This guide takes a closer look at the complete Yu Sleep formula, ingredient by ingredient, based on information listed by the manufacturer. It's part of our independent educational series and is not affiliated with or published by the Yu Sleep manufacturer.
Product Format & Serving
Yu Sleep is formulated as a liquid, taken with a dropper rather than swallowed as a capsule or gummy. According to manufacturer information, a full serving is measured across two droppers, generally taken a short time before bed. Always confirm current serving instructions on the product label or the manufacturer's product page, since formulations can be updated over time.
Understanding The Proprietary Blend
Most of Yu Sleep's ingredients are combined into what's labeled as a proprietary blend. This is a common practice across the supplement industry: individual ingredient amounts within the blend are not separately disclosed, only the total blend weight. Melatonin, vitamin B6 and vitamin B2 are reportedly listed with individual amounts outside the blend. Proprietary blend labeling makes it harder to compare exact ingredient amounts between competing products — something worth keeping in mind as you research.
Ingredient-By-Ingredient Breakdown
Melatonin
Reported at approximately 0.9 mg per serving, on the lower end of the range typically seen in melatonin supplements. See our full Melatonin Explained guide.
Magnesium Glycinate
A chelated, generally well-tolerated form of magnesium included within the proprietary blend. See our Magnesium Glycinate and Sleep guide.
L-Theanine
A tea-derived amino acid associated with calm, non-sedating relaxation. See our L-Theanine guide.
GABA
An inhibitory neurotransmitter included for its association with calming nervous system activity, though how much orally supplemented GABA crosses the blood-brain barrier remains debated among researchers. See our full GABA and Sleep guide.
Red Tart Cherry Extract
A fruit-derived ingredient naturally containing trace melatonin and antioxidant compounds. See our Tart Cherry and Sleep guide.
Apigenin
A plant flavonoid found in chamomile and parsley, studied in preliminary (often animal or lab-based) research for calming receptor interactions.
Lemon Balm Extract
An herb with a long history of traditional use for mild nervous tension, often paired with other calming botanicals. See our full Lemon Balm and Sleep guide.
5-HTP
A compound derived from tryptophan that sits upstream of serotonin and melatonin production in the body. Notably, 5-HTP can interact with certain medications, including some antidepressants.
Vitamin B6 & Vitamin B2
Included in small, individually listed amounts. These are general wellness co-factors supporting nervous system and metabolic function, not typically described as sedative on their own.
How To Read A Supplement Facts Label
- Look for which ingredients have individually listed amounts versus those grouped into a blend.
- Compare melatonin dose against other products you're considering — more is not automatically better. See our Melatonin vs. Non-Melatonin guide for more on how these approaches differ.
- Check the "other ingredients" list for preservatives, sweeteners or allergens relevant to you.
- Note the suggested serving size and whether it matches how you intend to use the product.
For a more detailed, step-by-step walkthrough of reading a Supplement Facts panel — including a worked example — see our full How to Read a Sleep Supplement Label guide.
Before You Decide
This breakdown is intended to help you evaluate Yu Sleep's formula with an informed eye — not to suggest that any single ingredient, or the product as a whole, has been proven to treat or cure a sleep condition. For the most current supplement facts and to purchase, visit the Yu Sleep product page.
Affiliate disclosure: We may earn a commission if you purchase through links on this website, at no additional cost to you.