Kate Somerville vs SkinCeuticals — side by side, no bias.
Our pick
C E Ferulic
9.2/10 · SkinCeuticals
| EradiKate 10% Sulfur Acne Treatment | C E Ferulic | |
|---|---|---|
| Brand | Kate Somerville | SkinCeuticals |
| Category | serum | serum |
| Editor Rating | 8.5/10 | 9.2/10 ★ |
| Category | serum | serum |
| Texture | Pink, sediment-bottom spot treatment (shake to mix) | Thin golden serum |
| Finish | Visible pink dot — meant to be left on at night | Absorbed slightly tacky |
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| Verdict | The cult acne spot treatment — 10% sulfur (the highest OTC concentration) sitting at the bottom of the bottle, mixed with calamine and zinc. Apply with a Q-tip to active spots before bed; in the morning the whitehead is shrunken or gone. Smells like sulfur (can't disguise that), but works on inflammatory acne in a way few topicals match. | The benchmark vitamin C serum the entire industry measures itself against. 15% L-ascorbic acid + 1% vitamin E + 0.5% ferulic acid — the Duke University antioxidant patent that spawned a thousand dupes. $182 is painful, but the 20-year clinical dataset on photoaging reversal is unmatched. Every derm office in America has a bottle on the shelf. |
