We add a "Skin Consultation" product to your shop. Your customer can link to a professional looking and branded Consultation Form where they will be ask to provide all the information you need to recommend the appropriate skin care products. When the customer submits the completed form you will be notified via an app alert and will be able to view the response with photo's directly via your phone.
You can opt to charge for this service or provide for free. Once purchased by the customer they can download a branded Pdf which will contain a "Discount code" That can be used to buy the recommended products.