COSNORI’s 2-in-1 tinting eyelash serum which is the best-selling eyelash serum product. Black tinting eyelash serum made by the best brand. Black nourishment on eyelashes as if they are applied with a mascara. Creating firm and healthy texture even for droopy and short eyelashes. Apply the serum first and then use mascara curler for volumized lashes as if the lashes are applied with mascara. After fixing, the serum does not smudge or flaking. It nourishes eyelashes that are damaged from lash perm and results in vivid eye makeup. Recommended for those who want to nourish eyelashes and give mascara effect at the same time, want to improve eyelash conditions after frequent perms, want to improve droopy and thin eyelashes, and want to use a daily eyelash serum after perm.
Last Updated: May 29, 2026
OLIVE YOUNG guarantees the highest quality of all our products. We do not sell damaged or used items. If you have received a damaged product, please contact our Customer Service Center as soon as possible.
You can click on the following links to go directly to the corresponding sections.
Cancellation Policy
Cancellation Process
How Shipping Fees are Refunded
| Type | Responsibility | Refund Policy |
|---|---|---|
| Full Cancellation | OLIVE YOUNG / Customer |
|
| Partial Cancellation | OLIVE YOUNG |
|
| Customer |
|
Return Policy
Return Process
Return Eligibility by Case
| Status | Responsibility | Reason for return |
|---|---|---|
| Eligible | OLIVE YOUNG |
|
| Customer |
| |
| Ineligible | - |
|
How Shipping Fees are Refunded
| Type | Responsibility | Refund Policy |
|---|---|---|
| Full Return | OLIVE YOUNG |
|
| Customer |
| |
| Partial Return | OLIVE YOUNG |
|
| Customer |
However, if the claim is due to our company's fault, the original shipping fee will be refunded to customers who paid it. |
Exchange Policy
Please contact OLIVE YOUNG for any further inquiries.








COSNORI’s 2-in-1 tinting eyelash serum which is the best-selling eyelash serum product. Black tinting eyelash serum made by the best brand. Black nourishment on eyelashes as if they are applied with a mascara. Creating firm and healthy texture even for droopy and short eyelashes. Apply the serum first and then use mascara curler for volumized lashes as if the lashes are applied with mascara. After fixing, the serum does not smudge or flaking. It nourishes eyelashes that are damaged from lash perm and results in vivid eye makeup. Recommended for those who want to nourish eyelashes and give mascara effect at the same time, want to improve eyelash conditions after frequent perms, want to improve droopy and thin eyelashes, and want to use a daily eyelash serum after perm.
Last Updated: May 29, 2026
OLIVE YOUNG guarantees the highest quality of all our products. We do not sell damaged or used items. If you have received a damaged product, please contact our Customer Service Center as soon as possible.
You can click on the following links to go directly to the corresponding sections.
Cancellation Policy
Cancellation Process
How Shipping Fees are Refunded
| Type | Responsibility | Refund Policy |
|---|---|---|
| Full Cancellation | OLIVE YOUNG / Customer |
|
| Partial Cancellation | OLIVE YOUNG |
|
| Customer |
|
Return Policy
Return Process
Return Eligibility by Case
| Status | Responsibility | Reason for return |
|---|---|---|
| Eligible | OLIVE YOUNG |
|
| Customer |
| |
| Ineligible | - |
|
How Shipping Fees are Refunded
| Type | Responsibility | Refund Policy |
|---|---|---|
| Full Return | OLIVE YOUNG |
|
| Customer |
| |
| Partial Return | OLIVE YOUNG |
|
| Customer |
However, if the claim is due to our company's fault, the original shipping fee will be refunded to customers who paid it. |
Exchange Policy
Please contact OLIVE YOUNG for any further inquiries.







