Aloe vera is a medicinal plant that’s been used to treat various health conditions for thousands of years. It’s usually safe to use also vera directly from the plant or you can buy it in gel form.

Three and a half years ago, Jonathan “Penny” Leal was working a construction job. Now he’s a systems engineer at Linode, the Haddonfield, N.J.-based cloud hosting company moving to Philadelphia’s N3rd ...