My hair stylist wears Blackpool Shellac and her nails are fantastically improved since she has been wearing Shellac. She could never seem to grow her nails before !
Now if your stylist's nails are in good condition after removing the enhancements, then she will not have any trouble growing her nails, but if they are in poor condition, then it may take 6-12 weeks of Shellac to grow them through. Work it! You can do it. It may not last as well to begin with if nails are weak, as Shellac does best on healthy nice nails .. Healthy nails are after all the nails Shellac was invented for. But at least with Shellac, there is no further weakening of the nails as you do not buff them ever.
My advice is use Shellac. If on damaged nails, Use an extra coat of top coat at first to add a bit more strength. Keep nails short and neat to begin with and until grown through and strong again. Her nails may look quite dehydrated in the first couple of months until the new unblemished surface comes through. You know what is happening under there ... No false expectations. She will be going through a process of re-growth. But persevering is the only way she will grow her nails without further damage and they will look nice while she is doing it.
That is the REAL answer ... No falsehoods, no silly claims ... Reality. The rest is up to her and regular use of SolarOil.