Why Five Ingredients Are Enough (and Six Might Be Too Many)
Sensitive skin reacts to what's in a formula, not what's missing. Here's why Derrin's five-ingredient cap is a feature, not a limitation — and what each ingredient earns its place.
Read →Sensitive Skin Science
Research-backed guides for reactive, sensitive, and seborrheic-dermatitis-prone skin — written without brand bias.
Sensitive skin reacts to what's in a formula, not what's missing. Here's why Derrin's five-ingredient cap is a feature, not a limitation — and what each ingredient earns its place.
Read →Seborrheic dermatitis isn't caused by dryness — it's caused by Malassezia yeast overgrowth. Most moisturizers make it worse. Here's how to read a label and find formulas that actually help.
Read →Ready to try Derrin?
Join 1,200+ on the waitlist.