But there's also an entire community on the website, called "slug life" that back this theory up.
"I have the most sensitive skin ever. I get breakouts from EVERYTHING. Everything that is, except petroleum jelly. Shit is magic. I don't want to make an unsubstantiated claim, but I swear that it indirectly helps acne. My breakout areas are way less inflamed in the morning if I wear a mask of petroleum jelly on my face at night," one person wrote.
"I am still clearing up my current ovulation break out but the Vaseline has been a dream," another claimed.
"I was pretty nervous about trying it since it could lead to more break outs but my skin is so soothed. I actually stayed home from work yesterday to let my skin rest (that's how bad the break out was) and kept Vaseline on my large pimple that had popped on its own and scabbed over. I slathered my entire chin last night as well (I have several other pimples). This morning it's healed to a point that would normally take days."
Dermatologist Dr Rita Gupta told Cosmopolitan that it is not good for your acne!
"No, absolutely not," she began. "Vaseline is too occlusive (clogs pores) and is comedogenic. It can make acne worse.
"What you want is not a barrier cream but a rich moisturiser that attracts water into the skin."
It's important to remember that everyone's skin is different, and for best results you should definitely consult your doctor.