Kim Kardashian gets her face ''vacuumed''.

The 32-year-old reality TV star - who has four-month-old daughter North with partner Kanye West - undergoes a regular procedure to keep her skin glowing, and the process is aided by special mushroom facials.

A source said: ''Kim has been getting her face vacuumed once a week. The treatment uses a supersonic suction device that draws out blackheads, dead cells and impurities and hydrates dry skin by improving the blood flow and the lymphatic system. She also loves Japanese mushroom facial peels using reishi mushrooms for making her skin more elastic.''

However, one expert believes the fresh-faced look Kim showed off last month could be down to more than just good skin care.

Dermatologist Dr. Michael Prager told Britain's Grazia magazine: ''I think Kim has possibly had a 'mummy makeover' which would explain why she hasn't been seen that often since giving birth in June.

''Kim's forehead looks a little lifted, which could mean she's had a slight lift there. I suspect she's had Botox too.

''It appears she has had filler around her cheekbones to smooth out her cheeks and make them more lifted and slightly wider. I think also she's had filler injected into her nose and mouth lines.''