The Inkey List Hyaluronic Acid Hydrating Serum The Inkey List Hyaluronic Acid Hydrating Serum (£6) offers intense hydration with hyaluronic acid plus a peptide to support natural collagen production and plump up skin. Image Source: cultbeauty.co.uk The Inkey List Hyaluronic Acid Hydrating Serum £6 from cultbeauty.co.uk Buy Now