Shockwave (because it is enzyme based and digests protein) Powerburst, Fabric Restorer. Sometimes none of the above will completely remove heavily engrained hair oil, so when it stops responding put a line of Citrus Gel down the centre of your tampico brush then spray some of your prespray on it ( this dissolves the CJ from a cream to a liquid so that it spreads across the area) then brush it into the hair oil and thoroughly extract.
Simon