Dr. Oracle Retinotightening Ampoule

I have been consistently using retinol products, and the one I am currently using is from Dr. Oracle. It is a thin, milky-white essence type, and since it contains retinoid ingredients rather than pure retinol, it seems to be less irritating than other retinol products. I only use it at night, and I've definitely noticed the benefits more clearly when I start using functional products after a long break. I've even been told a few times that my skin is glowing. I took a break during the summer but recently started using it again. I believe retinol is a functional basic skincare product worth using regularly because its effects are at least somewhat visible. I usually buy it when it's on sale, and the price isn't bad either.