Key features of BL Ultra X glue BL Ultra X lash extension glue shows extra strong bond and retention. With 7-week retention, this semi-permanent lash glue is one of the best lash extension glues for beginner to experienced lash artists. The thin consistency of Ultra X glue gives you full control over the amount of glue you pick up. Thanks to its thin viscosity, the glue doesn’t clump, drag, or interfere with other lashes. Ultra X glue is freshly produced and stored in a room where the temperature and humidity are strictly regulated. The top quality storage and handling procedure ensures you receive the fresh glue with the best quality. Ultra X glue is the perfect eyelash extension adhesive for all lash artists as its extended 3-seconds drying time allows for proper attachment. BL Ultra X glue (5g) Lash brand you can trust BL Lashes, formerly known as Blink Lash, makes iconic lash glue for eyelash extensions. For over 10 years, BL Lashes has sold millions of bottles of premium eyelash extension adhesive all over the world. BL Lashes extension glues can be found in the eyelash extension kit of most reputable lash studios in over 70 countries. Ultra X glue by BL Lashes X-tra long lasting eyelash extension glue Working with lash extension glue that dries too fast can cause poor retention. Our maximum-strength Ultra X lash glue dries in 3 seconds. With a 3-second setting time, 7-week retention, and a moderate amount of fumes, this semi-permanent lash glue is the best lash extension glue for beginner to experienced lash artists. Our premium glues are produced in an ISO-approved facility using high-quality ingredients, which have been salon tested all over the world. 3 to 4-second drying time 7-week retention Black color Thin, seamless viscosity Moderate fumes Latex-free Ideal humidity: 45-60% Ideal temperature: 71-79° F (22-26°C) BL Ultra X glue (5g) With 5g of Ultra X glue, you can create 100 sets. (One bottle contains about 200 glue drops.) Shelf life: When unopened, 6 months/When opened, 1 monthEach glue comes in a zipper bag with UV protection that contains a glue pin and silica gel for optimum quality Mach glue (5g) Ultra X glue (5g) Ultra Plus glue (5g) Ultra Plus glue (10g) Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 3.6 out of 5 stars 90 4.0 out of 5 stars 310 3.9 out of 5 stars 1,795 3.9 out of 5 stars 1,795 Price $18.56$18.56 $22.28$22.28 $18.56$18.56 $25.99$25.99 Drying Time 1-2 sec 3-4 sec 3-4 sec 3-4 sec Retention up to 7 weeks up to 8 weeks up to 7 weeks up to 7 weeks Fume&Odors Strong Strong Medium Medium Viscosity Very Low / Thin Very Low / Thin Very Low / Thin Very Low / Thin Color Black Black Black Black Skill Level Expert Beginner - Expert Beginner - Expert Beginner - Expert Ideal Temperature 71-79°F (22-26°C) 71-79°F (22-26°C) 71-79°F (22-26°C) 71-79°F (22-26°C) Ideal Humidity 45-70% 45-70% 45-70% 45-70% Recommended extension Type Classic, Handmade volume, Premade volume fan Classic, Premade volume fan Classic, Premade volume fan Classic, Premade volume fan How to use eyelash extension glue Please note this product is for professional use only. Eyelash extension glues are NOT for self-application, NOT for cluster, strip lashes. This product may not be suitable for people with very sensitive eyes or for those who have developed an allergy to cyanoacrylate.