Skip to content
Kose · Masks

Clear Turn Vitamin C Essence Mask

$14.99·Rinse-off
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.

Full ingredient details →
Dipropylene GlycolGenerally safe

A light, low-odor glycol used as a solvent and humectant, extremely common in Korean toners and essences. It has a low reported irritation rate and is graded low concern in published assessments.

Full ingredient details →
PropanediolGenerally safe

A corn-derived solvent and humectant that has largely replaced propylene glycol in "clean" formulas; CIR reviewed the alkane diol group and found use concentrations up to about 40 percent in leave-on products like deodorant sticks with no meaningful irritation signal.

Full ingredient details →
Disodium EDTACommonly feared, low concern

A chelating agent that binds trace metal ions to keep formulas stable and preservatives working properly. It is not a functional skincare "active" and only a very small amount is used, with minimal skin penetration expected.

Full ingredient details →
Citric AcidGenerally safe

Used in tiny amounts to set a product to skin-friendly pH. No concern at those levels.

Full ingredient details →
Sodium HydroxideGenerally safe

A strong alkali used in tiny amounts to adjust the pH of cosmetics to safe, skin-friendly levels. At the pH found in finished products, sodium hydroxide is neutralized and well tolerated.

Full ingredient details →
MethylparabenCommonly feared, low concern

A preservative that keeps products free of mold and bacteria. Reviewed repeatedly and considered safe at the low levels used.

Full ingredient details →

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