Q&A: Can we use Varisoft EQ 65 in a shampoo bar for fine hair? 

In the November Q&A, Sarah asked, Have you ever used Varisoft EQ 65 in a shampoo bar or conditioner bar? Is there any reason why it could not be used this way? Is there a pH concern for this ingredient? For a shampoo bar for fine hair (that I do not want to over-condition), could I replace…