Where can I get good quality 100% human hair microloop extentions?

What are some websites that are affordable but good quality? I need curly microloop 100% human hair extentions. Color 4/27. I have thin hair so I can’t have bad quality.

I do not recommend them, specially if you’ve got thin, thinning hair, trying to grow hair or Afri-Amer hair.

Example from Jennifer Aniston: "It was about 100 percent humidity, so the frizz factor was through the roof. I brought along Living Proof products with a healthy skepticism. I wore a half-wig on this film, and the girl who was washing the hairpiece wasn’t using my shampoo. So we would go outside and the rest of my hair would be totally tame and perfect, and the top [wig] part — which I called my toupee —would just start to look like pubic hair. It would take on a whole new texture of its own.”

May 22, 2011: Model and businesswoman Katie Price, who was formerly topless model Jordan, is demanding compensation from a top Los Angeles hair salon after she spent $17,000 on hair colourings and extensions that she claims were botched, leaving her hair so damaged it began falling out.

"Hair extensions can cause some damage to your real hair," says Placid Braganza, a design artiste. "Since they are attached using thermal heat, knotting, braiding or gluing, they can hamper hair roots or even break, split or burn hair strands if not done carefully," he adds.

Published 8-10-12: Even supermodels have bad hair days, but from the looks of this recent photo, Naomi Campbell appears to be dealing with something far worse.
A photo of the 42-year-old beauty vacationing in Ibiza earlier this week shows what appears to be a receding hairline.
Florida hair surgeon Dr. Alan Bauman, who has not treated Campbell, said the former supermodel appears to be suffering from traction alopecia — hair loss due to extensions.
“Extensions, weaves, anything artificial hanging on hair — no matter whether you attach it with glue, special magnets, tape — it’s going to cause damage over time,” Bauman told ABCNews.com. “And unless you give your hair a break from those extensions, it won’t rebound.”

READ: Health Hazards of Hair Extensions – ABC news. http://abcnews.go.com/Health/WomensHealth/health-hazards-hair-extensions/story?id=18411026

Traction alopecia is hair loss that occurs as a result of continuous pulling of the hair. Pulling may occur from hairstyles such as tight cornrows, plaits or braids with or without extensions, weaves, ponytails or even hair rollers or curlers. Natural hairstyles can also lead to traction alopecia as well. Long heavy locks and tightly coiled twists can lead to traction alopecia. The hair loss associated with traction alopecia typically occurs at the frontal hairline, at the temples or the area of the scalp above the ears. It may also occur at the posterior hairline. http://search.yahoo.com/search?ei=utf-8&fr=aaplw&p=traction+alopecia+naomi+campbell
Google: Hair extensions causing young women to lose hair June 6, 2013.
Randee Bank also had problems after using hair extensions. "I still have bald spots. The hair has not grown back," said Bank.