Buy one, get one half price on a selection of products at Holland & Barrett. Get two Dr Organic Pro Collagen 50ml moisturisers for £28.48, or get one for £18.99 each. You can also buy Meridian Coconut & Almond Butter (170g) and Coconut & Peanut Butter (280g) on a buy one, get one half price offer, where the cheapest item is half price.