I use a variety of suppliers for M&P non-bleeding colorant - powdered oxides, liquid oxides, micas, glycerin-based non-bleeding colorants, etc.
I have yet to find a supplier who can package a glycerin-based colorant in a plastic bottle that doesn't become impossible to use, with colorant pooling around caps, dripping down sides or clogging the "dropper." I once squeezed a bottle so hard that the seal came off and I had an entire two ounces of colorant in 8 ounces of soap. And, cleaning up the cap with a cloth wastes a huge amount of colorant.
I have tried thinning them with additional glycerin or other carrier to no avail.
The one successful solution I have found are the thin, non-bleeding liquid dyes from Nature's Garden. I use my own disposable dropper with those. But, I'd love other alternatives.
Of course, Lab Colors are sublime mixed in water, but bleed, of course.
Does anyone have a solution to this problem? Am I the only one who struggles with this? Has anyone tried heating these briefly to thin them out without losing their power to color?
Thanks -
Connie
http://www.soaprhapsody.com