I found a website offering Pineal Guardian called pineal-guardian.com. Why was the promo piece I asked you about using the brand name “Pineal Guardian X?” Are these marketing the same supplement from the same supplier or is one an imposter/imitator?

These are the same supplement from the same source. The promo piece is a marketing outreach that has been around for some time, and the name change appears in that outreach but is not reflected on the website.