Page 1 of 156
TDLR LASH EXTENSION EXAM
2026|300Qs&As|ALREADY GRADED A+
1. Eyelash extensions are applied to the client's natural lashes for
which primary purpose?
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
Answer: B – The primary goal of eyelash extensions is to
enhance the length, fullness, and appearance of natural
eyelashes; they are semi-permanent and do not alter lash
growth.
Rationale: Eyelash extensions are semi-permanent fibers attached
,Page 2 of 156
to natural lashes to improve aesthetic appearance, not to alter
growth or permanently change lash structure.
2. What is the natural growth cycle length of an eyelash?
A. 1 week
B. 15 days
C. 4 to 8 weeks
D. 10 to 12 weeks
Answer: C – Eyelashes typically follow a growth cycle lasting 4
to 8 weeks, which influences lash retention. Different phases
(anagen, catagen, telogen) occur within this cycle.
Rationale: The active growth phase (anagen) lasts 30–45 days,
the transitional phase (catagen) lasts 2–3 weeks, and the
resting/shedding phase (telogen) can last over 100 days. The
complete cycle from anagen start to telogen shedding averages
4–8 weeks.
,Page 3 of 156
3. You are performing a lash application and need to select the
appropriate extension weight for a client with very fine, thin
natural lashes. Which of the following extension diameters is the
safest choice?
A. 0.10 mm
B. 0.20 mm
C. 0.25 mm
D. 0.30 mm
Answer: A (0.10 mm) – A lighter extension respects the natural
lash's limited weight-bearing capacity, reducing the risk of
premature shedding and damage.
Rationale: Thin, fragile natural lashes require a light extension
(0.10–0.15 mm) to avoid stress and breakage. Thicker diameters
(0.20–0.30 mm) should only be used on healthy, strong natural
lashes.
, Page 4 of 156
4. Which lash extension type is generally considered the lightest,
softest, and most natural-looking?
A. Synthetic
B. Silk
C. Mink (or high-quality faux mink)
D. Flat lashes
Answer: C (Mink or high-quality faux mink) – Mink (or
premium faux-mink) fibers are lightweight, taper naturally, and
provide the softest, most natural appearance.
Rationale: Mink lashes are known for being lightweight and soft,
giving a natural appearance. Silk is slightly heavier, and
synthetic lashes are stiff and glossy.
5. What is the maximum recommended extension length for a
client with short natural lashes?
TDLR LASH EXTENSION EXAM
2026|300Qs&As|ALREADY GRADED A+
1. Eyelash extensions are applied to the client's natural lashes for
which primary purpose?
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
Answer: B – The primary goal of eyelash extensions is to
enhance the length, fullness, and appearance of natural
eyelashes; they are semi-permanent and do not alter lash
growth.
Rationale: Eyelash extensions are semi-permanent fibers attached
,Page 2 of 156
to natural lashes to improve aesthetic appearance, not to alter
growth or permanently change lash structure.
2. What is the natural growth cycle length of an eyelash?
A. 1 week
B. 15 days
C. 4 to 8 weeks
D. 10 to 12 weeks
Answer: C – Eyelashes typically follow a growth cycle lasting 4
to 8 weeks, which influences lash retention. Different phases
(anagen, catagen, telogen) occur within this cycle.
Rationale: The active growth phase (anagen) lasts 30–45 days,
the transitional phase (catagen) lasts 2–3 weeks, and the
resting/shedding phase (telogen) can last over 100 days. The
complete cycle from anagen start to telogen shedding averages
4–8 weeks.
,Page 3 of 156
3. You are performing a lash application and need to select the
appropriate extension weight for a client with very fine, thin
natural lashes. Which of the following extension diameters is the
safest choice?
A. 0.10 mm
B. 0.20 mm
C. 0.25 mm
D. 0.30 mm
Answer: A (0.10 mm) – A lighter extension respects the natural
lash's limited weight-bearing capacity, reducing the risk of
premature shedding and damage.
Rationale: Thin, fragile natural lashes require a light extension
(0.10–0.15 mm) to avoid stress and breakage. Thicker diameters
(0.20–0.30 mm) should only be used on healthy, strong natural
lashes.
, Page 4 of 156
4. Which lash extension type is generally considered the lightest,
softest, and most natural-looking?
A. Synthetic
B. Silk
C. Mink (or high-quality faux mink)
D. Flat lashes
Answer: C (Mink or high-quality faux mink) – Mink (or
premium faux-mink) fibers are lightweight, taper naturally, and
provide the softest, most natural appearance.
Rationale: Mink lashes are known for being lightweight and soft,
giving a natural appearance. Silk is slightly heavier, and
synthetic lashes are stiff and glossy.
5. What is the maximum recommended extension length for a
client with short natural lashes?
