Ultra Super Glue For Eyelash Extension Professional Use Only!!!!!!! Fume Color of glue : Black Drying time: 1-2seconds Adhesive strength: 5-6 weeks Content:5ml Attention!!! The glue is ultra super, so it may cause burning (most of the customers use them very well )If your & your client are PARTICULARLY SENSITIVE please use Blue Cap Only. How to keep Glues :Keep away from Sunlight, Moisture and heat.And keep the glue caps very tight between uses. Glue must be stored in cool shade place. Keep the glues in an air-tight container with a silica pack to draw out moisture. Notice! : Don't store adhesive in the fridge once you've opened it. Once the seal has been broken condensation will form in teh bottle when the glue is reintroduced to room temperature from the fefrigerator.(Moisture curing the glue in the inside of your bottle would be very bad)And we recommend around 50%~60% humidity.However, you can store adhesive in the Freezer before opening to prolong shelf life.And make sure to thaw the bottle before opening(by letting it sit in room temp for a minimum of 4 hours.) Expiration for Glues : Unopened glue shelf life is around 6 months but one opened, shelf life is around 2~3 months. Glue Pin :There will be a red pin in the package. Use this Pin for blockage of the entrance if glue is dried up. IB Fast Drying Glue Professional Adhesive for False Eyelashes Extension Glue Long Time Keep over 50days