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Frequently Asked Questions


A. How to put in contact lenses?

Step 1:  please do not put on them immediately when you receive your lens. The liquid in the package is saline and disinfectant, and it may irritate your eyes. Please put the lenses in the contact lens care solution about 12hours before you wear them.

Step 2: Take the lens out from the package gently after washing and drying your hands. Then make sure you are holding the correct side of the lens.

Step 3: Hold up your upper eyelid and pull down your lower lid, then use the index finger to gently place the lens.

Step 4: Look up and down, left and right after putting the lens in so that it will settle into place, then close your eye in a while.

Step 5: Do again for the other eye through simple steps!

B. How to remove contact lenses?

Step 1: Wash and dry your hands thoroughly before touching your eyes.

Step 2: Use your clean hand to gently pull down your lower eyelid, then pull up your upper eyelid.

Step 3: Using your index finger and thumb to pinch the lens gently.
Step 4: Look up and slide the lens down gently so that the lens will be kept in your eye, then pinch it off onto a finger. Do it again for the other eye.

C. Do your lenses come with a prescription?

Yes! Some of them are available with a prescription from -1.00 to -8.00, you can check the item content with detail information. If you have normal eyesight or you simply need a decoration, choose -0.00/plano. And we are sorry that we do not offer the   + power.
Consult your eye doctor to confirm the
dioptre/power/degree before ordering.

Can i order  different power/degree for 2 eyes?

the price in the website showed for 1 pairs ( 2pieces contact lenses) 

if you want order 2 different power/degree for 1 pair, just choose 1 degree you want

and then you can write the power you want in the remarks when you make the order.

such as: beauty eye black (-1,25,-2.75) 1 pair  

if you forget put the remarks, please send us the email ( with your order no. and name, our customer service will confirm back to you.

D. Why is the actual color different from that on the website?

Due to variable factors, such as light, camera lens filters, surrounding colors, original eye color/ eye shape/ makeup, etc, the color of the lenses may vary and look different,these such cases should be happened and acceptable.

Kindly Remind:

Please contact us within 24 hours after you received your lenses if you have any doubt about the order. Please don’t forget to enclose the lens picture so that we can check for you more easy and fast.

E. What to do when lenses irritate eyes?

Please soak your lenses in care solution which is exclusive for contact lenses for 24hours, and then rinse and scrub your lenses gently.

Check the two sides is fine before wearing lenses to avoid uncomfortable experience, such as irritation, dry eyesblurry vision, etc

F. Safety information about wearing contact lenses.

1) Always wash your hands before wearing, removing or handling your contact lenses.

2) Do not lend, borrow or share used contact lenses with other people, otherwise, it may lead to infection or even blindness to eyes.

3) Please take off your lenses before sleeping.

4)Insert lenses before putting make-up on around eyes, and take off lenses before taking make-up off.

5) Please do not attend any water sports when wearing lenses.

6) New contact wearer wears less than 4 hours a day. When your eyes adapt the lenses, you can wear them longer, but do not exceed 8 hours a day.

G. How to take care for contact lenses.

1) Clean and disinfect the lens with moderate care solution (Place the contact in the palm of your hand. Wet your lenses with a few drops of care solution and carefully rub the lenses).

2) Use fresh care solution each time and discard solution from lens case after each use.

3) Remember to change the solution regularly if you do not wear the lens often.

4) Rinse and scrub your lens every 2-3 days to prevent protein precipitation effectively.

5) Keep the lens away from sharp objects because the lenses are very thin and vulnerable.



A. Can I cancel or modify my order?

Yes, you can change the information or cancel the order before the order is shipped.

B. When can I get the parcel after payment?

Total Delivery Time = Processing Time + Shipping Time
1) Processing Time: normally we need 1-3 business days to prepare your order after receive the payment, do strict quality-control tests and carefully package the items. So the processing time is separate from the shipping time.

*If your order was out stock, the processing time will be extended 2-3 business days for urgent replacement.
2) Shipping time:

we send the parcel to more than 200countries by china post or hongkong post, which cover most of the country in the world.

the shipment to USA, EUROPEAN COUNTY is about 2-3 weeks, such as: USA, GERMANY, FRANCE...

the shipment to SOUTH AMERICAN COUNTRY is about 4-6 weeks, such as : brazil, mexico,argintina...

the shipment to AFRICA, ARABIC COUNTRY is about 4-5 weeks, such as: south africa, saudi arabic, UAE...

3) Shipping cost:

The website shop charge 6.32usd for each order.


4) About parcel shipment/ track number 

Each parcel we sent by register china post, which you can check the trace in the website.

The shipment number for each order will email to your register email in our webstie and you can also find in your account of coslens as below: 

Account  > Order History > Tracking   

use your tracking no. check the trace on the website


A.Can I exchange or return my order?

It is a pity that we do not provide exchange service for anyone because safety and hygiene reason. If your order has any faulty or issue, contact us within 24 hours once you get the parcel, Our customer service team will solve your problems as soon as possible.


B.faulty Goods

If the goods have any faulty and issue with your order when you get the parcel, contact us within 24 hours!

Please enclose the picture and tell us the details of the issue, we will check and solve it for you as soon as possible.

Free shipping on orders over $24.99