This color is very stable in cold process soap. As with most green micas, this color may turn a darker brown or murky gray during saponification. If this happens, please wait up to 48 hours for the original green color to return in cold and hot process soaps. The color change will not occur in melt and pour soaps, due to these types of soap having a lower pH.
To use in cold process soap, you may add this color directly to your very thinly traced soap batter and stir with a hand blender. You may also blend with a bit of your soap making oils first, and then add this blend to your soap. Both methods work very well and which one you choose is your preference.
To use this mica in melt and pour soaps, add to a bit of 91% or higher rubbing alcohol first to fully disperse the mica. This will ensure you do not have clumps of color in your MP base.