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COSRX · Toners

Hyaluronic Acid Hydra Power Essence

$17.5·100 ml·Leave-on
100
Low concern

Why this score

Concern55 / 55
  • No ingredients carry meaningful, evidence-backed concern.

How much genuine, cited concern the ingredients carry, weighted by how much of each is likely present and whether the product stays on or rinses off.

Transparency20 / 20
  • No hidden fragrance blend.

Whether the full ingredient list, and any fragrance, are actually disclosed.

Formulation restraint25 / 25
  • No needless irritants or fragrance allergens for this product type.

Needless irritant or allergen load for the product type. A clean, purposeful formula scores well without any "free-from" theater.

Scored by PlainBody Editorial against the PlainScore method · Label checked July 2026

What’s inside

Butylene GlycolCommonly feared, low concern

A lightweight humectant and solvent similar in role to propylene glycol, used to carry actives and give lotions a lighter feel. CIR has reviewed it and considers it safe as used in cosmetics.

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GlycerinGenerally safe

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

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Hyaluronic AcidGenerally safe

A humectant that holds water at the skin surface for a more hydrated look. No safety concern.

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PanthenolGenerally safe

A soothing humectant that helps skin and hair look conditioned. Very well tolerated.

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EthylhexanediolGenerally safe

A versatile eight-carbon alcohol used as a humectant and solvent in skincare and cosmetics. Published assessments support its safe use at concentrations found in cosmetic products.

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Cosmetic information for general education, not medical advice. Concern ratings are evidence-graded and cited on each ingredient page. See how we score.