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The most exciting frontier may not be choosing between these categories but understanding how they might complement each other across different phases of skin health

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Blood pressure reactivity to stress (cold pressor test) was significantly attenuated in the combination group compared to both placebo and L-citrulline alone

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Marosi M, Rkos G, Robotka H, Nmeth H, Sas K, Kis Z, Farkas T, Lr G, Vcsei L, Toldi J (2006) Hippocampal (CA1) activities in Wistar rats from different vendors: Fundamental differences in acute ischemia