Start with a patch test, then build your routine
Apply new products to a small area of skin for a day or two before full use. Layer products from lightest to richest, cleansing first and finishing with moisturiser, and store each product as its label directs, away from direct sunlight and heat. Ingredients and directions are listed on every product page.
If you have sensitive skin or a skin condition, check the ingredient list and speak with a qualified health professional before starting a new routine.