Diffuser by Cowshed, Room diffuser, Enriched with calming essential oils of lavender and eucalyptus, Natural rattan reeds, Apothecary-style glass bottle. Its product names may be playful, but Cowshed is serious about all-natural skincare. Since opening its first spa in a disused cowshed in 1998, the brand has developed a range of body lotions, shower gels and scrubs made from organic plant extracts and essential oils. Refresh your space with scented candles sets, or pack its mini travel kits to go.