Hormones

DHEA (dehydroepiandrosterone) is a hormone produced by the adrenal glands and serves as a precursor to sex hormones. Measuring DHEA in saliva reflects the body’s active hormone levels, offering insight into immediate DHEA production. This measurement is helpful for evaluating adrenal health, aging, and the risk of chronic diseases.

DHEA

The estrogen/progesterone (E/P) ratio is a measurement that indicates the balance between two essential hormones in the body — estrogen (E) and progesterone (P). Both hormones are crucial for female reproductive health, including the regulation of menstrual cycles, fertility, mood, and overall wellness. Maintaining an optimal ratio promotes hormonal balance, while imbalances may lead to various health concerns. This ratio naturally varies throughout the menstrual cycle and can be affected by factors such as age, lifestyle, and medical conditions.

Estrogen/Progesterone ratio

Prolactin is a hormone produced by the pituitary gland primarily associated with lactation in women. It also plays key roles in fertility, immune system regulation, and sexual satisfaction. Elevated prolactin levels can cause symptoms such as irregular menstrual cycles or infertility, while low levels may affect milk production after childbirth.

Prolactin

Progesterone is a hormone that plays a crucial role in the female reproductive system, mainly produced in the ovaries after ovulation. It prepares the uterus for pregnancy and helps sustain it if conception occurs, while a decline in progesterone triggers menstruation. Beyond reproduction, progesterone affects sexual desire, mood, and bone health. During pregnancy, the placenta produces progesterone to support fetal development and prepare for breastfeeding. In men, progesterone is present at lower levels and contributes to sperm production.

Progesterone

The Testosterone/Cortisol ratio reflects the balance between anabolic (building) and catabolic (breaking down) processes in the body. Testosterone supports muscle growth, energy, and recovery, while cortisol is a stress hormone that can promote tissue breakdown when chronically elevated. A healthy ratio may indicate good resilience, recovery capacity, and hormonal balance, whereas a low ratio may suggest high stress load, overtraining, or hormonal imbalance. This marker is particularly relevant for athletes, individuals under chronic stress, or those with fatigue-related symptoms. It helps provide context to both testosterone and cortisol values when interpreted together.

Testosterone/Cortisol ratio

Thyroid Stimulating Hormone (TSH) is a hormone produced by the pituitary gland that regulates thyroid function. It signals the thyroid gland to produce thyroid hormones, which are essential for metabolism, energy regulation, and growth. TSH levels provide important information for diagnosing thyroid disorders and assessing whether the thyroid is functioning properly.

Free testosterone refers to the fraction of testosterone in the bloodstream that is not bound to proteins like sex hormone-binding globulin (SHBG) or albumin. Unlike bound testosterone, free testosterone is biologically active and readily available to interact with cells, making it a key indicator of hormonal activity in the body. It plays a vital role in regulating libido, energy levels, muscle strength, and mood in both men and women.

Testosterone (free)

Sex hormone-binding globulin (SHBG) is a glycoprotein primarily produced by the liver that binds and transports sex steroids—mainly testosterone and estradiol—in the bloodstream. By binding these hormones, SHBG controls how much is biologically available to tissues. Higher SHBG levels typically decrease the free (unbound) fraction of testosterone and estradiol, while lower SHBG levels increase it. Due to this regulatory function, SHBG plays a key role in hormonal balance for both men and women and is often measured alongside total testosterone and estradiol to help with interpretation.

Sex hormone-binding globulin (SHBG)

Cortisol is the primary glucocorticoid hormone produced by the adrenal glands and is commonly known as the “stress hormone.” It plays a vital role in regulating metabolism, immune response, blood pressure, and the body’s ability to handle physical and emotional stress. Cortisol follows a daily cycle, peaking early in the morning to help promote alertness and gradually decreasing throughout the day. Measuring total cortisol in the blood reflects the combined levels of free and protein-bound cortisol, offering insight into adrenal function and overall hormone balance. Abnormal cortisol levels may be linked to conditions such as adrenal insufficiency, Cushing’s syndrome, chronic stress, or metabolic disorders.

