Nuzena Circadian Sleep Support+ Review: Does it Work?

Elevate sleep quality naturally with Nuzena Circadian Sleep Support+. Explore its benefits for a healthy sleep cycle, relaxation, mood, and anxiety reduction.

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In This Review

Overview of Nuzena Circadian Sleep Support +

Sleep quality is a major issue in the United States. In fact, in a study conducted by the University of Pennsylvania School of Medicine, it was discovered that about one in every four Americans suffers from insomnia. That’s roughly a quarter of the population that finds it difficult to get enough sleep each night.[1].

And the effects of poor sleep are significant. According to a report by the National Institutes of Health,

Several studies of adolescents, including one with more than 3,000 high school students, found that inadequate sleep is associated with higher levels of depressed mood, anxiety, behavior problems, alcohol use[2].

And the same types of health risks are present for adults as well. That’s why it’s imperative to get a good night’s rest as often as possible. Circadian Sleep Support + is a supplement that may be able to help with that.

In the following Circadian Sleep Support + review, we will be looking at the formula, effects, and consumer response to this product.

What is Circadian Sleep Support +?

Is a natural supplement that aims to correct your circadian rhythms and help you get a good night’s sleep every night. It comes in capsule form and since all of the ingredients are natural, it’s not habit-forming.

The formula consists of a proprietary mixture of amino acids and botanical extracts that have been proven to benefit sleep quality in one way or another.

As a result, Circadian Sleep Support + can also work to reduce your levels of anxiety, help you avoid abusing alcohol, and improve your general outlook. This is a supplement suitable for both men and women.

How Does Circadian Sleep Support + Rate?

Overall Rating: 4.9
Nuzena Circadian Sleep Support +Circadian Sleep Support +


Value for Cost

5/5Value for Cost



Brand Highlights

  • The company sustainably sources its ingredients
  • An in-house team of healthcare professionals
  • 3rd party tested formulas
  • Microbiology-tested products

Key Ingredients

  • L-tryptophan
  • Hope
  • L-theanine
  • Skullcap
  • Melatonin
  • 5-HTP
  • L-taurine
  • St-Johns Wort
  • Ashwagandha
  • Inositol
  • Valerian
  • Goji
  • Lemon balm
  • Passionflower
  • GABA


  • Supports healthy sleep cycles
  • Reduces anxiety
  • No harsh sedatives
  • Gluten-free
  • Helps you fall asleep faster
  • Promotes deep sleep states


  • Shipping may take a while
  • It may sell out fast

You can BUY it directly from the Official Website

Who is the Manufacturer of Circadian Sleep Support +?

Circadian Sleep Support + is produced by a company called Nuzena which was founded by Ryan Donald. The company produces a vast array of quality supplements such as eye, skin, and joint health supplements.

How Does Circadian Sleep Support + Work?

Circadian Sleep Support + works through a mixture of amino acids and botanical extracts. Researchers B.Y. Silber and A.J. Schmitt speak of the benefits of amino acid supplementation as it pertains to sleep quality:

Of the micronutrients, amino acids are known to play an important role. Tryptophan is an essential amino acid that has been associated with increased subjective sleepiness, reduced latency to sleep onset, and fewer night-time awakenings[3].

This supplement works by helping the user sleep more soundly through the night. And most importantly, it works naturally through the use of non-habit forming, natural ingredients that promote a feeling of calm.

The formula for this supplement can also help reduce the feelings of anxiety that may be keeping you from falling asleep in the first place.

Circadian Sleep Support + Ingredients – Are They Safe & Effective?

Take a look at the main ingredients in Circadian Sleep Support +:

Lemon Balm

Lemon balm is an herbal extract that has been proven to work in conjunction with valerian, another active ingredient in this formula, to promote better sleep as we see in the following quote taken from a Mount Sinai report:

81% of those who took an herbal combination of valerian and lemon balm reported sleeping much better than those who took a placebo[4].

This is solid evidence that lemon balm can work as a natural way to improve sleep quality, as we discussed in our review of another sleep support product called Noocube Sleep Upgrade.

