individual patient ages, menstrual status, and hormone supplementation

•  ZRT is the only laboratory to perform an extraction process for saliva testing, which separates hormones from background contamination. This ensures accurate test results for low-concentration hormones.

Testing Items

Dried urine samples are used for a comprehensive assessment to unlock the relationship between sleeping issue and hormones.

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Sampling Demostrations


Comprehensive Support

The report suggests how to improve the situations.

Combine with healthcare professional’s consultation, you can achieve the optimal health in a simple way!


You will be receiving the followings within 2-3 weeks:

Personal Report


Easy interpretation

 Present your level of different hormone, and suggest ways to improve

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The Testing Process

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Frequently-Asked Questions

1. How can this test help me?

Can know whether both cortisol and melatonin are balance.

2. What can I do if they are not balance?

We can use melatonin supplements. The safe range is 0.5mg to 5mg. And research shows that taking melatonin in small dose is more effective than large dose.

3. Why do we need to test both cortisol and cortisone?

It gives a better picture of total cortisol production by adrenal.



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