The eyes are said to be the window to the soul, but in Lindsay Lohan's case, it might just be her teeth.
The troubled starlet was flashing a brighter smile when she stepped out this past weekend.
It was a big difference than last week when photos surfaced of her displaying less than pearly whites on the red carpet, causing a stir online.
In earlier photos, Lohan's teeth appeared yellowed and decayed. Her hands were also streaked with nail polish and blotches.
Popeater gossip columnist Rob Shuter believes the state of Lohan's teeth then were "a telling sign for what's going on in her life."
"Those teeth are really alarming," he told ABCNews.com. "That doesn't happen overnight. That's months and years of neglect."
Lohan's rep Steve Honig did not seem at all worried about the Internet reports.
"I think of all the things going on in the world today -- from deteriorating public education to rampant homelessness to political unrest -- there is no way I'm going to comment on Lindsay's teeth," Honig told ABCNews.com.
"I get a lot of calls asking me to confirm absurd things about Lindsay," Honig said. "But this thing with the teeth has to be the most absurd."
At first, Lohan seemed oblivious to the impression her teeth might cause as she smiled wide for the cameras last week.
"There doesn't appear to be anybody around her telling her the truth -- or nobody around her period," Shuter said.
Lohan certainly has bigger problems than her teeth.
TMZ reported last week that the problem-prone star was In July, Los Angeles Superior Court Judge Stephanie Sautner ordered Lohan to serve 360 hours at L.A.'s Downtown Women's Center. Sautner required Lohan to be reliable, non-disruptive and serve at least four hours at a time.
According to TMZ, Lohan failed to show up for nine scheduled visits and when she did make an appearance, she often ducked out after working less than the required time. TMZ said Lohan was kicked out of the Women's Center for these violations.
Now, according to "Access Hollywood," the 25-year-old actress has taken her services to L.A.'s branch of the American Red Cross.
Honig confirmed to ABCNews.com that Lohan is doing her community service at the Red Cross, but he declined to comment beyond that.
It's not clear how this development may affect her probation. Lohan has another hearing in front of the judge in Los Angeles on Oct. 19.
"She's had so many chances," Shuter said. "I don't know how bad things have to get."
If Lohan is anything like other celebrities, her vanity could serve as a wake-up call.
Shuter said seeing pictures of Lohan's tarnished teeth all over the Internet might be more upsetting to her -- not to mention her potential employers -- than her behavior alone.
"This might be her Achilles heel that makes her figure out that she'd better get it together," he said.