Nuzena Circadian Sleep Support+ Review supplement fact

Nuzena Circadian Sleep Support+ supplement fact


Hops act as a natural sedative as they decrease nighttime disturbances and brain activity as we see in the following Pubmed[5] quote:

The concentration of 2 mg of hop extract effectively decreased nocturnal activity in the circadian activity rhythm.

Hpos supplementation can therefore decrease the disturbance of circadian rhythms that are crucial for sleep.


Gamma-aminobutyric acid (GABA) is a neurotransmitter that plays a crucial role in regulating brain activity. Our Chronoboost Pro Review suggests that GABA supplementation may have potential benefits for conditions such as anxiety disorders, insomnia, depression, and epilepsy. It is commonly used as a natural remedy to support mental well-being and cognitive function.

The Sleep Foundation conducted a test to observe the effects of GABA on sleep cycles. The test observed 40 adults who were given 300mg of GABA an hour before bed. Over the course of 4 weeks, the test concluded that GABA supplementation significantly reduced the time it took for test subjects to fall asleep [6].


5-HTP, also referred to as 5-hydroxytryptophan, is an amino acid that has been linked with lowered sleep latency. In a placebo-controlled study, it was found that subjects given 5-HTP fell asleep quicker than subjects who were given a placebo[7] .


L-Taurine is an amino acid with potential benefits for promoting relaxation and improving sleep quality. As discussed in our AdrenaLife Review, L-Taurine acts as an inhibitory neurotransmitter in the brain, meaning it can help calm the nervous system and promote feelings of relaxation and calmness. By modulating neurotransmitter activity, L-Taurine may help reduce stress and anxiety, which are common contributors to sleep disturbances.

According to a study conducted by the National Institutes of Health:

At 0.75%, taurine also increases total sleep by 50%. Our results show that taurine increases sleep while caffeine, as previously reported, attenuates sleep.[8]

This amino acid therefore represents a natural way to get more rest for your body and brain.


Skullcap is a type of herb that has been hailed as a natural sedative. In fact, it has been used for a wide variety of sedative-related purposes including reduction of anxiety, to relieve nervous tension, and even to reduce convulsions[9].

Passion Flower

Passionflower is a popular botanical extract that is typically used as a relaxing agent or even a sedative. It is also used as a natural treatment for insomnia. According to the Mount Sinai staff, passionflower works by increasing gamma-aminobutyric acid which lowers the activity of brain cells so it’s easier to fall asleep[10].

Valerian Root

Valerian root is a popular herbal supplement used to promote relaxation and improve sleep quality, as we discussed in our VitaPost Sleep Support Plus Reviews. It has been used for centuries as a natural remedy for insomnia and other sleep disorders.

As discussed in our Mita Man Sleep Reviews, valerian root contains compounds that may increase levels of gamma-aminobutyric acid (GABA) in the brain, a neurotransmitter that helps regulate mood and induce relaxation. By enhancing GABA activity, valerian root may help calm the nervous system and promote feelings of tranquility, making it easier to fall asleep and stay asleep throughout the night.

Other Ingredients: Goji, chamomile, l-tryptophan, valerian, St-John’s Wort, l-theanine, ashwagandha, melatonin, Inositol, calcium, vitamin B6, magnesium

Benefits of Circadian Sleep Support +

The health benefits of Circadian Sleep Support + include:

Better Productivity: Getting better sleep will give you more energy so you can get more done during the day.

Good Source of Vitamins: This supplement has a healthy dose of vitamins and minerals that will benefits the user’s general health.

Deeper Sleep: Circadian Sleep Support + promotes deeper REM sleep so you wake up feeling more rested.

Better Mood: Getting high-quality sleep can elevate your mood and help your brain manage stress.

Lower Sleep Latency: Circadian Sleep Support + can reduce the time it takes for you to fall asleep.

Anti-Anxiety Effects: Passionflower can help lower brain cell activity which can reduce anxiety levels.

You can BUY it directly from the Official Website

Nuzena Circadian Sleep Support +: FAQs

Q: Does Circadian Sleep Support + really work?

A: Many confirmed customers have attested to the fact that this supplement works as advertised though individual results may vary.

Q: Does Circadian Sleep Support + cause side effects?

A: While everyone’s health is different, this supplement is made from safe, tested ingredients that shouldn’t cause serious side effects for most users.

Q: How should you take Circadian Sleep Support +?

A: You should take 2 capsules of Circadian Sleep Support + daily. For the best results, take one capsule at midday and another in the evening or as directed by a physician.

Q: What sets Circadian Sleep Support + apart from the competition?

A: Circadian Sleep Support + has a thorough formula that addresses multiple aspects of insomnia.

Q: What is the Circadian Sleep Support + return policy?

A: If customers are not satisfied with the product, they have 30 days to return Circadian Sleep Support Plus for a refund.

Q: Where to buy Circadian Sleep Support +?

A: You can get Circadian Sleep Support + on the Nuzena official website, where it costs $45 per bottle (one-time purchase price) or $38.25 (subscription price).

What Do the Circadian Sleep Support + Reviews Say?

Circadian Sleep Support + reviews have been very positive up to now. Here are just a few examples:

My husband works shift work so I got him these to be able to sleep during the day. He says they are helping quite a bit. –Katherine Uitenbroek

Seems to be working well, feeling more rested and my Apple watch says I am having more REM sleep. –Britney Krotky

My daughter bought me this because I was not sleeping well and she uses these. So happy with these. I am always hesitant to take sleeping aids but these are natural and do not make me feel out of control. Happy with them. –Linda Spar

Nuzena Circadian Sleep Support + Review: Conclusion

Circadian Sleep Support + is a natural supplement that has been proven to be effective both by popular review and scientific research. It can help you fall asleep faster and attain deeper sleep.

As a result of better sleep, you will find that you have more physical and mental energy, a better outlook, and reduced feelings of stress and anxiety.

We recommend this supplement for any adult who is having trouble sleeping. It is also a good supplement to try if you want to get more REM sleep.

Where To Find It?

Buy it on the Nuzena website for the best prices!

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Consumer Health Digest. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer. *All individuals are unique. Your results can and will vary.

Customer Reviews for Circadian Sleep Support +

Nuzena Circadian Sleep Support+ Review: Does it Work?

Customer Reviews & Ratings

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Circadian Sleep Support +
60 Capsules
L-tryptophan, Hope, L-theanine, Skullcap, Melatonin, 5-HTP and others.

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    10 Sources

    We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.

    [1] 1 in 4 Americans Develop Insomnia Each Year:
    [2] Extent and Health Consequences of Chronic Sleep Loss and Sleep Disorders:
    [3] Effects of tryptophan loading on human cognition, mood, and sleep:
    [4] Lemon Balm:
    [5] The sedative effects of hops (Humulus lupulus), a component of beer, on the activity/rest rhythm:
    [6] GABA for Sleep:
    [7] The Impact of 5-Hydroxytryptophan Supplementation on Sleep Quality of Older Adults in Singapore: A Randomized Controlled Trial:
    [8] Effect of taurine and caffeine on sleep-wake activity in Drosophila melanogaster:
    [9] Skullcap:
    [10] Passionflower:

    **This is a subjective assessment based on the strength of the available informations and our estimation of efficacy.

    *Result may vary. If you are pregnant, nursing, have a serious medical condition, or have a history of heart conditions we suggest consulting with a physician before using any supplement. The information contained in this website is provided for general informational purposes only. It is not intended to diagnose, treat, cure, or prevent any disease and should not be relied upon as a medical advice. Always consult your doctor before using any supplements.

    Disclosure of Material connection: Some of the links in the post above are "associate sales links." This means if you can click on the link and purchase an item, we will receive a commission. Regardless, we only recommend products or services which we use personally and/or believe will add value to our readers. We are disclosing this in accordance with the Federal Trade Commission's 16 CFR, Part 255: "Guides Concerning the Use of Endorsements and Testimonials."

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