You know this free Persil ProClean laundry detergent sample is legit because the guy's wearing a bow tie. Glad to see I'm not the only person who does my laundry in formal wear.
Look for the red button that says “Request Your Free Sample And See Offer Details” near the bottom of the page. It will then load a Sampler.io page that will ask for 3 or 4 demographic questions, then let you know if you qualify. It seems most people are getting the freebie, even myself! After you're selected, the free detergent should arrive in four weeks.
They ran almost the exact same freebie promotion at the same time in 2019 and 2017. Seriously, I published the first version of this post on Feb. 5, 2017 and then again on Feb. 5, 2019. They must love this promo during the winter!