Site feedback and online store help

Site URL: https://www.brendasbeautybar.co.nz/

We are a beauty therapy clinic in New Zealand and am in the process of setting up an online store to sell our face products along with home and body products we also stock i.e candles, room sprays, body lotion etc.

Im not sure how to structure the products to enable customers to navigate to the right face products for their skin concern and type i.e cleanser vs serum but also list everything else that we want to sell.

When I look at the navigation its a bit strange that if you click into Medik8 and then cleansers you cant actually see that your on the cleansers page and then there is no logical way to navigate back to medik8 options again.

Im also no pro so would love general feedback and advice about the wider site.

All help welcome!! Thanks so much!!!