Sigma Beauty

I notice there's a mismatch between the brand name requested (Sigma Beauty) and the source material provided (about Merck Group, a German pharmaceutical and chemical company). The Wikipedia content describes Merck, a science and technology conglomerate founded in 1668 that operates in healthcare, life sciences, and electronics sectors. This doesn't align with Sigma Beauty, which is a cosmetics brush and beauty tools brand. I cannot write an authentic brand description for Sigma Beauty using source material about Merck Group, as this would violate the instruction to use only facts from the provided source. Could you please provide the correct source material for Sigma Beauty, or confirm which brand description you'd like me to write?

Source: en.wikipedia.org