L-Citronellol ((S)-3,7-Dimethyloct-6-en-1-ol) is a natural product with anti-allergic and neuroprotective effects. L-Citronellol inhibits mast cell activation and the release of inflammatory factors by inhibiting the ERK pathway. L-Citronellol inhibits BACE1/PSEN1 and AChE, reduces TNF-alpha expression and lipid peroxidation, demonstrating the potential of multi-target anti-Alzheimers disease (AD)[1][2].