Q: Is this product suitable for daily use? A: It depends on the product type and your skin/hair tolerance. Gentle moisturizers, cleansers and sunscreens may be used daily; retinoids and exfoliating acids should be introduced gradually. Q: Can sensitive skin use it? A: Sensitive skin should patch test first and start slowly. If stinging, burning, swelling or persistent redness appears, stop use and consult a dermatologist/pharmacist. Q: Can I use it while pregnant or breastfeeding? A: For pregnancy or breastfeeding, check with your doctor first, especially if the product contains retinoids, exfoliating acids, strong brightening actives or other intensive ingredients. Q: Where does it fit in my routine? A: Use it according to texture and product type: cleanser first, toner next, serum/ampoule, cream, then sunscreen in the morning. Q: Can I layer it with other products? A: Yes, but keep layering simple. Avoid adding too many strong actives at once, especially if your skin is sensitive.