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Studies have demonstrated that 4% niacinamide can significantly reduce melasma severity ( Navarrete-Sols et al., Dermatology Research and Practice, 2011 ), improve moisture retention, and enhance overall texture ( Boo, 2021 )

Or it could be a purified protein, or section of a protein, that they think binds to their protein and are looking to confirm that interaction

Linear regression showed an inverse relationship between UA levels and TAU (OR = 0.610), progressive supranuclear palsy (OR = 0.626), AD (OR = 0.685) and frontotemporal dementia (OR = 0.577)

Oncol Lett 2018;15:16071615

Fungal quorum-sensing molecules and inhibitors with potential antifungal activity: A review