This adhesive is NOT affected by temperature or humidity! Thats right, throw the humidifier away because you will no longer have to worry about the environment you work in. Whether humidity is below 20%RH or higher than 50%RH, the glue works amazing! It attaches to the natural lashes without any issues. Bonus of the glue is that it makes lash wrapping a BREEZE. With very minimal effort the fans wrap around the natural lashes! This glue is perfect for beginner or advanced techs. FREE RETENTION GUIDE if you purchase: 2 Pack of Adhesives Adhesive + Bonder Adhesive + Bonder+Primer Retention Guide will be available to download after you purchase Glue Properties: 5ml bottle Color: clear Dry time: .5-1sec Retention: 8-9 weeks Fumes: moderate Viscosity: medium Shelf Life: Adhesives can last 3-6 months if stored correctly. Do not store in rooms hotter than 75° Shake before using Storage Conditions: 30-50% Shelf Life: 6 months unopened; 3 months after opening For professional use only. We are not responsible for improper use. Note: FINAL SALE. NO REFUNDS OR EXCHANGES.