The two services generating the most consistent client demand in Ireland right now are gel polish and BIAB. If you build your starter kit around those two and nothing else, you have a full working service menu.
Builder gel that lifts early almost always fails at prep, curing, or product compatibility. Not the gel itself. Every nail technician knows those three areas matter. What this guide covers is the specific part of each one that gets skipped, and why skipping it costs you the result even when everything else is right.