We strongly recommend that you read the complete product description and instructions for each product separately. Each product is described in detail on our website. If you are still in doubt about the ingredients and use of the product, please contact us. Specify exactly which product it is and ask a clear question about what you are interested in so that we can help you and offer the optimal answer. You will learn more about our products in our courses, where we learn about glues, different eyelash styles, which extensions are most suitable for certain techniques, etc. Read more about our courses at https://puella.si/tecaji-podaljsevanja-trepalnic/ .