How to set an offset value in a range

I'm trying to copy data from column B to column AO if column C meets a condition. My problem is I don't know how to set the result value. (non-programmer)

Sub MoveSubDescToAtt()

   For Each Cell In Range("C:C")
      If Cell.Value = "[No Product Description]" Then
       Cell.Offset(0, 38) = "I need this cell to equal the contents of what's in column B, same row) 

      End If
    Next

End Sub

Thank you in advance.

Is this what you're looking for? Not much different from what you had:

Sub MoveSubDescToAtt()

   For Each Cell In Range("C:C")
      If Cell.Value = "[No Product Description]" Then
       Cell.Offset(0, 38) = Cell.Offset(0, -1).Value

      End If
    Next

End Sub

or

Sub MoveSubDescToAtt()
Dim r As Range
For Each r In Intersect(ActiveSheet.UsedRange, Range("C:C"))
    If r.Value = "[No Product Description]" Then r(1, 39) = r.Previous
Next
End Sub