ibeauty Glue has a quick drying time of 2 seconds, and lasts up to 5-6 weeks 5℃--10℃ would be the perfect condition to keep.If you keep in the cold storage, you can use glue longer Low taste, Low stimulation Ideal Application Conditions: 70-72F with humidity of RH 50-70% This glue may not be suitable for people with sensitive eyes. If you feel unwell, stop using it and rinse immediately with water or saline solution. If discomfort persists, consult a doctor.