Depends on what one means by coloured laundry. For pastels and brights, then normal Persil should be fine. However for dark and or certian other colours, especially those which might bleed and or fade,Persil for colours is a better choice,
Unlike normal Persil, Persil for colours does not contain oxygen bleaches or bleach activators, thus will not fade colours with repeated use as normal Persil. Normal Persil used an activated perborate bleaching system, which bleached quite effectivly at warm and even cool water temps, thus could cause some colours to fade. Henkel has since switched to percarbonate bleach, but that will still bleach in warm, cool and even cold water.
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