Look I love glass for its sustainability, and I love the serum itself - absolute treat, works great, I’ve had compliments on the smell, and you get a pretty great amount. I’d happily give it five stars, but I barely got a handful of uses out of mine before I bumped it and smashed it on my bathroom floor. Had a cry over the loss, but I don’t think I can stomach spending the money given I could easily do it again. Yeah it’s my mistake, but if you’re like me, bear the risks in mind and plan ahead. I gotta go clean up the glass and oil now and it will not be fun.