@jjstiktokreviews: I wish I started retinol earlier in my early 20s, but here I am in my 30s and finally using retinol regularly. My pick? This @numbuzin No.3 Retinol Serum and yes, it is blue 💙 This is a 3-in-1 formula with Retinol, Copper Peptides and Niacinamide to tackle multiple skin issues. It is gentle with a lightweight consistency that absorbs quickly to deliver results. We're talking smoother, brighter and bouncier skin in just two weeks! So what are you waiting for? *Gifted for review #numbuzin #numbuzinsquad #numbuzinserum #no3retinolserum #bluebioretinol #fixwithblue #retinolserum #retinol #pores #skintexture #kbeauty