If you\u2019ve ever turned on the TV, read a magazine, or stood next to a beauty editor for too long, then you\u2019ve already been inundated with facts about retinol \u2014namely, that it\u2019s the best thing ever, that it\u2019ll completely change your skin/life, and that you need to be using it ASAP. Seeing as you\u2019ve probably ignored all of this unsolicited advice thus far (\u201cUgh, I\u2019ll add it to my to-do list,\u201d you say), I would like to present to you this Reddit post that will completely and totally change your mind after approximately one second, thanks to its photo of a woman\u2019s insane before-and-after retinol results . Get Ready For It In a post titled \u201cHard work and retinol rlly make a difference,\u201d Reddit user Egotr4p shared a side-by-side photo of her skin before and after starting retinol. \u201cI never thought I would be where I am now,\u201d she writes in the comments. The left photo shows the user\u2019s broken-out and irritated skin, next to a photo of her current smooth, bright, acne-free skin after two years of using retinol. \u201cI did not go to a derm,\u201d she writes , \u201calthough I had access to RX retinol.\u201d According to the rest of her comments, the Egotr4p uses tretinoin .025 percent\u2014a prescription-strength retinoid that\u2019s available only via a prescription (though, don\u2019t worry, you can get the same results with over-the-counter options, too). Why It Works If you\u2019re wondering WTF is in retinol that allows it to create such drastic before-and-afters, it\u2019s not so much the ingredients, but what they does to your skin. Retinoids (the umbrella term for all vitamin-A derivatives, like retinol) sink into your skin and trigger faster cell turnover and collagen production, creating newer, smoother, skin. And all of that means pores stay clear, breakouts diminish, fine lines soften, and acne scars fade. Retinol really is a freaking queen. Of course, Egotr4p adds that retinol hasn\u2019t been the only change she\u2019s made to her routine in the last few years\u2014she also went vegan, which has \u201cimproved the texture of my skin and frequency of pimples appearing,\u201d she says . (Fact: Dairy actually can contribute to acne and inflammatory skin conditions.) But don\u2019t freak if you\u2019re not ready to completely change your diet\u2014retinol will still get you noticeable results within just a few months, as long as you stay diligent with it. Just be aware\u2014starting retinol can, annoyingly, cause a few weeks of irritation and breakouts, so to mitigate the side effects, go slowly: Apply a pea-size drop of retinol over your entire face just one night a week for one week, two nights a week for two weeks, three nights a week for three weeks, and then every other night indefinitely. Now, are you finally convinced to use a retinol? I'm going to go ahead and hope your answer is yes. Otherwise, you are a masochist, and I can't help that.