Sparkal JournalSkincare guides and notes from the Sparkal team.https://sparkal.app/Skincare Ingredients You Shouldn't Mix (and How to Use Them Anyway)https://sparkal.app/blog/skincare-ingredients-you-should-not-mix/https://sparkal.app/blog/skincare-ingredients-you-should-not-mix/Retinol and AHAs, vitamin C and benzoyl peroxide, too many exfoliants: the common skincare clashes, why they happen, and simple ways to fit both into one routine.Thu, 15 Oct 2026 00:00:00 GMTHow AI Skin Analysis Works: What a Selfie Can (and Can't) Tell Youhttps://sparkal.app/blog/how-ai-skin-analysis-works/https://sparkal.app/blog/how-ai-skin-analysis-works/What an AI skin analysis app actually measures from a photo, how to get consistent results, and where its limits are. A plain guide to hydration, redness, clarity, oiliness, texture and tone scores.Wed, 14 Oct 2026 00:00:00 GMT