Botox, chin filler, and everything Singles Inferno’s Kim Go-eun has done to her face

South Korean reality dating show Singles Inferno 5’s breakout star, Kim Go-eun, recently gave fans a candid behind-the-scenes look at her beauty and wellness routines in her “Guys I did it! I ANSWERED it! 🔥 | 100k Celebration Q&A” YouTube video. 

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At 25, Go-eun has always been conscious of her appearance on camera. She keeps her weight around 48 kg to avoid looking puffy and has experimented with everything from ice tools to depuffing teas, acupressure, ear patches, and facial contouring massages. 

But she admits that while these methods helped sculpt her face, the results were temporary. As her skin began to sag naturally over time, she turned to dermatological procedures for more lasting effects.

In the video, Go-eun openly shared several of the treatments she’s used to maintain her camera-ready face. Jaw Botox, for instance, is one of her go-to procedures. By injecting botulinum toxin into the masseter muscles, the treatment relaxes them, slimming the jawline and creating a softer, more defined contour while also easing tension and teeth grinding. In Singapore, jaw Botox sessions typically cost between SGD 360 and 580 per session, with results lasting about three to six months.

For deeper lifting and tightening, Go-eun has turned to HIFU, delivered via Ultraformer. This high-intensity focused ultrasound stimulates collagen beneath the skin, lifting sagging areas and maintaining a natural jawline and lower-face contour. A full-face HIFU session in Singapore can cost anywhere from SGD 800 to 3,500, while a combined face and neck treatment can range from SGD 1,200 to 4,500. Results usually develop over two to three months and can last up to 12–18 months.

She has also tried Onda Pro, which uses microwave energy to target fat cells while simultaneously tightening the skin. Go-eun has had only two sessions, primarily for the jawline, before filming Singles Inferno. In Singapore, Onda sessions cost roughly SGD 300–600 per session, with a recommended package of four to six sessions for optimal results. Effects appear gradually as fat is reduced and collagen stimulated.

Another treatment Go-eun credits with maintaining her youthful glow is Titanium Lifting, a laser-based procedure that promotes collagen production to firm skin and improve texture and radiance. In Singapore, sessions typically cost between SGD 1,500 and 4,000 depending on the clinic and area treated, and multiple sessions are recommended for the best effect.

In addition to these ongoing treatments, Go-eun revealed that she has had several past procedures. She used chin filler in college to create the illusion of length, which she later dissolved and re-injected for her modelling work. 

She also underwent double eyelid surgery to enhance eye definition and has received facial contouring injections for cheek and jaw refinement. 

Interestingly, despite rumours that she looked unnatural during the reunion special, Go-eun clarified that she hadn’t done any new procedures; the subtle changes in her appearance were simply due to minor weight gain.

Beyond her face, the style-conscious star is known for her chic shoulder-grazing bob, but she recently revealed her long-hair look in the video.

While she didn’t disclose which salon she frequents, research shows she visits Mum Hair Apgujeong (멈헤어), a highly-rated salon in Seoul’s Gangnam district, where stylist Jiyu works.