There are three points to consider: First, your client may have not followed the aftercare and has exposed their lashes to hot water, steam, shampoos, cleansers, eye creams or serums within the first 24 hours. Second, your product was not rinsed off well enough when you removed the product. Third, Your lash lift was not dried well enough during the appointment to show you the full extent of the lift. As the lashes are wet after the treatment they will be weighed down by the weight of the water on the lashes, once they begin to dry they may show over processing or incorrect lash placement on the silicone rod. Be sure to dry well your client’s lashes before they leave.