TDLR Lash Extension Written Final Exam
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of eyelash extensions?
A. To permanently curl natural lashes
B. To enhance the length, fullness, and appearance of natural eyelashes
C. To replace mascara permanently
D. To stimulate eyelash growth
Correct Answer: B. To enhance the length, fullness, and appearance of
natural eyelashes
Rationale: Eyelash extensions are semi-permanent fibers attached to
natural lashes to improve their aesthetic appearance, not to alter
growth or permanently change lash structure.
,2. Which layer of the skin do eyelash extensions attach to?
A. Dermis
B. Epidermis
C. Natural eyelashes (hair shaft)
D. Subcutaneous tissue
Correct Answer: C. Natural eyelashes (hair shaft)
Rationale: Extensions are applied directly to the natural lash hair, not
the skin, to avoid irritation and ensure proper adhesion.
3. What is the main ingredient in most lash adhesives?
A. Formaldehyde
B. Cyanoacrylate
C. Acetone
D. Lanolin
Correct Answer: B. Cyanoacrylate
Rationale: Cyanoacrylate is the primary bonding agent in lash adhesives
due to its fast-drying and strong adhesive properties.
4. Why is a patch test recommended before lash extension
application?
,A. To test lash length preference
B. To determine curl type
C. To check for allergic reaction to adhesive
D. To clean the lashes
Correct Answer: C. To check for allergic reaction to adhesive
Rationale: A patch test helps identify possible allergic reactions to glue
or products used during the service.
5. Which lash cycle phase is the most common during shedding?
A. Anagen
B. Catagen
C. Telogen
D. Exogen
Correct Answer: D. Exogen
Rationale: The exogen phase is when lashes naturally shed as part of
the growth cycle.
6. What is the purpose of isolating a natural lash during application?
A. To speed up application
B. To prevent multiple lashes from sticking together
, C. To increase adhesive use
D. To curl lashes
Correct Answer: B. To prevent multiple lashes from sticking together
Rationale: Isolation ensures each extension is applied to one natural
lash to prevent damage and discomfort.
7. Which type of lash extension is the lightest and most natural-
looking?
A. Mink
B. Silk
C. Synthetic
D. Flat lash
Correct Answer: A. Mink
Rationale: Mink lashes are known for being lightweight and soft, giving
a natural appearance.
8. What is the recommended distance from the eyelid when applying
extensions?
A. On the eyelid
B. 0.5–1 mm from the lash line
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of eyelash extensions?
A. To permanently curl natural lashes
B. To enhance the length, fullness, and appearance of natural eyelashes
C. To replace mascara permanently
D. To stimulate eyelash growth
Correct Answer: B. To enhance the length, fullness, and appearance of
natural eyelashes
Rationale: Eyelash extensions are semi-permanent fibers attached to
natural lashes to improve their aesthetic appearance, not to alter
growth or permanently change lash structure.
,2. Which layer of the skin do eyelash extensions attach to?
A. Dermis
B. Epidermis
C. Natural eyelashes (hair shaft)
D. Subcutaneous tissue
Correct Answer: C. Natural eyelashes (hair shaft)
Rationale: Extensions are applied directly to the natural lash hair, not
the skin, to avoid irritation and ensure proper adhesion.
3. What is the main ingredient in most lash adhesives?
A. Formaldehyde
B. Cyanoacrylate
C. Acetone
D. Lanolin
Correct Answer: B. Cyanoacrylate
Rationale: Cyanoacrylate is the primary bonding agent in lash adhesives
due to its fast-drying and strong adhesive properties.
4. Why is a patch test recommended before lash extension
application?
,A. To test lash length preference
B. To determine curl type
C. To check for allergic reaction to adhesive
D. To clean the lashes
Correct Answer: C. To check for allergic reaction to adhesive
Rationale: A patch test helps identify possible allergic reactions to glue
or products used during the service.
5. Which lash cycle phase is the most common during shedding?
A. Anagen
B. Catagen
C. Telogen
D. Exogen
Correct Answer: D. Exogen
Rationale: The exogen phase is when lashes naturally shed as part of
the growth cycle.
6. What is the purpose of isolating a natural lash during application?
A. To speed up application
B. To prevent multiple lashes from sticking together
, C. To increase adhesive use
D. To curl lashes
Correct Answer: B. To prevent multiple lashes from sticking together
Rationale: Isolation ensures each extension is applied to one natural
lash to prevent damage and discomfort.
7. Which type of lash extension is the lightest and most natural-
looking?
A. Mink
B. Silk
C. Synthetic
D. Flat lash
Correct Answer: A. Mink
Rationale: Mink lashes are known for being lightweight and soft, giving
a natural appearance.
8. What is the recommended distance from the eyelid when applying
extensions?
A. On the eyelid
B. 0.5–1 mm from the lash line
