Is this good to use on a human hair weave?

Yes, this product is simply amazing. This product smells good, makes hair soft and adds shine. I highly recommend if anyone is considering to purchase.

Is this ok to use on color treated hair daily?

Although I have tints and highlights, I use it regularly.. This product is pretty much an deep condition leaving in time nor more than 10-15 minutes..

Is it good for synthetic wigs?

I never used it on synthetic hair. If you are thinking of doing so, I would use a very small amount. It is a rich conditioner.

I've straigthened my hair using "chi transformation" ...so is it possible to use this product without affecting it?

Not sure.....I felt like this product left my hair kind of greasy at the same time dry if that makes any sense. I would not recommend. I love their deep conditioner however!