Amanda Bynes is back on Twitter.

After being absent from the social media website for 26 days, the "What a Girl Wants" actress returned looking better than ever. Bynes looked healthy and slimmer in the photo she shared with her 3.7 million fans on Twitter Saturday.

In her latest photo, the 28-year-old posed for the camera while showing off her belly button piercing in a crop top and a fitted knee-length skirt, along with black heels and large sunglasses.

"I'm loving Boutique Jules!" she captioned the photo, which was taken in the clothing store's dressing room.

An employee at the Valley Village, California, location confirmed that Bynes visited the store on Saturday and described the actress as a "lovely girl," according to E! News. The employee added that the actress "is the best customer we have had so far."

Since being released from an involuntary psychiatric hold at the end of October, the actress' questionable behavior has made headlines, causing family and fans to worry about her well-being. In October, she was accused of shoplifting from Barneys New York, and was photographed sleeping on a couch outside of Bloomingdales at the Beverly Center in L.A. in November.

Bynes has also been tweeting inappropriate messages about her family members. One claimed that her father, Rich, had sexually abused her as a child, and that he put a chip in her head. All tweets were later deleted.

Last month, the "Easy A" actress was caught on tape saying that she thought about murdering her parents, but later revealed on Twitter that she was only joking.

"I was obviously joking about hurting my family - I straight up don't believe in harming a soul."

Bynes has been living a simpler lifestyle without "visits to potential harmful environments like nightclubs or late-night parties," E! News reported.