Best K-Beauty Hydrating Mask Too Cool For School Egg Cream Mask Hydration (£11) For skin that's feeling a bit out of whack – whether dry, sensitive or just a bit confused – this K-beauty mask is the SOS it needs. Containing vitamin-rich egg extracts, hydrating coconut water, and brightening niacinamide, this sheet mask leaves skin looking and feeling nourished and luminous in just 20 minutes. Image Source: cultbeauty.co.uk