Durex Natural Pleasure Gel Pure (100ml). Many women find that adding lube enhances their sexual experience and with many women suffering from a bit of dryness at different times in their menstrual cycle – using lube is completely normal.. Durex Naturals Pure Lube is made with 100% natural ingredients and is designed to make sex feel even more smooth.The gentle water-based formula has no added fragrances or colours, is pH friendly, and works gently with your body to moisturise your intimate areas for comfort that feels totally natural.