Its definitely a smart thing to avoid with sensitive skin (and fragrance of any type - natural is just as allergic as synthetic, if not worse!)
Paracetamol poisoning in children and hepatotoxicity
Miremadi F, Ayyash M, Sherkat F, Stojanovska L (2014) Cholesterol reduction mechanisms and fatty acid composition of cellular membranes of probiotic Lactobacilli and Bifidobacteria
H., et al., Alpha-lipoic acid decreases hepatic lipogenesis through adenosine monophosphate-activated protein kinase (AMPK)-dependent and AMPK-independent pathways
Where the dullness is driven by lifestyle and environmental load sun, travel, stress glutathione supports the underlying biology of healthier-looking skin, paired with sun protection and appropriate topical or procedural care