What is the average price of nose fillers in the Gangnam area these days?

I'm still scared of surgery, so I'm looking into nose filler prices first. However, it's hard to compare because prices seem to vary so much from clinic to clinic. I'm also unsure whether to start with domestic or imported products. Rather than just looking for the cheapest option, I want to go to a trustworthy place that uses genuine products and the correct dosage. If anyone has recently had nose fillers, could you please share the price and where you had them done?