Helena Falholt Elvebakken, Ida Blomquist Christensen, Charlotte Vedel, Søren Kjærulff

A proof of concept: Clinical anti‐aging efficacy and safety of Lactiplantibacillus plantarumLB244R® applied topically in a double‐blinded placebo‐controlled study

  • Dermatology

AbstractBackgroundWith the increasing age of the westernized population, there is also increasing economic and aesthetic interest in reducing the signs of skin aging. Additionally, the physical aspect of aging can be displeasing and have detrimental effects psychologically in individuals. Probiotics have shown potential as anti‐aging agents, albeit proper studies are needed to confirm their potential.AimsProving that Lactiplantibacillus plantarum LB244R® could alleviate aging signs relative to its placebo vehicle.Patients/MethodsIn total, 46 subjects were randomly assigned either the ointment with live bacteria, L. plantarum LB244R® or its vehicle ointment, and had to use the assigned ointment twice daily for 56 days. On Day 0, Day 28, and Day 56 subepidermal low echogenic band (SLEB) thickness, dermal density, skin firmness and elasticity, skin hydration, transepidermal water loss (TEWL), skin pH, collagen fiber visualization using confocal microscopy, Crow's feet, spot score, skin smoothness, and complexion radiance were assessed by dermatologists.ResultsAll parameters except TEWL improved relative to their baseline (D0) for the active group. L. plantarum LB244R® improved SLEB thickness, dermal density, skin elasticity, skin hydration, and Crow's feet wrinkle score relative to the placebo vehicle ointment.ConclusionThe study demonstrates an anti‐aging effect of L. plantarum LB244R® for topical skin use in the first double‐blinded, vehicle‐ointment placebo‐controlled clinical study.

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