^tried castor oil on my hair begore it just made it icky and oily na naailang shampoo ako bago matanggal lahat kahit konti lang nilagay ko.. I never noticed any difference in length..
Another ineffectve product for me is biotin, i took it straight for 6 moonths and nothing happened..
I just let it grow out, one year nako hindi nagpapagupit so far so good, ginugulot ko na lang yung split ends..another year pa siguro to achieve my desired length..