
COSLINE Experiences & Criticism
This is what customers say about us and our products!
Are the kohl/eyeliner really smudge-proof and waterproof?
Yes, the kohl/eyeliner is smudge-proof and waterproof after 5 minutes. Until then, you still have time (if you want) to correct or blend the color. It is important that you do not apply a lot of cream to your skin shortly before applying makeup, as this makes it difficult for the colors to stay. And it is best not to apply the line directly to the waterline (because it is very moist there) but to the base of the hairs.
Are the products really free from animal testing?
Yes! Since 1998, animal testing on cosmetic products has been prohibited in Germany. In the EU, animal testing for cosmetics has been banned since 2004. In addition, since March 2013, there has been a ban on the introduction of cosmetics and their ingredients tested on animals in the EU.
COSLINE products are manufactured in accordance with the above-mentioned laws and regulations with "Made in Germany" quality. Consequently, our finished cosmetic products are not tested on animals and we do not commission any animal testing for individual raw materials.
Are COSLINE products of poor quality?
You can return the products within 30 days of receiving the items. Click here to return . (Please note: returns from Switzerland are currently not possible for customs reasons).
Once we have received your return, we will refund the value of the goods or offset the return against the outstanding invoice amount.
How does the exchange work at COSLINE?
Your satisfaction is very important to us. You are not happy with our products? Then give us another chance. If for any reason you are not satisfied with our products, we make it very easy to exchange them within 30 days. Click here to return . You can exchange your COSLINE product and rely on a fast service that makes things as convenient as possible for you.
How good is the customer service at COSLINE?
At COSLINE, we place great importance on outstanding customer service. Whether you have questions about the products, want to cancel your order or have questions about delivery times, we are here to help you. You can reach us by phone, email, WhatsApp or via our chat. In our email and WhatsApp newsletter, we also keep you up to date with offers and specials. If you want to unsubscribe from our newsletter, you can do so with just a few clicks.
Is COSLINE really good?
Fortunately, we no longer have to answer this question ourselves. Hundreds of thousands of satisfied customers confirm it: At COSLINE, we do everything we can to offer you the best quality. We produce our products so carefully that you can benefit from the quality and selection.
What is special about COSLINE?
It is important to us that everyone can easily put on make-up without being a make-up professional. At the trade fairs and make-up workshops where we advised and applied make-up to ordinary women, we often heard that many would like to put on make-up but don't know exactly how. We therefore want to show you how easy it is to do your own make-up for the day (and evening) at home without much effort. Our cosmetic products are of the highest quality, Made in Germany. So you can be 100% sure that you only get the best from us. We only include products in our range that we are convinced of ourselves.
Is COSLINE a good brand?
We are three sisters: Martina, Lisa and Sabine from Freiburg im Breisgau. We run the family business COSLINE Cosmetics GmbH together in the second generation. And there is a reason for that: The COSLINE brand stands for high quality (Made in Germany) and excellent customer service. Our goal: to offer you the best service and the best products.
General feedback and criticism
At COSLINE, we really value your feedback and criticism. Because it is your suggestions that make us better as a company. If you are looking for alternatives or have criticism of us, please contact us. We want to know what your concerns are so that we and our service can improve.


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