You have to be careful as there is so many terms now what therapists call the different types of lashes and we always recommend to explain to your clients exactly what they are getting and how long they last.
Semi permanent lashes are applied by isolating and they can last 2-3 months with regular infills every 2-3 weeks.
Express lashes are single extensions but applied in a different technique. They should be removed after 2 weeks
Cluster lashes should only be worn for a short period which is why they are often referred to as weekend lashes even though some clients manage up to a week without damage to the natural lash.
Party lashes/strip lashes are supposed to be only worn one day and removed at night.
Due to the nature of the different lash types you need to apply them with different glues, ie semi permanent lashes can be applied with different types but express lashes with open eye technique must be applied with a sensitive or odour/fume free glue which needs to be removed by a qualified therapist whilst cluster and strip lashes need a completely different glue so that the lashes can be removed by the client at home.
We would never recommend any client removing semi permanent or express lashes at home as the remover is a professional product and should only be used by a therapist, it is far too strong to be retailed and you might find that the insurance will not cover you for selling this to clients either.