Influencer warned he wouldn't see 40 launches skincare system after nine stone weight loss Marc McKee wants to help people going through the same transformation he's experienced after his nine stone weight loss. 13 May 2026 UK influencer Marc McKee has launched a skincare system after losing nine stone on Mounjaro. Renatus Collective's Marc McKee The 36-year-old Northern Irish influencer, who was warned by his doctor that he might not live to see 40, has launched ElastiK° Skin, which is the UK's first founder-lead skincare system born directly from a nine-stone GLP-1 transformation.