Who is behind it
About Us
We are three sisters: Martina, Lisa and Sabine from Freiburg im Breisgau. Together we run the family business COSLINE Cosmetics GmbH in the second generation.
mission
This is what we stand for
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 have 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 put on make-up for the day (and evening) yourself at home without much effort. It's very easy, you can do it too!
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.
We want to show you in the big cosmetics jungle that less cosmetics is often more and that everyone can apply make-up quickly and easily with simple tricks.
customer service, administration, human resources
Martina Sauer
Tina is responsible for customer service at COSLINE. It matters a great deal to her to be able to offer you dependable customer service. She also coordinates order processing, so that your delivery reaches you as quickly as possible. On top of that she looks after all administration and HR.
Living with atopic dermatitis herself, she knows how hard it is to find good and, above all, well-tolerated cosmetics. So she is ideally placed to advise women with skin problems and to speak from her own experience.
Powerhouse Tina loves taking long walks in the woods with her Labrador. Her two sons also keep her very much on her toes.
Tina's favourite product: Lipliner Nature 206
online marketing, sales, make-up artist
SABINE HORNER
Sabine is the creative mind behind COSLINE. She is responsible not only for the products and product development but also for marketing. This mainly includes presence on social media such as Facebook, Instagram, and YouTube. Sabine loves applying makeup and was seen for many years as a Foundation artist at trade fairs, events, and makeup workshops (before Corona).
With Sabine’s positive energy and enthusiasm, she quickly inspires those around her. Sabine has two children, stays fit in the evenings with Pilates and Jazz Dance, and follows a vegetarian diet. After a long day, she loves to eat chocolate the most.
Sabine’s favorite product: Eyeliner Lila 110
web optimization, controlling
LISA HANSEN
Lisa keeps the COSLINE website up to date and makes sure you can quickly find your way around our online shop and place your order with ease. She also takes care of controlling. Numbers, reports, and statistics are right up her street.
Lisa also likes to stay active in her free time. She plays volleyball, goes jogging, and spends lots of time with her three young children. The family takes center stage at weekends, whether they’re playing soccer, doing crafts, or going on outings together. When she’s in the mood for something more relaxing, Lisa loves unwinding in the sauna.
Lisa’s favorite product: Concealer Liquid 919
customer service, accounting
NATHALIE SIEGL
At COSLINE, Nathalie is responsible for customer service and administration. If you call our office or send us a message, Nathalie is usually the one who answers all your questions.
In addition, she is responsible for handling returns and complaints, as well as dunning and various accounting tasks.
In her free time, Nathalie enjoys keeping up with the latest Foundation and beauty trends, as well as fashion. She also loves traveling. Her favorite thing is taking road trips through foreign countries far from mass tourism.
Nathalie's favorite product: Cleansing foam
customer service
Anna-Lena Herr
Anna-Lena is part of our COSLINE customer service team. If you call or email us, Anna-Lena will take care of your request. She also supports her colleagues with returns and complaints, as well as community management.
Anna-Lena loves to travel. Whether it’s a beach vacation or a city break, her favorite destination is Croatia. In her free time, she likes to relax by cooking, having coffee with friends, or working up a sweat with hula hooping.
Anna-Lena’s favorite product: Eyeshadow Champagner 305
customer service
Caroline Feser
Caroline is responsible for customer service at COSLINE. Whether by email, phone, or chat - Caroline answers your questions and ensures everything runs smoothly. She also supports her colleagues with customer management and processing returns.
In her free time, she loves spending time with her family. She especially enjoys going for walks in the fresh air or discovering new places nearby.
Caroline's favorite product: CosCare Cream
customer service
Sabine Maier
At COSLINE, Sabine supports the customer service team, handling customer inquiries by phone, email, and chat. She is also involved in customer administration and helps organize and process returns.
In her free time, Sabine loves to travel and discover new cultures and exciting places. She stays active with CrossFit. She also loves cooking and enjoys spending time with family and friends. She finds learning new things just as rewarding as having a variety of experiences.
Sabine's favorite product: Firming Makeup
Customer service
Juliette Bdier
Juliette is the newest addition to our COSLINE customer service team. Whether by email, phone, or chat, she answers your questions and makes sure your request is resolved quickly and easily. She also supports her colleagues with customer account management and processing returns.
In her free time, Juliette enjoys staying active and spends a lot of time at the gym. Her family and friends are especially important to her, and she loves spending time with them. She loves being active, trying new things, and enjoying a variety of experiences.
Juliette's favorite product: Rose Blush 702
online marketing
Leonie Luz
Leonie is part of COSLINE's online marketing team and makes sure our ideas are seen. She creates much of the content you come across at COSLINE: from social media posts and newsletters to content for our website.
Many of our makeup videos are also made with Leonie's help: she works behind the camera, filming, editing, and preparing the content so our makeup tips are clear, engaging, and easy to follow. She also creates photos and graphics and works with the team to continually develop our online presence.
