Doctor Stuns Internet by Injecting Botox into Only One Side of Her Face — The Transformation is Eye-Opening

In a bold and unconventional move, a seasoned physician has taken the internet by storm after showcasing the effects of Botox — but with a twist. Instead of treating her entire face, Dr. Bita Farrell chose to inject only one side, creating a real-life split-screen demonstration that left viewers astonished.

Dr. Farrell, a board-certified doctor with over 20 years of experience and a social media following topping 268,000 on Instagram, turned herself into a live experiment. Her goal? To give her followers a firsthand look at how Botox actually alters facial muscle behavior — and she did it with transparency and a touch of humor.

Rather than the standard full-face treatment, she injected Botox exclusively into the right side of her lower face. Two weeks later, she returned with a side-by-side comparison that revealed striking results.

In her viral video, Dr. Farrell explained that she had targeted two key muscles on the right side: the depressor anguli oris (DAO), which pulls down the mouth corners, and the platysma, a neck muscle that also influences facial movement.

Showing her face on camera, the contrast was immediate. The untreated left side remained naturally expressive, while the right side — now under the influence of Botox — appeared notably smoother and less animated.

“As you can see, this [left] side has much more muscle activity — it’s pulling my jawline down and creating deeper expression lines,” she explained, moving her face for emphasis. Pointing to the treated side, she added with a laugh, “I’m trying so hard to move this side!”

She went on to highlight the finer, more nuanced differences: the right cheek sat higher, the nasolabial fold appeared softened, and the marionette lines were less visible — all due to the relaxation of the downward-pulling muscles.

In her caption, Dr. Farrell broke down the science in simple terms: “Facial muscles either lift or pull down. When we relax the muscles that pull downward, the upward-pulling muscles take over, giving the face a naturally lifted look.”

She also noted that this type of treatment can reduce jowls, frown lines, sagging in the lower face, and even enhance the neck and jawline — all while giving the cheeks a more lifted appearance. And the best part? The results can last up to 3 or 4 months and can be achieved using any FDA-approved neuromodulator, not just Botox.

Of course, Dr. Farrell had no intention of staying asymmetrical forever. “Time to even things out!” she joked, reassuring her audience that the experiment had served its purpose.

Online, reactions poured in. One commenter wrote, “This was incredibly informative — thank you for being brave enough to do this!” Another added, “You just earned my respect. That was so real and helpful.” And someone else chimed in with surprise: “Honestly, I thought the untreated side looked better! Fascinating results.”

All in all, Dr. Farrell’s one-sided Botox demo served as a powerful visual lesson in how facial aesthetics work — and how even small changes can create big transformations.