elliemz review for Vitamin C Serum

this is a holy grail product. the skin brightening effects are quite noticeable after going through just one bottle, as well as the fading of post-inflammatory hyperpigmentation. i’ve repurchased it several times! the product comes with a dropper, and i apply one drop of it to my skin in the mornings after cleansing. there is no strong smell. the consistency is that of a serum, and it lays sticky on the skin for a few minutes before sinking in completely. i always apply moisturizer after because it can make my skin a bit tight without it. the serum is a yellowy color, and while i’ve heard that this can mean the vitamin c is unstable and no longer effective, i’ve still noticed quite a difference with the product so i wonder if the color is due to another ingredient.