BioSilk Silk Therapy: Review and What Else to Try
BioSilk Silk Therapy has been a bathroom-shelf shine serum since 1986, built around hydrolyzed silk and a lot of silicone. Here is the full Silk Therapy line, the serums and oils that do a similar job, silk bonnets and pillowcases for sleep, and the heat protectants I would use before styling.