At SoapQueen we mix the colorants ourselves in order to guarantee freshness.
Pigment solutions are not water-soluble but have the advantage of being "non-bleeding".
The colorant can become splotchy in case it is used in fizz products.
These colorants are directly purchased from the producer. Due to this, SoapQueen offers an interesting price in case of larger purchases. Dry pigments have a shelf-life of 10 years. Mixed colorants have a shelf-life of about two years when using the right preservatives.
For larger purchases or re-sellers we always advice to buy freshly mixed colorants.
NOTE: Shake well before use.