Zena Liquid Collagen + Biotin 30 Fluid Ounce
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This liquid collagen supplement contains beneficial protein content and uses natural sweeteners like monk fruit and stevia, which are preferable to artificial sweeteners. However, the presence of sodium benzoate as a preservative and the use of natural flavors, which lack transparency, slightly detract from its overall healthfulness. The product is moderately processed with several additives, which impacts its score.
Key ingredients 8
monk fruit extract (lou han guo)Very Good
Monk fruit extract is a natural sweetener with minimal impact on blood sugar levels, offering a healthier alternative to sugar.
malic acidGood
Malic acid naturally occurs in fruits and helps improve flavor and preserve freshness.
See more about malic acid →Purified waterNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
See more about Purified water →citric acidNeutral
Common acidulant and preservative — safe at typical use levels, neither beneficial nor harmful.
See more about citric acid →stevia leaf extractNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
See more about stevia leaf extract →natural flavorBad
Umbrella term that can hide dozens of undisclosed synthetic constituents.
See more about natural flavor →sodium benzoateBad
Sodium benzoate is a preservative that may cause concerns for some consumers due to potential sensitivities.
See more about sodium benzoate →potassium sorbateBad
Potassium sorbate is used as a preservative but has been associated with potential allergic reactions in sensitive individuals.
See more about potassium sorbate →Processing
Ultra-Processed Foods
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