Well hair is considered a witness sample/taglock/ personal item. The same thing goes for fingernails, blood, semen, saliva, etc; basically anything from another persons physical body.
You can use them in various ways. Two of the most common are Honey jars and Poppets.
You can make a love honey jar and put that lock of hair into it. That will work really well. I made a post about it, you can check it out if you like:
Also if you happen to make poppets which is basically similar to voodoo dolls, except for the fact that the term “voodoo doll” specifically pertains to the religion of Voodoo. A poppet is just sympathetic magick by which you connect someone to a doll baby aka poppet aka voodoo doll. They work best when you have some hair or something belonging to the “target” to put inside it. It makes the connection stronger.
So these are just a few options besides burning the hair. Good luck with your love work! 