It is very important to start with a white base. Soaping oils that are yellow or green will affect any color. Do not add Titanium Dioxide to whiten the base, as this will make the red more pastel.
Do not use more than 2 teaspoons per pound! You don't need to. This color is a rich red at 1.5 - 2 tsp. per pound of oils (a great use rate for red). More will make a more brick colored red than using it at the recommended use rate. Using Trial by Fire at 1 tsp. per pound will make a very rich rose color that is quite beautiful as well! 1.5 - 2 tsp. per pound of oils is the perfect use rate in our testing.
We have tested this color with normal use rates in several soaps and have not experienced bleed or migration. It's a perfect, true red every time.
Trial by Fire is a mica-based pigment. It will need to be blended into your soap well for best results. You may portion off a tablespoon (or so) of your soap making oils and disperse the color before adding it to your soap.
When used at 2 tsp. per pound of oils in CP soap, this red would transfer to a washcloth but once rinsed, came right of the cloth. You may want to test a small amount for staining if you are concerned that this color may stain washcloths.
This color does not migrate at 2 tsp. per pound of oils.Migration is when one color bleeds into the other in soap. We have many samples of this red used against white in cold process soap. Absolutely no migration has occurred. The use rate of testing was 2 tsp. per pound.
We discovered a small recipe tweak that makes Trial by Fire even brighter! Batches 330666 (beginning 12/16/19) and after contain the formulation change. The ingredients deck and use rate did not change.