Acrylic, and from Amazon (where else). I originally ordered a 100ml in glass, but I figured this would be a little more durable when I store it.
https://www.amazon.com/gp/product/B00AZ3A8JA/?tag=fabo03-20
But if you really want glass, 100ml for $38
https://www.amazon.com/dp/B00ZT8VSYK/?tag=fabo03-20