Party Lashes are a temporary fix. The adhesive used to adhere them lasts only 1 night or 2, however if you keep them away from water you can get up to 1-2 weeks wear out of them. Party Lashes are a small cluster of approximately 10 lashes, creating a much fuller volume look in a faster time. They are applied with a temporary latex glue in order to avoid damage your natural lashes, as they are applied to multiple lashes.True Eyelash Extensions is one single extension applied to one of your natural lashes creating a natural look. These extensions last 4-6 weeks and you can get them wet after 48 hours!