Cortisol (total)

Follicle-Stimulating Hormone (FSH) is a hormone produced by the pituitary gland that plays a crucial role in reproduction for both men and women. In women, FSH prompts the ovaries to mature egg follicles, while in men, it supports sperm production. FSH levels fluctuate throughout a woman’s menstrual cycle and are vital for fertility and overall reproductive health.

Free Cortisol refers to the unbound, biologically active form of cortisol circulating in the body. Unlike total cortisol, which includes both bound and unbound hormone, free cortisol represents the fraction that is available to tissues and can directly influence stress response, metabolism, immune function, and energy levels. Measuring free cortisol provides a more accurate reflection of how the body is responding to physical and emotional stress. It is commonly assessed in urine or saliva samples and is particularly relevant in evaluating adrenal function and circadian rhythm imbalances.

Cortisol (free)

Melatonin is a hormone mainly produced by the pineal gland in the brain. It plays a crucial role in regulating the body’s internal clock, including the sleep-wake cycle. Melatonin levels naturally increase in the evening, reach their peak overnight, and decrease by morning, helping signal the body to get ready for rest. It also supports other functions such as immune response and antioxidant protection.

Melatonin

DHEA-S (dehydroepiandrosterone sulfate) is the more stable and abundant form of DHEA found in the blood. Measuring DHEA-S levels provides a longer-term indicator of DHEA status, aiding in the assessment of hormonal balance, adrenal gland function, and age-related hormonal changes.

DHEA-S

Free Thyroxine (fT4) is a vital thyroid hormone produced by the thyroid gland, playing a crucial role in metabolism, brain development, and bone health. It acts as the precursor to the active hormone fT3. Measuring fT4 offers insight into thyroid function by reflecting the hormone that is directly released and available for conversion.

Free T4 (fT4)

Estrogen is a primary sex hormone found in both women and men, though at varying levels. In women, it supports the development and regulation of the reproductive system, menstrual cycle, and secondary sexual characteristics, while also affecting bone health, skin, and mood. In men, it contributes to libido, erectile function, and sperm production. It is primarily produced in the ovaries for women and the testes for men. Estrogen levels naturally fluctuate during puberty, menstrual cycles, pregnancy, and menopause. Imbalances can lead to menstrual irregularities, mood changes, and other health issues.

Estrogen (estradiol)

Testosterone is a hormone that plays a crucial role in both male and female health. In men, it is primarily produced in the testes and is vital for the development of male reproductive tissues, promoting muscle growth, body hair, libido, and mood regulation. In women, testosterone is produced in smaller quantities by the ovaries and adrenal glands, where it supports bone strength, ovarian function, and sexual desire.

Testosterone (total)

Free Triiodothyronine (fT3) is a measurement that indicates the level of the active thyroid hormone available in the body. As one of the two main thyroid hormones, fT3 plays a crucial role in regulating metabolism, heart rate, and body temperature. Unlike total T3, fT3 represents the unbound hormone that is immediately available for use, making it an important marker of thyroid function.

Free T3 (fT3)

Luteinizing Hormone (LH) is a hormone produced by the anterior pituitary gland that plays a key role in reproductive health for both men and women. In women, LH triggers ovulation and supports the menstrual cycle by stimulating progesterone production. In men, it promotes testosterone production in the testes. Maintaining balanced LH levels is important for proper hormonal regulation and reproductive function.

Luteinizing Hormone

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About melatonin
Melatonin is a hormone produced in the pineal gland, the epiphysis of the brain, and its function is primarily to help control our circadian rhythm. The secretion of melatonin makes us sleepy and the levels varies during the day and is affected by light and darkness. The level increases at dusk and is at its highest at night and at its lowest during the day when the light is at its strongest. Some people have too low melatonin production which makes it difficult for them to fall asleep. If you suffer from sleep problems, there are good reasons to test your levels and if our test shows low levels, there are supplements to buy to get your levels up.
Melatonin also helps the body regulate other hormones, our blood pressure and body temperature, as well as acts as an antioxidant and has immune promoting properties. There are also links between low levels of melatonin and depression and premature aging.
Melatonin deficiency
Melatonin is a hormone that is created from the amino acid tryptophan and that the body itself produces in the pineal gland. When the levels of melatonin rise towards the evening, it gives the body a signal that it's time to sleep which makes you drowsy and tired. If melatonin production is disturbed, you may have difficulty sleeping. Sleep disorders can be caused by various factors such as blindness, jet lag, menopause, rising age, shift work and more. To overcome the sleep problems, you can take extra melatonin in the form of supplements or medication.
The production of melatonin is affected by, among other things, artificial lighting, hard training late in the day, the cycles of the year and aging. By measuring and identifying any imbalances, you can initiate the right treatment to improve melatonin production.

