Have you tried jojoba oil? I found this article under "Curl411" that has reminded me how much I really like it, so this is the 2nd thread I'm quoting it in . I suppose even in England you may be able to get it at health food stores.
2A/3A, medium length, layered, colored dark/medium ash blonde - "CGer" since April '02.
"Converting the 'curlskeptics' one curly head at a time..." HWHC