When I used to get my hair sewed in I would alwyas wait until I saw new growth. Whenever I got it done right after I relaxed it would always loosen too fast. Even now that I use the clip in weave I still wait until I have some new growth to keep it from being too stressful on my hair. Even though its cheap I use the Princess Yaky when I make my clip in extensions because it matches the texture of my hair so much that no one knows this isn't all my hair
. And because I only buy the 12 inch in black it's only $7.99 a pack. It usually lasts me about a month to a month and a half before I redo them. I could wear them longer than that but that's around the time I think they start to look tacky so I just redo them
HTH
Mya