17 Jun 2021 --- Unilever is expanding its refillable packaging trials across the UK, including a first “return on the go” refill trial, in selected Asda supermarket and Co-op convenience stores.The FMCG giant’s household brands Persil, Simple, Radox and Alberto Balsam will be available in reusable stainless-steel bottles in selected Asda and Co-op stores by the end of 2021.