We built a French beauty AI chatbot over 9 weeks — providing expert skincare consultation, shade matching, routine building, and fragrance discovery in native French. (1) Skincare expertise AI: ingredient knowledge — AI trained on cosmetic ingredient database covering 8,000+ INCI ingredients with French-language explanations of function, concentration, and interaction rules. Understanding "acide hyaluronique" (hyaluronic acid), "niacinamide," "rétinol" and their compatibility and usage protocols. Skin assessment: conversational skin analysis — skin type (grasse, sèche, mixte, normale, sensible), concerns (rides, taches, pores, rougeurs, acné), current routine, and ingredient sensitivities assessed through 2-minute dialogue. Routine building: personalised skincare routine — morning and evening, step by step, with specific product recommendations from the 18,000 SKU catalogue. "Pour votre peau mixte avec des taches pigmentaires, voici votre routine du matin: nettoyant doux, sérum vitamine C, crème hydratante SPF50.
" Ingredient safety: AI flagging ingredient conflicts (retinol + AHA in same routine, certain ingredients contraindicated during pregnancy) and providing scientifically accurate guidance. (2) Shade matching: photo analysis — customers uploading selfie for AI skin tone analysis, with foundation shade recommendation across 400+ brands. Not just "you're shade 3" but "in Nars, you're Barcelona; in La Roche-Posay, you're Beige Rosé; in MAC, you're NC30." Undertone identification: warm, cool, neutral, and olive undertone detection informing foundation, concealer, and lip colour recommendations. Virtual try-on integration: chatbot connecting to AR try-on for lipstick, blush, and eye shadow — "essayez-le" (try it on) within the conversation. (3) Fragrance discovery: olfactory profiling — conversational fragrance assessment replacing the in-store smelling experience. "Do you prefer floral or woody? Light daytime or intense evening? Sweet or fresh?" building an olfactory profile from preferences and past purchases.
Note translation: translating abstract fragrance language into concrete preferences — customers saying "something warm and cozy for winter" → AI recommending oriental and amber fragrances with specific product suggestions. Sampling: AI recommending discovery sets and samples before full-size purchase — reducing fragrance return rate through try-before-commit approach. (4) French beauty culture integration: pharmacie culture: understanding the French parapharmacie approach — recommending La Roche-Posay Effaclar for acne-prone skin with the same authority a pharmacien would, explaining why, and suggesting the complete routine. Soldes strategy: during les soldes (January and June-July), AI helping customers build shopping lists based on routine needs and sale availability — "votre sérum habituel est en soldes — c'est le moment de faire un stock" (your usual serum is on sale — time to stock up).
Seasonal: French beauty seasonal calendar — protection solaire (sun protection) in summer, cold-weather hydration in winter, and pre-holiday glow routines for fêtes de fin d'année. (5) RGPD and CNIL: skin data sensitivity — facial analysis data processed transiently, not stored, per CNIL guidance on biometric-adjacent data. Consent: explicit consent for skin profile data storage and personalisation with clear CNIL-aligned privacy notice. Purpose limitation: skin assessment data used only for product recommendation, not sold or shared. Deletion: complete profile deletion through chatbot conversation.