i wear an sfs lace but in some lightening the lace is obvious and other lightening its undetectable i use I-Glue for the front but again didnt disappears totally i was using ultrahold for the front but it gives alooooot of shine no matter what i let it dry or press the shine so is there anyway possible?

I like Perfectors Glue.....works very well. Highest quality glue I have seen. It's expensive, but the bottle lasts very long. Also, if you have too much lace in the front, you will need to trim it fairly close to the hairline. I used to leave too much and had this problem of the lace being visible.