About melatonin 
Melatonin is a hormone produced in the pineal gland, the epiphysis of the brain, and its function is primarily to help control our circadian rhythm. The secretion of melatonin makes us sleepy and the levels varies during the day and is affected by light and darkness. The level increases at dusk and is at its highest at night and at its lowest during the day when the light is at its strongest. Some people have too low melatonin production which makes it difficult for them to fall asleep. If you suffer from sleep problems, there are good reasons to test your levels and if our test shows low levels, there are supplements to buy to get your levels up. 
Melatonin also helps the body regulate other hormones, our blood pressure and body temperature, as well as acts as an antioxidant and has immune promoting properties. There are also links between low levels of melatonin and depression and premature aging. 
Melatonin deficiency 
Melatonin is a hormone that is created from the amino acid tryptophan and that the body itself produces in the pineal gland. When the levels of melatonin rise towards the evening, it gives the body a signal that it's time to sleep which makes you drowsy and tired. If melatonin production is disturbed, you may have difficulty sleeping. Sleep disorders can be caused by various factors such as blindness, jet lag, menopause, rising age, shift work and more. To overcome the sleep problems, you can take extra melatonin in the form of supplements or medication. 
The production of melatonin is affected by, among other things, artificial lighting, hard training late in the day, the cycles of the year and aging. By measuring and identifying any imbalances, you can initiate the right treatment to improve melatonin production.

Melatonin Test

Saliva Tests

GetTested&rsquo;s Melatonin Test analyses your secretion of melatonin. Too low or too high levels can contribute to everything from disturbed sleep to premature aging. With millions of people around the globe suffering from sleep disorders, such as insomnia and hypersomnia, measuring your melatonin levels can help you figure out the origin of your sleeping problem. Additionally, pairing this test with our&nbsp;<a href="/product/cortisol-test-cortisol_-test">Cortisol Test</a>&nbsp;is a popular choice, offering a comprehensive view of your sleep-wake cycle by examining both the sleep hormone and the stress hormone.

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Melatonin & Sleep Regulation | Key Benefits | GetTested

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Melatonin regulates circadian rhythms, aiding the sleep-wake cycle. It also supports immune function and antioxidant activity, crucial for overall health.

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Individuals experiencing sleep disorders, such as insomnia or disrupted sleep patterns, may benefit from testing their melatonin levels. Testing can help determine if irregular melatonin production is contributing to their sleep issues and guide appropriate treatment.

Who would benefit from testing their melatonin levels?

Too Low Melatonin:
<ul>
 <li>
 <ul>
 <li>Difficulty falling asleep</li>
 <li>Irregular sleep patterns</li>
 <li>Early morning awakenings</li>
 <li>Decreased immune function</li>
 </ul>
 </li>
</ul>
Too High Melatonin:
<ul>
 <li>
 <ul>
 <li>Excessive sleepiness during the day</li>
 <li>Mood changes, like depression</li>
 <li>Lowered body temperature</li>
 <li>Disruption in menstrual cycles</li>
 </ul>
 </li>
</ul>

What are symptoms of too low or high melatonin?

People with sleep disturbances, such as those caused by jet lag, shift work, or age-related declines in melatonin production, might find melatonin supplements beneficial. They can help realign the body&rsquo;s internal clock and improve sleep quality.

Who would benefit from taking melatonin as a supplement?

Yes, melatonin can be effective in reducing jet lag symptoms, especially when traveling across multiple time zones. It helps reset the body&rsquo;s internal clock to the new time zone.

Melatonin

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