what order should I use my products?

[BBboi26]

So, I have Caudalie Vinopure Skin Perfecting Serum and The Ordinary Niacinamide 10% + Zinc 1%. I was using just the Caudalie serum after my toner but I wondered if I could use the The Ordinary Niacinamide serum and then the Caudalie serum. I also have The Inkey List Niacinamide that says I can use before my other serums.

[WinglessOne]

@BBboi26  You can use the niacinamide serum either before or after the Caudalie serum. Niacinamide plays nice with pretty much everything, so there shouldn’t be any ingredient conflicts. I don’t know how thick any of those serums are (I use a different brand’s niacinamide serum), but you could try applying them in order of thinnest to thickest serum.