Hi. I’ve also been using INK London products for about 4 years now.
They are my brand of choice. They develop and produce their own products within the EU and UK and actually have their own chemist. They have a fantastic support team who are always happy to help and offer as cue.
Their product range is constantly growing, including the new coloured Flubbers that were released very recently, and also their soak-off builder in a bottle , SOBIAB.
I have always found their products very hard wearing and my clients love them too.
Join their Facebook group. Everyone is so helpful there