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\n Related: <\/span>Celebrity Longevity Treatments Ranked: Which Trends Are Worth It?<\/span><\/a>
\n\t\t<\/h3>\n<\/p><\/div>\n\n\t\t\tCelebrity-approved longevity treatments \u2014 from cold plunges and red light beds to NAD+ drips, stem cell injections and peptide shots \u2014 are dominating wellness feeds and high-end clinics, but the science behind these anti-aging trends is uneven at best. Backed by A-list names but often mixed in evidence, these therapies are being marketed as ways [\u2026]\t\t<\/p>\n<\/div>\n
What Is Anti-Aging the Bacteria Found in Human Blood?<\/strong><\/h2>\nThe bacterium is called Paracoccus sanguinis<\/em>, and it\u2019s been living in human blood since before anyone knew it was there. Scientists only identified it in 2015. In a study published in the Journal of Natural Products<\/em> in May 2025<\/a>, researchers found the bacterium produces three compounds that had protective effects on human skin cells in lab tests. Two of the three compounds had never been seen before.<\/p>\nWhen applied to skin cells under stress, the compounds reduced reactive oxygen species (which are linked to inflammation), cut levels of two inflammatory proteins and blocked an enzyme called MMP-1 that breaks down collagen.<\/p>\n
One compound, called metabolite 11, stood out as the most effective, and researchers say it\u2019s the strongest candidate for future anti-aging applications. The research was funded by the National Research Foundation of Korea, the BK21 FOUR Project and the National Supercomputing Center.<\/p>\n
\n\t\t\t<\/p>\n\n![\"GettyImages-1220842438](\"https:\/\/www.usmagazine.com\/wp-content\/uploads\/2026\/06\/GettyImages-1220842438-inside-stress-relief-biology-and-how-fitness-rewires-the-brain.jpg?crop=719px%2C102px%2C1281px%2C722px&resize=400%2C225&quality=40&strip=all\")
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\n Related: <\/span>Inside the Biology of Stress Relief and How Fitness Rewires Your Brain<\/span><\/a>
\n\t\t<\/h3>\n<\/p><\/div>\n\n\t\t\tWhen stress builds up, the gym is often the last place anyone wants to go. But a growing body of research suggests that fitness may be one of the most effective tools available for managing stress, lifting mood and supporting long-term mental health. From neighborhood walks to structured strength training, physical activity changes brain chemistry [\u2026]\t\t<\/p>\n<\/div>\n
Can I Use This Bacteria for My Skin Right Now?<\/strong><\/h2>\nNot yet. These are lab results from cells in a dish, not from real skin on a real person. The compounds have never been tested in humans, and nothing on the market today contains them, despite what some marketing might suggest. If metabolite 11 eventually gets developed into something usable, that process would likely take years.<\/p>\n
What Did the Mount Sinai Stem Cell Aging Study Find?<\/strong><\/h2>\nThe second study comes from Mount Sinai and tackles a different part of the aging puzzle entirely: blood stem cells. Dr. Saghi Ghaffari<\/strong> and his team at the Icahn School of Medicine found that stem cells, which produce all of your blood cells, age in part because of a problem inside a structure called the lysosome, which acts like a recycling center for the cell.<\/p>\nIn aged mice, the lysosomes inside these stem cells became overly acidic, damaged and started working abnormally. When researchers fixed that problem, the old stem cells started acting young again. They regained their ability to regenerate, and inflammation linked to aging dropped too. Ghaffari described the findings simply<\/a>: \u201cOur findings reveal that aging in blood stem cells is not an irreversible fate.<\/p>\nOld blood stem cells have the capacity to revert to a youthful state; they can bounce back.\u201d The study appeared in Cell Stem Cell<\/em> in November 2025<\/a> and was funded by the National Institutes of Health, New York State Stem Cell Science, INSERM and the Agence Nationale de la Recherche.<\/p>\n\n\n\t![\"\"](\"https:\/\/www.usmagazine.com\/wp-content\/themes\/us-weekly\/assets\/img\/newsletter-bg-narrow.jpg\")
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You have successfully subscribed.<\/p>\n<\/p><\/div>\n<\/div><\/div>\n
The bacterium is called Paracoccus sanguinis<\/em>, and it\u2019s been living in human blood since before anyone knew it was there. Scientists only identified it in 2015. In a study published in the Journal of Natural Products<\/em> in May 2025<\/a>, researchers found the bacterium produces three compounds that had protective effects on human skin cells in lab tests. Two of the three compounds had never been seen before.<\/p>\n When applied to skin cells under stress, the compounds reduced reactive oxygen species (which are linked to inflammation), cut levels of two inflammatory proteins and blocked an enzyme called MMP-1 that breaks down collagen.<\/p>\n One compound, called metabolite 11, stood out as the most effective, and researchers say it\u2019s the strongest candidate for future anti-aging applications. The research was funded by the National Research Foundation of Korea, the BK21 FOUR Project and the National Supercomputing Center.<\/p>\n \t\t<\/a><\/p>\n \n\t\t\tWhen stress builds up, the gym is often the last place anyone wants to go. But a growing body of research suggests that fitness may be one of the most effective tools available for managing stress, lifting mood and supporting long-term mental health. From neighborhood walks to structured strength training, physical activity changes brain chemistry [\u2026]\t\t<\/p>\n<\/div>\n Not yet. These are lab results from cells in a dish, not from real skin on a real person. The compounds have never been tested in humans, and nothing on the market today contains them, despite what some marketing might suggest. If metabolite 11 eventually gets developed into something usable, that process would likely take years.<\/p>\n The second study comes from Mount Sinai and tackles a different part of the aging puzzle entirely: blood stem cells. Dr. Saghi Ghaffari<\/strong> and his team at the Icahn School of Medicine found that stem cells, which produce all of your blood cells, age in part because of a problem inside a structure called the lysosome, which acts like a recycling center for the cell.<\/p>\n In aged mice, the lysosomes inside these stem cells became overly acidic, damaged and started working abnormally. When researchers fixed that problem, the old stem cells started acting young again. They regained their ability to regenerate, and inflammation linked to aging dropped too. Ghaffari described the findings simply<\/a>: \u201cOur findings reveal that aging in blood stem cells is not an irreversible fate.<\/p>\n Old blood stem cells have the capacity to revert to a youthful state; they can bounce back.\u201d The study appeared in Cell Stem Cell<\/em> in November 2025<\/a> and was funded by the National Institutes of Health, New York State Stem Cell Science, INSERM and the Agence Nationale de la Recherche.<\/p>\n You have successfully subscribed.<\/p>\n<\/p><\/div>\n<\/div><\/div>\n<\/div>\n<\/figure>\n\n\t\t\t
\n Related: <\/span>Inside the Biology of Stress Relief and How Fitness Rewires Your Brain<\/span><\/a>
\n\t\t<\/h3>\n<\/p><\/div>\nCan I Use This Bacteria for My Skin Right Now?<\/strong><\/h2>\n
What Did the Mount Sinai Stem Cell Aging Study Find?<\/strong><\/h2>\n
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