Yu Sleep Ingredients: Full Label Explained

When something goes into your evening routine, you should be able to read what is in it. This page works down the Yu Sleep Supplement Facts panel one entry at a time, using the label details the seller publishes on its order page.

Want the overview first? Open the main Yu Sleep guide and return here when you want the detail.

The Supplement Facts panel

A serving is 2 mL, meaning two full droppers, and each bottle gives about 30 of them. The panel reads as follows.

Ingredient	Amount per 2 mL
Riboflavin 5-phosphate, as vitamin B2	0.5 mg
Pyridoxal 5-phosphate, as vitamin B6	0.5 mg
Melatonin	0.9 mg
Proprietary blend	637 mg

The blend itself holds tart cherry juice concentrate, magnesium glycinate, apigenin, lemon balm extract, GABA, L-theanine and 5-HTP (Griffonia seed extract). We quote the amounts and leave the percent daily value column aside.

The liquid base is glycerin and distilled water, with erythritol, medium invert syrup, natural flavors, citric acid, sodium citrate, potassium sorbate, xanthan gum and gum arabic.

What each ingredient is commonly used for

On the seller’s telling, the formula is built to help you unwind, drift off and sleep more deeply and restfully. The notes below come from general references on each ingredient, and none of them is a promise or something we tested.

Melatonin

Melatonin (0.9 mg a serving) is the hormone your body releases as evening comes on. Few ingredients are as familiar in bedtime routines, which is why it features in the safety notes below.

Red tart cherry

A fruit ingredient that turns up often in evening drinks and routines. It sits in the blend, so its exact share is not published.

Magnesium glycinate

Magnesium is an essential mineral, and the glycinate form pairs it with the amino acid glycine. Many people reach for it in the evening hours.

Apigenin

This plant compound is present in foods like chamomile and shows up in many calming herb blends.

Lemon balm extract

A leafy herb in the mint family, lemon balm has long been brewed into soothing teas and has been studied for relaxation.

5-HTP

This one is taken from Griffonia seeds, and the body uses it on the way to making serotonin. For that reason, anyone on an antidepressant should talk to a doctor first.

L-theanine

An amino acid found naturally in tea leaves, often taken for a relaxed, unhurried feeling.

GABA

Gamma-aminobutyric acid is a compound the body makes naturally, and supplement makers include it for its studied link to relaxation.

Vitamins B2 and B6

Riboflavin (B2) and vitamin B6 are B vitamins involved in everyday metabolism. The label uses the 5-phosphate form of each, at 0.5 mg apiece.

What the label makes easy

Because every ingredient is named, you can put Yu Sleep next to a melatonin-only product or a magnesium bottle and see exactly what differs. One thing to keep in mind is that the blend’s seven ingredients share one 637 mg total, so their individual amounts are not shown.

The liquid itself

There is no capsule here, only a liquid, so no shell to swallow. The base is water and glycerin, with erythritol, medium invert syrup and natural flavors for taste, citric acid and sodium citrate for balance, gums for texture and potassium sorbate to keep it fresh.

Who should read the label twice

Two entries deserve a second look: melatonin and 5-HTP. Anyone on a blood pressure drug, an antidepressant or a medicine for sleep or anxiety, and anyone expecting or breastfeeding, should have a doctor’s go-ahead first. Yu Sleep is for adults. Prescriptions continue as directed, and our safety guide lists the questions to bring along.