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Yu Sleep Ingredients: Formula & Evidence Guide

Detailed Yu Sleep ingredient guide based on the supplied Supplement Facts label, including label amounts, proprietary blend limitations and research links.

Last updated September 9, 2026Written by Yu Sleep Research Editorial TeamIndependent affiliate site

The supplied Yu Sleep label lists vitamin B2, vitamin B6 and melatonin separately, followed by a 637 mg proprietary blend. The individual quantities of the ingredients inside the proprietary blend are not disclosed.

Label itemAmount per serving% Daily Value
Vitamin B2 (Riboflavin 5-phosphate)0.5 mg38%
Vitamin B6 (Pyridoxal 5 Phosphate)0.5 mg29%
Melatonin0.9 mgDaily Value not established
Proprietary Blend637 mgDaily Value not established
Yu Sleep Supplement Facts label

Proprietary blend ingredients

In label order: red tart cherry juice concentrate, magnesium glycinate, apigenin, lemon balm extract, 5-HTP (Griffonia seed extract), L-theanine and GABA.

What the label tells us

We know the combined blend weight is 637 mg per serving and we know the ingredients are listed by name.

What the label does not tell us

It does not give the individual dose of tart cherry, magnesium glycinate, apigenin, lemon balm, 5-HTP, L-theanine or GABA. That makes direct dose-to-study comparisons difficult.

Ingredient evidence library

Evidence limitation: studies on an individual ingredient do not prove that the finished Yu Sleep formula produces the same result.

References

  1. Yu Sleep — current vendor sales page (pricing, package presentation, guarantee and vendor claims; checked September 2026).
  2. Yu Sleep refund policy (current 60-day policy and return instructions).
  3. Yu Sleep shipping policy (delivery and shipping information; wording should be rechecked at checkout because vendor pages contain inconsistent shipping-fee statements).
  4. NCCIH: Melatonin — What You Need to Know.
  5. NCCIH: Sleep Disorders and Complementary Health Approaches.
  6. NIH Office of Dietary Supplements: Dietary Supplement Fact Sheets.
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