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The resulting catastrophic energy deficit is a primary physiological driver of post-exertional malaise (PEM) or 'crashes,' where even minor, everyday activities trigger a disproportionate and prolonged exacerbation of profound fatigue, muscle weakness, and cognitive impairment
doi: 10.1038/s41392-020-00216-5 233 TangJRamis-CabrerDCurullVWangXQinLMateu-JimnezMet al
GHK-Cu may support collagen production and balanced inflammatory signaling within the skin
It should not be frozen
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