TDLR LASH EXTENSION WRITTEN
COMPREHENSIVE STUDY GUIDE 2026
FULL QUESTIONS AND SOLUTIONS
GRADED A+
◍ Every two years.
Answer: When you need to renew your license
◍ Acetone.
Answer: Used to remove glue from tweezers
◍ Straight Tweezers.
Answer: Used to place the lash extension onto the natural lash and separate
the other lashes from the isolated one
◍ How long is the lash growth cycle?.
Answer: 30-60 days
◍ Fungus.
Answer: Single cell organisms that grow in irregular masses, includes mold
◍ What is an acceptable way to clean implements?.
Answer: With soap and water
◍ How many natural lashes do people typically have?.
Answer: 150-200
◍ Remove grown out or twisted lashes.
Answer: What you do during a fill appointment
◍ Lash Follicle.
Answer: Determines the direction the lash grows in
, ◍ Discard/Throw away.
Answer: What you do with unused extensions that you've removed from the
package
◍ $50.
Answer: The cost to renew your license
◍ Ultraviolet Machine.
Answer: Used as a dry storage container
◍ How long after your license expires can you perform services?.
Answer: Under no circumstances should you perform services with an
expired license
◍ How to perform a patch test?.
Answer: Place a small amount of glue on outermost lashes or behind ear
◍ Oval/Almond Eye Shape.
Answer: Can wear any style of lash extensions, high volume lashes
◍ How do you turn an inactive license active?.
Answer: Fill out form and pay $25
◍ When does a salon have to apply for a new license.
Answer: When there is a change of ownership, they have 30 days to do so
◍ Sterilization.
Answer: The cleaning/disinfecting method kills/destroys all
microorganisms.
◍ Salon Owner.
Answer: Fill out application and pay $25
◍ Bending.
Answer: What happens when you place too long lash extensions on the
natural lash
◍ Styptic Powder/Powdered Alum.
Answer: Used to stop minor bleeding
COMPREHENSIVE STUDY GUIDE 2026
FULL QUESTIONS AND SOLUTIONS
GRADED A+
◍ Every two years.
Answer: When you need to renew your license
◍ Acetone.
Answer: Used to remove glue from tweezers
◍ Straight Tweezers.
Answer: Used to place the lash extension onto the natural lash and separate
the other lashes from the isolated one
◍ How long is the lash growth cycle?.
Answer: 30-60 days
◍ Fungus.
Answer: Single cell organisms that grow in irregular masses, includes mold
◍ What is an acceptable way to clean implements?.
Answer: With soap and water
◍ How many natural lashes do people typically have?.
Answer: 150-200
◍ Remove grown out or twisted lashes.
Answer: What you do during a fill appointment
◍ Lash Follicle.
Answer: Determines the direction the lash grows in
, ◍ Discard/Throw away.
Answer: What you do with unused extensions that you've removed from the
package
◍ $50.
Answer: The cost to renew your license
◍ Ultraviolet Machine.
Answer: Used as a dry storage container
◍ How long after your license expires can you perform services?.
Answer: Under no circumstances should you perform services with an
expired license
◍ How to perform a patch test?.
Answer: Place a small amount of glue on outermost lashes or behind ear
◍ Oval/Almond Eye Shape.
Answer: Can wear any style of lash extensions, high volume lashes
◍ How do you turn an inactive license active?.
Answer: Fill out form and pay $25
◍ When does a salon have to apply for a new license.
Answer: When there is a change of ownership, they have 30 days to do so
◍ Sterilization.
Answer: The cleaning/disinfecting method kills/destroys all
microorganisms.
◍ Salon Owner.
Answer: Fill out application and pay $25
◍ Bending.
Answer: What happens when you place too long lash extensions on the
natural lash
◍ Styptic Powder/Powdered Alum.
Answer: Used to stop minor bleeding
