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Updated August 2026

If you’re researching Yu Sleep ingredients, you’re probably looking for more than a simple ingredient list.

You want to know what is actually inside the bottle, why each ingredient is included, how the formula is structured, and whether the amounts are clearly disclosed.

Yu Sleep is a liquid nighttime supplement that combines melatonin, vitamins, amino-acid-related compounds, minerals, and botanical ingredients.

The current supplement facts information lists 10 active components, although seven of them are grouped together in a proprietary blend rather than having individual amounts disclosed.

That distinction matters.

An ingredient being present in a formula doesn’t automatically mean the product contains the amount used in a particular clinical study.

So in this article, we’ll look at the formula carefully without treating marketing claims as proven medical benefits.

Important: This article is for informational purposes only. Dietary supplements are not medications, and individual ingredients can interact with medications or medical conditions.

Yu Sleep Ingredients: Quick Answer

The current Yu Sleep supplement facts panel lists:

The seven ingredients in the proprietary blend total 637 mg combined, but their individual quantities aren’t separately listed on the current supplement facts panel.

This is one of the most important things to understand about the Yu Sleep formula.

What Is Yu Sleep?

Interested in learning more about Yu Sleep?

After reviewing what Yu Sleep is and how the product is formulated, you can visit the official product page to see the current product information and purchase options.

→ View the Official Yu Sleep Product Page

Yu Sleep is marketed as a liquid sleep-support supplement designed to be taken before bedtime.

The current product information describes a serving as approximately 2 mL, or two full droppers, with about 30 servings per bottle.

Rather than relying only on melatonin, the formula combines several different types of ingredients.

These include:

• Vitamins
• Melatonin
• Amino-acid-related compounds
• Mineral compounds
• Botanical extracts

The idea behind this type of formula is to approach nighttime support from several angles rather than relying on one ingredient alone.

But the actual effectiveness of the finished product cannot be determined simply by adding together studies on individual ingredients.

Yu Sleep Ingredients Explained

Now let’s look at the formula ingredient by ingredient.

1. Melatonin

Amount listed: 0.9 mg per serving

Melatonin is probably the best-known ingredient in Yu Sleep.

It is a hormone naturally involved in regulating the body’s sleep-wake cycle.

Unlike many sleep supplements that use several milligrams of melatonin, Yu Sleep’s current label lists 0.9 mg per serving.

That’s an important detail because more melatonin doesn’t automatically mean better results.

The goal of melatonin supplementation is generally related to influencing sleep timing and the body’s circadian system, rather than acting like a conventional sedative.

What we like

The relatively low listed amount makes the formula different from many high-dose melatonin products.

What to remember

Individual responses to melatonin vary, and taking more isn’t necessarily better.

2. Red Tart Cherry Juice Concentrate

Red tart cherry is included in the proprietary blend.

Tart cherries have attracted scientific interest because they naturally contain compounds associated with sleep, including naturally occurring melatonin.

Research has investigated tart cherry products in relation to sleep and melatonin levels, although research on an individual ingredient should not be interpreted as proof that Yu Sleep itself produces the same results.

The current Yu Sleep label does not disclose exactly how much tart cherry concentrate is present.

Why is it included?

The ingredient is generally associated with the formula’s broader sleep-support approach.

Important limitation

We cannot determine the exact dose from the current label.

3. Magnesium Glycinate

Magnesium glycinate is another ingredient included in the proprietary blend.

Magnesium is an essential mineral involved in numerous physiological processes, including normal nerve and muscle function.

The glycinate form combines magnesium with glycine.

Yu Sleep does not currently disclose the individual amount of magnesium glycinate inside its 637 mg blend.

That’s important because the amount of magnesium actually supplied by a magnesium compound can differ substantially from the total weight of the compound.

Our view

Magnesium is a reasonable ingredient to see in a nighttime formula.

However, without the individual dose, it’s difficult to determine how much magnesium the product actually provides.

4. Apigenin

Apigenin is a naturally occurring flavonoid found in several plants, including chamomile.

It is commonly discussed in connection with relaxation and sleep research.

