I've tried a synthetic injected into a PSB base just to say I've tried it. The hair looked good in the system. However, a synthetic just doesn't blend with your real hair. It's most noticeable when you're standing in the sunlight. Your natural hair reflects the sunlight differently than the synthetic hair--even if the color is spot on. When I had my stylist do the cutin he wouldn't use his good scissors on it---he went into the back room to get an old set of scissors to cut it in. There's nothing like real human hair--it looks natural, feels natural, and moves natural. It styles better. We can get synthetic hair if you want it but I don't recommend it.
Regards,
John