― I'm constantly on the lookout for something to help strengthen my nails. I try all the usual tricks, cuticle oil, massaging hand cream into my nail beds and a multi vitamin with Vit A&C to try and boost growth. They're usually in fairly good shape but serious rumblings in the Blogosphere about OPI's Nail Envy meant I had to give it a shot. ∙ Luckily at the Beauty Pro Expo in the RDS earlier this year there was a stand from Hennessy Hair and Beauty full to the brim with OPI delights. [...].