Yes, melatonin is considered to have significant anti-aging properties due to its powerful antioxidant effects, ability to protect mitochondria, reduce inflammation (inflammaging), and support circadian rhythms, which decline with age, potentially slowing age-related issues like neurodegeneration and skin aging. While its primary role is sleep regulation, research highlights its potential in combating cellular damage, making it a promising molecule for healthy aging, though more human trials are needed for definitive therapeutic claims.
Regarding UV-induced solar damage, melatonin distinctly counteracts massive generation of reactive oxygen species, mitochondrial and DNA damage. Thus, there is considerable evidence for melatonin to be an effective anti-skin aging compound, and its various properties in this context are described in this review.
Melatonin supports skin regeneration and antioxidant activity, helping neutralize free radicals (unstable molecules that can damage cells and accelerate visible aging). By reducing oxidative stress, melatonin helps support collagen, elasticity, and an even tone—key for smoother, youthful-looking skin.
Other mechanisms by melatonin which exerts anti-aging effects are the modulation of the sirtuin1 (a deacetylase that regulates metabolic activity in response to cellular stress) pathway and the modulation of autophagy, which is decreased during aging.
Who can take melatonin. Most adults aged 55 years old or over can take melatonin to help short-term sleep problems. Adults under the age of 55 and children with longer-term sleep problems can take melatonin if a specialist recommends it.
Top 7 Anti-aging Vitamins
DALLAS, Nov. 3, 2025 — Long-term use of melatonin supplements, often used to promote sleep and address insomnia, was associated with a higher risk of heart failure diagnosis, heart failure hospitalization and death from any cause in chronic insomnia, according to a preliminary study to be presented at the American ...
Many studies showed that melatonin might decrease the estrogen level, and vice versa [7], while it increases the level of progesterone [8]. Another study reported that melatonin has a putative contraceptive effect [9].
For some people, melatonin supplements have a hypnotic effect and help get them to sleep. It can increase your quality of sleep, how quickly you fall asleep and how long you sleep. It can help people who have insomnia (trouble falling asleep or staying asleep) and other sleep-related conditions.
Melatonin is a hormone that regulates our sleep-wake cycle. Milk, nuts, cherries, fish, rice, goji berries, and oats contain melatonin. Avoid spicy food, chocolate, tomatoes, pizza, and citrus fruits before bed. Your daily diet and sleep hygiene are key to improving sleep.
In the eye, melatonin regulates a variety of key processes like inhibiting angiogenesis by reducing vascular endothelial growth factor levels and protecting the blood-retinal barrier (BRB) integrity by enhancing tight junction proteins and pericyte coverage.
What are the treatment options for wrinkles?
The findings of the reviewed studies indicate that melatonin is effective in promoting hair growth and reducing hair shedding, particularly in individuals with AGA or telogen effluvium.
Sun exposure
Researchers estimate that exposure to sunlight's UVA and UVB rays counts for 90% of the symptoms of skin aging. Over time, this damage adds up, resulting in wrinkles, age spots, and visible redness.
Research suggests that Melatonin might play a role in melanin production and distribution potentially influencing hair colour. It is thought that Melatonin protects melanocytes from oxidative damage which helps to then preserve hair colour and prevent premature greying.
The most common melatonin side effects include:
Melatonin, a hormone responsible for circadian rhythm, plays a complex role within the immune system, including having an anti-inflammatory effect. While there are numerous animal studies demonstrating this effect, few human clinical trials have been conducted.
The gut microbiota helps produce melatonin from tryptophan, and melatonin has been shown to have a beneficial effect on gut barrier function and microbial population.
Melatonin did not alter BP reactivity in healthy normotensive men and women. However, melatonin did decrease nighttime peripheral and central systolic BP, suggesting it may be beneficial in lowering BP even in those with a normal BP.
Long-term use of melatonin may lead to decreased effectiveness and impact your natural melatonin production. Watch for side effects of excessive melatonin use, including headaches, nausea, and fatigue.
Melatonin acts as an anti-estrogen, improving immune response (Sanchez-Barcelo et al. 2005). Another important function of melatonin is its role in cardiac activity. When humans sleep at night, heart rate and blood pressure are lowered.
Foods that lower and decrease and flush excess estrogen levels quickly include cruciferous vegetables, flaxseeds, soy, green tea, berries, and other foods.
It is found that melatonin has a negative effect on long-term potentiation, inhibiting its magnitude. As long-term potentiation is related to some forms of learning and memory, melatonin inhibits learning and memory too.
Conclusions: In a large, multinational real-world cohort rigorously matched on >40 baseline variables, long-term melatonin supplementation in insomnia was associated with an 89% higher hazard of incident heart failure, a three-fold increase in HF-related hospitalizations, and a doubling of all-cause mortality over 5 ...
People who are pregnant, breastfeeding, have autoimmune disorders, seizure disorders, depression, bleeding issues, or are on certain medications (like blood thinners, blood pressure drugs, diabetes meds, or immunosuppressants) should generally avoid melatonin or consult a doctor first, as it can worsen conditions, interfere with meds, or cause side effects like daytime drowsiness, especially in older adults with dementia.