there's a really affordable hair thickener called IH Hair Thickener, which u can find in UK's ebay. just search for it and the page will pop up. it's pretty cheap and if you're located in the UK, u can also get a free sample. it's not messy and pretty easy to use...for me dat is. thot it's a good try for cover up since hair's not really growing back covering up the scalp that's pretty visible! no harm trying i guess.....one of the cheapest in the market for the same effect i should say.