I know that dropping $40 on a leave-in spray may sound wild — though, they also have a travel-friendly bottle for half the price — but if you have the hair trifecta I have (fine, wavy and ...
As a result of a nonfunctional TGFA gene and a mutation in the KRT27 gene, the mice display a wavy coat phenotype ... resulting in golden hair rather than the black/agouti wild type mouse coat ...