Full lace wigs are natural in appearance due the lace base, some are better than the rest. If you do end up getting a less than stellar full lace wigs there are a number of things that you can do to give it a more natural appearance.
The hairline of a full lace wig is the tell tale sign of a wig or not. The whole point of a lace wig is to create a natural hairline. Unfortunately, some makers add too much hair in the hairline. This gives the human full lace wigs an unnatural appearance as natural hair progresses in density. You have two options.
The first option is to go to a professional lace wig maker or store to have the density altered on your full lace wigs . They will be able to customize the density as much as they can to the already created full lace wig. This will rather expensive but you will end up with the best results. If you will end up paying for the alteration as much as you did the wig, strongly consider option two.
In the privacy of your own home, you can tweeze the hairline to a desired density. First, brush back all the hair in the cheap full lace wigs and put into a ponytail. This will allow you to see the hairline better without extra hair in the way. You can then begin tweezing strand by strand in the very first row of the lace. You will want to tweeze alternating rows so that you do not over pluck one section. Every once in a while, make sure to try on the wig to see if the density is at your desired level or not. It is better to take your time, go slowly and check your progress than over tweeze. Once the hair is removed, you cannot replace it on your own.