Eyelash Extension Training2021-03-11T18:19:46-05:00

I had the privilege to attend KBI for my lash training course. My instructor, Colleen Kosti, was amazing. Very knowledgeable and patient. I highly recommend this school if you are looking to become a certified lash artist.

Viv, Tilbury

Colleen was a FANTASTIC teacher! I took the eyelash extension course. Great tools, support and knowledge were given. I highly recommend!

Corynn, Chatham

I had a wonderful first experience, Colleen is absolutely wonderful as a teacher. Classes are small and training is hands on and supervised. I came from a different province she was resourceful and accommodating. I fell ill just before I started, shale rearranged the class schedule to fit me in. I will be taking other programs and highly recommend this institute. If you are torn come to Kosti Beauty.

Arwa, East Coast Canada

I did an eyelash course with Colleen and I am so Happy I found her. She is very thorough with her work and very knowledgeable. She wants all her students to grow and succeed.

Roxana, Windsor

I learned so much and I’m so happy I met the owner. I had a great experience and I want to thank her so much!

Heba, Windsor

I’ve taken Eyelash class, and Makeup with Airbrushing This is defintely one of the best school and best teacher. I would recommend anybody wants to take this class it’s a good school . 👍

Jounefief, Chesterfield, Michigan

KBI all products are amazing!!! everything you need u will find in your kit ! mrs colleen is a wonderful and good teacher ever 💓💓

Sarah, Windsor ~ Lebanon

Colleen was so nice and easy to work with, gave great critiques. Incredibly patient and forgiving ! Thank you so much Colleen

Lara, Windsor

I took the classic lash extension class and enjoyed the course. I loved how intimate the class was giving a nice atmosphere for proper technique learning. Colleen is very knowledgeable and extremely helpful even once class was over she responds to any further questions to help you develop your still. Highly recommended

Just completed classic eyelash extension class at Kosti Beauty Institute. I am so thrilled with Colleen , and the class.

Very informative, great hands on practice and small class size.

The starter kit is amazing!!! Everything you need to start up.!!! Very highly recommend!!!

Michelle, Nurse

I took the eyelash extension training and it was a great experience!

The teaching is amazing and provides me with great support – whenever I have a question – I can message KBI and she answers right away.

So helpful and we had great fun and made friends with other women starting their own Eyelash business!

It was an amazing and fun learning experience Colleen Kosti is a great teacher, our kit was all we needed to get started helpful kit that I would recommend and definitely I will recommend Kosti Beauty Institute school for who ever wants to learn about the beauty industry

Hanon, Hanon Beauty

I recommend kosti Beauty Institute to all students who want to work in the beauty industry.Collen kosti takes the time to teach you everything step by step. and her products are amazing.and it’s all what you need she just overall an amazing teacher.☺️

Julie, Windsor

This institute is great if you are willing to learn makeup, nails, esthetics , and lash extension. Colleen is really amazing teacher and she provided me amazing kits to use during course. She is the one of the best. She has really great organic product line which I really recommend. She taught me really great stuff. Highly recommended. Happy student.

Just completed the Kosti Eyelash training with Colleen, she was wonderful, knowledgeable, confident. The easy going atmosphere made learning fun. Colleen gives an amazing kit with all the bells and whistles.  Anything extra she doesn’t provide in the kit is on hand right in her studio and at a great price. I come buy all the time = day or night!  So glad I came to came to KBI.

Jill, Harrow

The best place ever to learn really well and start out and the supply kits has everything you need and more. Well worth the money.

Saifan, Windsor

Kosti Beauty has the full hands on training you will need to exceed in this department of beauty. Colleen has very articulate and clear demonstrations and instructions on helping her students excel in this. She has patience on helping make her students do the best job we can. Hands down the best instructor I’ve had. If I were to take any other beauty courses here is the place I’d want to come.

McKenzie, U of W Student

Colleen was great teacher and very friendly..learned a lot from her.

Taj, Taj Beauty St Clair Beach

This is the best institute in town to get any training done in the beauty field . Colleen is an absolute amazing trainer and friend you can have. I love the warm environment and small courses they offer . I’m getting trained to get 4 different Certifications with Kosti Beauty Institute and I couldn’t be any happier with my decision. Keep up the amazing work and all they offer for this small town of Windsor . Thank you Colleen for all you do .

Diana, Windsor

Extremely knowledgeable about all the different types of lashes! Super organized. Can reach her at all times through text message email etc! Would definitely recommend her to anyone and I will be taking more courses from her too!!! I feel very confident to run my own business now!

Fia, Walkerville

Kosti Beauty Institute Eyelash Extension Training

Our Expertise & History

~ Courses that Center around Your Best Learning Styles ~ Training Excellence ~

~ Latest Beauty Trends & Brands  ~ Certificates Awarded  ~ Customized Small Classes ~

~ Award Winning  Educator ~ Former Instructor St. Clair College

~ Celebrating 4 Decades Experience  | Salon Owner | Charity Founder – Supporting Local Women & Vulnerable Girls ~

“I enrolled in the online nail technician course. I highly recommend this course. The instructor Colleen Kosti is professional, clear in providing instruction, and takes the time to ensure you understand the material you are learning while taking this course. I’m very happy that I chose this institution versus other options.”

Celeste Marie , Toronto

“I completed the makeup artistry course here and could not be happier with the education provided. Colleen is very knowledgeable, patient and created a great work environment.  5 stars “

Sabah Zaidan, Windsor

“I would like to take this time to thank Colleen Kosti for providing me with this wonderful opportunity to attend and complete the online lash course, lash lift and tint course and currently the facials program at KBI. She is the most amazing instructor. Always there to answer any questions at anytime � and I would recommend her as an instructor for any of the online KBI courses to anyone interested.  She is amazing!!!! Thank you “

Marsha Andrews, New Liskeard, Ontario

“Loved learning to do lashes here. Easy laid back atmosphere. “

Kim W, Windsor, Ontario

“Colleen is the most amazing person. I had the honour of being tought by her 31 yr ago . She has always been there along my journey as an nail Technician. If I needed anything all I had to do is call. You truly are a blessing to all of us . xo Angie”

Angie Gagnon, London, Ontario

Our Latest Blogs

Blogs that center around enhancing your beauty, body, spirit and soul.

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Learn to love your body, flaws and all. Yes, I know...But I have, But I am, But I don't have, But I can't... No matter what style or dressing issues you have they can be overcome. First, you need to know what suits you and then you can work around the issues you have. I am starting to share my Image and Personal Style tips again!  During this downtime I have more time and love fashion stylizing - showing men and women their best styles...

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I pray you are doing well and not worrying during this time of social distancing due to the Corona Virus. Seems much of the country is in a panic and worried about Covid-19. While we of course should be smart and practical by adhearing to intelligent suggestions (washing hands frequently, not touching our faces, staying out of large crowds, etc.), but we don't need to live in fear. How do we do that?

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