Yu Sleep includes apigenin within its proprietary blend, but the current label doesn’t specify its individual quantity.

That means we can confirm that apigenin is part of the formula, but we cannot determine from the label whether its amount matches the dose used in a particular study.

5. Lemon Balm Extract

Lemon balm is a botanical ingredient traditionally associated with relaxation and calmness.

It’s another ingredient that fits naturally into a nighttime supplement formula.

However, as with several other Yu Sleep ingredients, the current label groups lemon balm into the 637 mg proprietary blend without giving its individual amount.

So the ingredient’s presence is clear, but its dosage isn’t.

6. 5-HTP

5-HTP, or 5-hydroxytryptophan, is included in Yu Sleep through Griffonia seed extract.

5-HTP is a precursor involved in serotonin production, which is one reason it appears in some supplements marketed around mood and sleep.

However, this is also one of the ingredients that deserves extra caution.

Because 5-HTP can influence serotonin pathways, people taking medications that also affect serotonin should discuss the combination with a healthcare professional before using a product containing 5-HTP.

This can include certain antidepressants and other serotonergic medications.

The individual amount of 5-HTP in Yu Sleep isn’t disclosed on the current label.

This is an important point

The fact that the amount isn’t disclosed makes it more difficult for consumers to evaluate their individual exposure.

If you’re taking prescription medication, don’t assume that a supplement is automatically safe simply because it is marketed as “natural.”

7. L-Theanine

L-theanine is an amino acid naturally associated with tea leaves.

It’s commonly included in relaxation and sleep-support formulas because of research examining its relationship with relaxation and stress.

Yu Sleep includes L-theanine in the proprietary blend.

Again, though, the current label does not specify the individual amount.

So we can evaluate the ingredient’s general research background, but we can’t confidently compare the amount in Yu Sleep with the exact doses used in individual studies.

8. GABA

GABA stands for gamma-aminobutyric acid.

GABA is a neurotransmitter involved in the nervous system and is commonly associated with relaxation.

It’s another ingredient included in the Yu Sleep proprietary blend.

One important point is that research on an isolated ingredient does not automatically establish that a finished supplement containing that ingredient will produce a specific outcome.

The entire formulation, dose, delivery method, and individual response matter.

9. Vitamin B2

Amount listed: 0.5 mg per serving

Vitamin B2, also called riboflavin, is an essential vitamin involved in normal energy metabolism and other biological processes.

The current Yu Sleep supplement facts panel lists 0.5 mg per serving, equivalent to 38% of the Daily Value.

Unlike the seven proprietary-blend ingredients, the amount of vitamin B2 is clearly disclosed.

10. Vitamin B6

Amount listed: 0.5 mg per serving

Vitamin B6 is involved in numerous biological processes, including neurotransmitter metabolism.

Yu Sleep lists 0.5 mg per serving, equivalent to 29% of the Daily Value.

Again, the amount is clearly stated on the label.

The Biggest Issue With the Yu Sleep Ingredient List

This is the part I would pay the most attention to when evaluating the formula.

Yu Sleep clearly identifies the ingredients.

But seven of them are grouped into a 637 mg proprietary blend.

That means the label tells you:

These ingredients are included.

But it doesn’t tell you:

Exactly how much of each ingredient you’re receiving.

The current product information confirms the combined 637 mg amount but does not separately disclose the quantities of red tart cherry, magnesium glycinate, apigenin, lemon balm, 5-HTP, L-theanine, and GABA.

Why does this matter?

Because ingredient research often studies specific amounts.

If a study examines 200 mg of an ingredient, for example, you cannot assume that Yu Sleep provides 200 mg simply because that ingredient appears on the label.

That’s why ingredient presence and clinically studied dosage are two different things.

Does Yu Sleep Have a Proprietary Blend?

Yes.

According to the current supplement facts information, seven ingredients are combined into a 637 mg proprietary blend.

Some third-party pages currently describe the formula differently, so we would recommend using the physical product label and current supplement facts panel as the final reference when checking the ingredients.

This is especially important because online product pages can change.

