The numbuzin Korean skincare brand has been exploding in popularity in recent years. Their formulas have a good combination of ingredients which is why they've been on my radar, amongst the many brands hyped up by influencers. There seems to be an official numbuzin store on Amazon and the black friday deals are some of the cheapest prices I've seen for their products recently.
List of boxing day deals. Apart from no.5+ in the deal link, the other serums are mostly discounted to $24.
I haven't used their products, nor have I worked out their numbering system but this numbuzin MY site seems to have a list of products for different skin types. I've been eyeing their no.3 glowing essence toner and it seems to be the cheapest price around at the moment at $19.20.
There are no shortage of reviews online if you want to try any of the products.
I have the No. 3 toner and No. 4 serum but only use them once a week as they can cause me to break out. The toner does give a lovely subtle glow.