Zzzquil Nighttime Sleep Aid Liquid Warming Berry supplement bottle
Zzzquil

Nighttime Sleep Aid Liquid Warming Berry Review

What We Researched
1 active ingredient analyzed · 12 inactive ingredients decoded · 1 brand certification checked · Page generated: Sep 2026
53
Product Score Poor
63
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Diphenhydramine Hydrochloride USP 50 mg —
Bioavailability Excellent

Absorption Rating

  • Diphenhydramine Hydrochloride USP Good
Other Ingredients Poor

Fillers & Additives

  • Alcohol Medium
  • Citric Acid
  • FD&C Blue No. 1 High
  • FD&C Red No. 40 Low
  • Flavour
  • High fructose corn syrup
  • Polyoxyl 40 stearate
  • Propylene Glycol
  • Purified Water
  • Saccharin sodium
  • Sodium Benzoate Medium
  • Sodium Citrate
Efficacy Very Poor

Dosage Analysis

  • Diphenhydramine Hydrochloride USP 50 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Diphenhydramine Hydrochloride USP 50 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Alcohol Caution

It is used to dissolve ingredients and as a preservative.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

FD&C Blue No. 1 Generally_safe

It is used to add color to the supplement.

FD&C Red No. 40 Caution

It is used as a red colorant.

Flavour Unknown
High fructose corn syrup Unknown
Polyoxyl 40 stearate Unknown
Propylene Glycol Generally_safe

It is used as a solvent to dissolve ingredients.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Saccharin sodium Unknown
Sodium Benzoate Caution

Prevents bacterial and fungal growth in liquid supplements.

Sodium Citrate Safe

Stabilizes pH and helps maintain ingredient effectiveness.

Brand Trust Report
Zzzquil

Founded 2012 · Cincinnati, Ohio, United States · 14 products · zzzquil.com/en-us

Certifications

1 certification
Gluten Free Gfco Verified evidence Primary evidence

Transparency

2 claims
In House Testing — Claimed Brand claim; evidence unavailable

Violation History

3 incidents
Lawsuit Falsely advertising ZzzQuil melatonin sleep aid products as 'natural' when they contain synthetic ingredients.2025 Source available Primary source
Lawsuit Misleadingly marketing ZzzQuil nighttime sleep aid products as 'non-habit forming'.2025 Source available Primary source
Lawsuit Vicks ZzzQuil Pure Zzzs melatonin supplements are significantly overdosed.2022 Source available Primary source
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Frequently Asked Questions
Is Zzzquil Nighttime Sleep Aid Liquid Warming Berry a good supplement?

Zzzquil Nighttime Sleep Aid Liquid Warming Berry received a product quality score of 53/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 1 active ingredients Of the 12 inactive ingredients, 5 are rated safe and 3 ingredients are flagged for review. The manufacturer, Zzzquil, holds a brand trust score of 63/100 with 1 verified certifications including Gluten Free Gfco.

What are the ingredients in Zzzquil Nighttime Sleep Aid Liquid Warming Berry?

Zzzquil Nighttime Sleep Aid Liquid Warming Berry contains 1 active ingredients: Diphenhydramine Hydrochloride USP (50 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Zzzquil Nighttime Sleep Aid Liquid Warming Berry safe to take?

GoodSupp reviewed the inactive-ingredient data available for Zzzquil Nighttime Sleep Aid Liquid Warming Berry. Of 12 inactive ingredients, 5 are rated safe. 3 ingredients are flagged for review: Alcohol, FD&C Red No. 40, Sodium Benzoate. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Zzzquil a trustworthy supplement brand?

Zzzquil receives a brand trust score of 63/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2012 and headquartered in Cincinnati, Ohio, United States, the company offers 14 products in their lineup. They hold 1 verified certifications including Gluten Free Gfco. The linked records document particular certification scopes; they do not prove that every product or batch was independently tested for contents, purity, or effectiveness. Note: Zzzquil has 3 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.