Hi Nancy, I recently attempted to find Refractol for a new faceter. I wasn’t able to get any from the sources that listed it. So, I did some homework and found that there is a really good replacement that is less messy and safe to use. It is Benzyl Benzoate, RI 1.568. This is available in 50 ml bottles at several online chemical suppliers. It is way less expensive than Refractol and less smelly too. I am no longer using my last bottle of Refractol after using this better disclosing liquid.