There's no scientific basis on making a love potion but, i'll suggest that if you want someone to fall inlove with you, all you can do is be the nicest you can be to her/him.
make her/him feel that you're a good person and dont ever ever let them feel that you're a threat just like the other guys flirting outside.
compliment her/him everyday (if possible) and you need to fall in love on him/her first , so she/he would fall inlove with you too.
(this is my opinion,goodluck and godbless)
I don't know if the spell really work, but the real spell is the beat of your heart. Every individual has already a partner all you need is to find that person. if you will going to have a spell it will not make you happy for real just let your heart open ang he/she enter unto you.