Leonie also enjoys being creative in her free time: she likes photography and sewing. And when she's not working on new ideas, she loves exploring the Black Forest.
Leonie's favorite product: Eyeliner Stardust 124
online marketing
Luisa Bösch
Luisa is part of the online marketing team at COSLINE. Her responsibilities include creating content for our social media channels and shooting and editing our videos. She is also responsible for coming up with ideas for new campaigns and visualising them.
Luisa loves to travel and explore new places. After work, she likes to work out at the gym. She is also very interested in personal development and enjoys attending seminars and reading books on the topic of mindset.
Luisa's favorite product: Shiny Highlighter 601
online marketing
Melina Schülli
Melina is part of the online marketing team at COSLINE. Her responsibilities include planning and executing campaigns, creating content for our social media channels, as well as filming and editing videos. She also takes care of photo editing and creating graphics.
In her free time, Melina finds the perfect balance by playing the piano. She is also regularly found at the gym, as exercise is part of her daily routine to clear her mind.
Melina's favorite product: Mascara Black Wonderlash 93
online marketing
Victoria Gosteva
Victoria is part of the online marketing team at COSLINE. She is responsible for creating content for our social media channels, filming and editing our videos, and helping develop and visually implement new campaign ideas. She’s also in charge of image editing and graphic design.
In her free time, Victoria loves traveling to new destinations and embracing unexpected adventures. A good thriller is always a must. When she’s not giving it her all at the gym with strength training, she enjoys relaxing moments with friends.
Victoria's favorite product: Eyeshadow Muskat 304
Procurement
Nancy Steinberg
At Cosline, Nancy is responsible for purchasing, introducing new products, negotiating with suppliers, and building and optimizing processes. She makes sure your favorite products are always in stock and that we regularly offer exciting new additions to our range.
In her free time, Nancy enjoys spending time with her husband and their three children. Whether hiking or cycling in the Black Forest – she loves nature and outdoor activities. She’s also passionate about traveling and discovering new places, whether it’s a city trip, a beach vacation, or a mountain adventure.
Nancy’s favorite product: Magic Lipstick
Process management
Vili Mr.
Vili has been strengthening the COSLINE team since August 2026 as Operations Manager for E-Commerce & Systems. Together with various teams, she works to make processes more efficient and continually improve the shopping experience for our customers.
Vili is particularly interested in the combination of structure, technology, and practical solutions. She enjoys simplifying processes and creating tangible improvements with new ideas.
In her free time, she's currently creating her first garden, and enjoys cooking and dancing. Life is never dull with her Maltese dog, either, as she loves teaching her new tricks.
Vili's favorite product: Mascara Black Rubber Brush 91
Assistance
Nadja Kahle
As an executive assistant, Nadja handles a wide range of topics at COSLINE. From planning and organizing team events to optimizing processes and supporting the HR team, there’s never a dull moment. This is exactly what she loves about her job: Every day brings new tasks, new topics, and new challenges.
In her personal life, Nadja’s two children keep her busy, and she loves spending time outdoors in nature with them. She also loves good food and is passionate about trying new things. It feels like she starts a new hobby every month – from pottery to dancing and yoga, and anything else that piques her curiosity.
Nadja’s favorite product: Foundation Stick
Our company history
1997 Sigrid Ganter (Sigi) founds COSLINE Cosmetics. Across Baden-Württemberg and Switzerland she personally advises women of every age at consumer fairs and establishes her own colour cosmetics line.
2004 Her daughters Martina and Sabine found the cosmetics distributor COSLINE Direct GbR, to build on the successful sales operation in Germany and Austria. Freelance colleagues work at fairs nationwide to win over even
more people to COSLINE products.
2016 The youngest sister, Lisa, joins the family business and takes on website optimisation and controlling.
2017 The family business is converted into COSLINE Cosmetics GmbH.
2019 The COSLINE sisters' YouTube channel launches, with plenty of simple make-up tips.
2020 Covid means the end of fairs and make-up workshops. COSLINE's social media channels are therefore expanded significantly. Facebook, Instagram, Pinterest, YouTube and TikTok now carry valuable make-up tips on a regular basis.
2022 More colleagues are taken on to support the team.
2023 Our premises are too small, so we move to a new, larger, nicer office in Merzhausen. The shortage of raw materials gives us a great deal of trouble this year. Many products are sold out for months. In time for Black Friday and Christmas, though, most products are available again.
The still family-run company now consists of the three sisters and ten employees, who play a decisive part in shaping its success.
COSLINE stands for simple and effective make-up. Whether it's daytime make-up or something to match evening wear, the goal has always been to create maximum beauty with well-tolerated, easy-to-use products. That all COSLINE products are very well tolerated goes without saying.
COSLINE products are sourced and manufactured in Germany and Europe. Watch our video on cosmetics production now and find out how our Eyeliner pencils are made:
