At $15 a bottle or more, I decided to try and reverse engineer this stuff. Joes Juice is also similar.
The basic ingredient is kalkwasser powder, or plain old lime. I use a shot glass to mix it. About a teaspoon of kalkwasser powder. Add about a half a teaspoon of corn starch. Add RO
water until you have a thin paste. Load that into a hypodermic syringe and you are ready to go. The corn starch is harmless and thickens the solution to help it stay put on the desired object.