Hello katy NSI is one of the best systems around along with CND etc, aslong as good aftercare is carried out obviously no product is indestructible! but most people I would say have 2-3 weeks wear and then some like complete soak of and new set but best infills and backfills from this point with regular maintenance appointments every 2 weeks I like to book people in
The majority of people come back to me every 2-3weeks although I do have the odd few people who can last 4weeks before coming back.i love NSI product it's brilliant
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