better the wetting in the draves wetting test a 0 5 solution of dimethicone copolyol is used to sink a cotton skein the reported values are on a scale of 1 to 5 with 1 being almost immediate and 5 being over 5 minutes the following test was performed to determine the conditioning and combability properties the test hair used was 7 inch dark brown virgin hair from well known supplier demeo brothers five two gram tresses were used per product evaluated all tresses were pre washed three times with prell u00ae original shampoo rinsed in water at 25 u00b0 c and air dried the test scale was the hair treated in the conditioning study was combed 50 times the resulting hair was then evaluated for static build up the test scale was when softening agents are used to treat textile fibers they make the substrate soft but do some the hydrophobic what this means is that the substrate is soft to the feel but does not absorb water the reason for this is that the softness is due to oil loving materials deposited on the substrate we have all encountered soft towels that fail to absorb water it is critical to many applications for the substrate to be both soft and re wet hair that fails to rewet is referred to as u201c gunky u201d.