Casdon
For years I’ve used Sally Hansen Hard as Nails, I spend hours in the garden and my nails don’t break or split. It looks like clear nail varnish on, so it physically protects your nails from drying out as well as strengthening them.
I use that, too. Probably not quite often enough, but IMO the clear layer does protect nails, as well as looking nice. (I do my own nails but never use coloured varnish any more.)