Are the Yu Sleep Ingredients Natural?

The formula contains several plant-derived or naturally occurring ingredients, including:

• Red tart cherry
• Lemon balm
• Apigenin
• L-theanine
• 5-HTP from Griffonia seed

It also contains vitamins, melatonin, magnesium glycinate, and GABA.

However, “natural” doesn’t automatically mean “safe for everyone.”

A natural compound can still interact with medications or cause unwanted effects in certain people.

That’s particularly relevant to ingredients such as 5-HTP.

Are Yu Sleep Ingredients Safe?

For many healthy adults, the individual ingredients may be familiar compounds used in dietary supplements.

But safety depends on the person, dosage, medications, medical conditions, and combination of ingredients.

The biggest point we’d emphasize is 5-HTP.

If you’re taking antidepressants or other medications that affect serotonin, speak with a healthcare professional before using a supplement containing 5-HTP.

People who are pregnant, breastfeeding, have a medical condition, or take prescription medications should also discuss supplements with an appropriate healthcare professional.

What We Like About the Yu Sleep Formula

There are several positive aspects worth recognizing.

1. Low listed melatonin dose

The current label lists 0.9 mg of melatonin rather than an extremely high dose.

2. Multiple types of ingredients

The formula combines vitamins, botanical compounds, amino-acid-related ingredients, magnesium, and melatonin.

3. Clear identification of the ingredients

The label identifies the seven ingredients inside the proprietary blend rather than hiding them under a generic name.

4. Some amounts are clearly disclosed

Vitamin B2, vitamin B6, and melatonin have specific amounts listed.

What Concerns Us?

The main concern is dose transparency.

Seven ingredients are grouped together into one 637 mg blend.

That makes it difficult for consumers to determine exactly how much of each compound they’re taking.

The presence of 5-HTP also means medication interactions deserve attention.

Finally, research on individual ingredients shouldn’t be presented as proof that the finished Yu Sleep formula produces a particular result.

Yu Sleep Ingredients: Our Verdict

Still interested in Yu Sleep?

If you’ve reviewed the positive experiences, negative feedback, complaints, and other considerations discussed in this article, you can visit the official product page and make your own informed decision.

→ Learn More About Yu Sleep

After examining the current ingredient information, we’d describe Yu Sleep as a multi-ingredient sleep-support formula with a relatively transparent ingredient list but incomplete individual dose disclosure.

The formula contains several ingredients commonly associated with relaxation and sleep research.

The 0.9 mg melatonin dose is clearly disclosed.

Vitamin B2 and B6 are also individually disclosed.

The biggest limitation is the 637 mg proprietary blend, because the individual amounts of seven ingredients aren’t provided on the current supplement facts panel.

That doesn’t automatically mean the formula is ineffective.

It simply means consumers can’t independently determine the dose of each ingredient from the label.

Our bottom line

Yu Sleep has an interesting ingredient profile, but we would like to see greater dose transparency for the proprietary blend.

If you’re considering the product, look at the complete label, consider the ingredients individually, and pay particular attention to potential medication interactions.

Frequently Asked Questions

What are the main Yu Sleep ingredients?

The current formula lists melatonin, vitamin B2, vitamin B6, red tart cherry juice concentrate, magnesium glycinate, apigenin, lemon balm extract, 5-HTP, L-theanine, and GABA.

How much melatonin is in Yu Sleep?

The current supplement facts panel lists 0.9 mg of melatonin per serving.

Does Yu Sleep contain magnesium?

Yes. Magnesium glycinate is included in the proprietary blend, but its individual amount is not separately disclosed on the current label.

Does Yu Sleep contain 5-HTP?

Yes. 5-HTP derived from Griffonia seed extract is included in the proprietary blend.

Does Yu Sleep contain GABA?

Yes. GABA is one of the seven ingredients included in the 637 mg proprietary blend.

Are Yu Sleep ingredients clinically proven?

Some individual ingredients have been studied, but research on an individual ingredient does not prove that the finished Yu Sleep formula will produce the same results. The dose and combination of ingredients matter.

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