I have had many clients who came to me with the same problem - when pre-bonded hair extensions would slip out. Usually, the hair extensions that were used were purchased from ebay for no more than £50, which come from China. The quality of such hair and also the glue is not the best. That's why some people had problems. I, personally, use SO.CAP hair extensions. The glue is very strong, some clients would even use a conditioner and they wouldn't slip out. Never had problems with these extensions.
Hair Extensions by Natalana. Mobile in South Wales and South West England - mobile hair extensions
Where can i buy these from? Also do they use soft keratin or italian hard keratin?