Formulation Audit · Kate Somerville · 10% Sulfur, Salicylic Acid & Zinc Oxide Overnight Blemish Suspension · $29 USD
EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension)
- Skin Suitability
- Oily and acne-prone skin needing targeted overnight spot drying on intact pustules (never apply all-over or on picked/open lesions)
- Chemical Equivalent
- Mario Badescu Drying Lotion (~$18 — Calamine + Sulfur + Salicylic Acid) or De La Cruz 10% Sulfur Ointment (~$6 — alcohol-free PEG base)
- Molecular Incompatibilities
- Same-spot Tretinoin, Adapalene or Benzoyl Peroxide (10% Sulfur + Isopropyl Alcohol + Salicylic Acid + Camphor cause localized chemical crusting) · Sulfur or Camphor contact allergy and compromised/rosacea barriers
Section V · Regimen Clash Check
Will EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension) Clash With Your Routine?
Add the rest of your routine after Kate Somerville EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension) and run the check — it cross-examines retinoids, acids, vitamin C, spicules and occlusives, privately in your browser.
Empirical Buyer Synthesis
What Buyers Actually Report
[r/SkincareAddiction] [r/Acne]: Biphasic 10% Sulfur + Zinc Oxide + Salicylic Acid pink sediment flattens inflamed pustules overnight by keratolysis and sebum absorption, but dermatology threads warn against shaking the bottle or dabbing over broken skin because the #1 inactive solvent is concentrated Isopropyl Alcohol paired with Camphor.
Verbatim INCI Composition
Full Ingredient List
Sulfur 10.0%, Isopropyl Alcohol, Aqua/Water/Eau, Zinc Oxide, Camphor, Magnesium Aluminum Silicate, Salicylic Acid, CI 77491 (Iron Oxides)
Source: incidecoder.com. Check the pack — formulas change.
Section V · Compare
Compare Against Peer Formulations
EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension) beside the closest formulations in the index — same active family first, then the nearest related one — with a routine-conflict and washout summary.
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EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension)
Kate Somerville · $29 USD
Exfoliating Acid · this dossier
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Skin Perfecting 2% BHA Liquid Exfoliant
Paula's Choice · $35 USD
Exfoliating Acid
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Glycolic Acid 7% Exfoliating Toner
The Ordinary · $13 USD
Exfoliating Acid
Field Notes
Frequently Asked Questions
Is Kate Somerville EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension) worth it?
Beauty.net verdict: Hidden Gem. Creator hype 87/100 against buyer efficacy 84/100. [r/SkincareAddiction] [r/Acne]: Biphasic 10% Sulfur + Zinc Oxide + Salicylic Acid pink sediment flattens inflamed pustules overnight by keratolysis and sebum absorption, but dermatology threads warn against shaking the bottle or dabbing over broken skin because the #1 inactive solvent is concentrated Isopropyl Alcohol paired with Camphor. Best for: Oily and acne-prone skin needing targeted overnight spot drying on intact pustules (never apply all-over or on picked/open lesions).
What should I not mix with Kate Somerville EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension)?
Same-spot Tretinoin, Adapalene or Benzoyl Peroxide (10% Sulfur + Isopropyl Alcohol + Salicylic Acid + Camphor cause localized chemical crusting) Sulfur or Camphor contact allergy and compromised/rosacea barriers Run your full routine through the Regimen Clash Check to catch other conflicts.
What is a cheaper dupe or chemical equivalent for Kate Somerville EradiKate Acne Treatment (10% Colloidal Sulfur + Salicylic Acid + Zinc Oxide Biphasic Suspension)?
Mario Badescu Drying Lotion (~$18 — Calamine + Sulfur + Salicylic Acid) or De La Cruz 10% Sulfur Ointment (~$6 — alcohol-free PEG base) Compare the INCI lists — a shared hero active matters more than the brand.