This is the best nail stregthener I've ever used. I had had acrylic nails which left my own nails thin, weak & peeling.I tried everything to improve them, all the big names. One even cost £18 a bottle but it didn't help. I tried this nail balm and its been great. My nails no longer peel and are growing again so they are thicker & stronger. I have 2 words. BUY IT.