Drunk Elephant B-Hydra Intensive Hydration Serum This Drunk Elephant B-Hydra Intensive Hydration Serum (£40) is my personal favourite and usual everyday serum. Read my full review here. I simply add a little of the Protini to it when I need a little pick-me-up. Image Source: cultbeauty.co.uk Drunk Elephant B-Hydra Intensive Hydration Serum £40 from cultbeauty.co.uk Buy Now