Is English sufficient for consultations in Seoul?

Hi everyone, I'm Ngoc from Vietnam. I'm planning a trip to Seoul next month to explore beauty services, but I'm a bit worried about communication. My English is just okay, not great but I can understand the basics. Should I learn some Korean, or will English be sufficient for consultations?

I've heard that beauty clinics in Seoul cater to many international clients, so can they arrange for interpreters or staff who speak English? Has anyone with similar experiences been able to share? I'm concerned that if communication isn't smooth, I might misunderstand their recommendations or be unable to clearly explain my concerns.

Thanks in advance!