<\/p>\n
Kiehl\u2019s is stepping into one of skin care\u2019s most pressing new categories with Power Plump 1CC CollaShot Serum ($55), a gel-to-serum treatment formulated specifically for the volume loss that comes with GLP-1 medications. The brand is calling it plumping \u201cwithout the needle,\u201d claiming a visible surface effect equivalent to 1cc of hyaluronic acid filler.<\/p>\n
The formula centers on the brand\u2019s proprietary Pink RHC Collagen alongside vitamin B12 and a collagen-supporting active blend of Rhamnose and Proxylane. Kiehl\u2019s Supra-Liposome technology is meant to \u201cpush\u201d absorption further than traditional collagen serums, and the B12 complex gives the jelly-textured formula its signature pink tint. The brand recommends using it twice daily.<\/p>\n<\/div>\n
What sets this launch apart is the GLP-1-specific testing behind it. Kiehl\u2019s ran clinical trials across 16 skin-aging attributes in GLP-1 users specifically, reporting a 22 percent improvement in cheek elasticity after eight weeks. At the four-week mark, 94 percent of GLP-1 users in testing agreed the serum help address radiance, 90 percent said facial contours looked more defined and 93 percent said skin looked plumper.<\/p>\n
It\u2019s a direct response to a skin concern dermatologists have been fielding more of as GLP-1 use has climbed. \u201cPatients on GLP-1 medications experience fat loss to varying degrees, and because cheek volume depends on both fat and collagen, that loss can make the face look flatter or more deflated faster than typical aging alone,\u201d says New York dermatologist Jane Yoo, MD. \u201cI recommend a serum like this as part of a proactive collagen strategy to support the skin\u2019s structural health during weight loss and as a maintenance step alongside in-office procedures. It won\u2019t replace injectables, but it helps the skin stay resilient through the changes GLP-1 patients are experiencing.\u201d<\/p>\n
New York dermatologist Dendy Engelman, MD sees the same pattern in her own patients. \u201cAs facial fat diminishes, patients often notice their skin appears thinner, less resilient and less able to \u2018bounce back\u2019 because the underlying collagen network is under greater mechanical stress,\u201d she says. What sets this formula apart from the crowd, in her view, is what it\u2019s built around. \u201cMost plumping serums lean on hyaluronic acid or glycerin to pull in water and create a temporary filling effect. This formula is signaling toward the skin\u2019s own collagen production pathway, using a biotech-derived polypeptide rather than a traditional marine or bovine-sourced collagen, which tends to sit on the surface rather than communicate with skin cells.\u201d She points to the vitamin B12 as a tell that the formulation wasn\u2019t chasing a trend: \u201cIt\u2019s not an ingredient I\u2019d expect in a plumping serum, and it suggests real formulation intent.\u201d<\/p>\n
What is especially impressive about the formula, according to Dr. Yoo, is the recombinant human collagen at its core. \u201cKiehl\u2019s is among the first brands to bring this technology to the U.S. market,\u201d she says. \u201cUnlike traditional collagen serums, which use large protein molecules that mostly sit on the skin\u2019s surface, recombinant collagen peptides are smaller and more soluble, so they penetrate better and actually support the skin\u2019s own collagen-producing environment.\u201d She adds that staying power matters as much as the science. \u201cClinically, I look for formulas patients will actually stick with, since collagen support takes months, not days. This serum delivers visible firmness and plumpness without irritation.\u201d<\/p>\n
Dr. Engelman makes a similar point about how the serum fits into a broader GLP-1 skin-care routine. \u201cWhile no topical product can restore the structural volume that\u2019s been lost, I encourage these patients to adopt a collagen-supportive skin-care routine alongside in-office treatments when appropriate,\u201d she says. \u201cThis should be thought of as part of a comprehensive strategy: lifestyle measures that support skin health, daily sunscreen, collagen-supportive skin care, and, when indicated, biostimulatory injectables or energy-based devices to address deeper collagen loss.\u201d<\/p>\n
Power Plump 1CC CollaShot Serum hits the Sephora app July 28 and Kiehls.com August 1.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
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