Yes,
They certainly did - Dingy whites was about the only thing more worse than a housewife not having her front doorstep scrubbed and the rinse water “joined” up with her neighbours rinse water by a certain time of the morning.
Persil was very good at appealing to women’s internal guilt of being subpar and not knowing what she should to achieve the whitest wash possible, exactly as mentioned in the business nightmares Persil Power program and also the washes whiter program. Persil was always marketed on the emotional side, about being a good mum, the keeper of the house and family. Ariel was always on the scentific side, they were this is what you need to get an immaculate wash and all your stains removed and that’s that.
From the about the 1 min 45 sec mark in this video
And if you watch the Persil and Ariel adverts in year order, from the playlist on the Laundry Lab YT channel, that format held very true from the advent of U.K. TV advertising in the 50s right through to the early 00s when advertising changed altogether due to the advent of social media, smartphones and streaming services. I do like old detergent adverts. Now it’s very, throw this pod in, keep away from children though and bye.