I will provide feed back not just to vitamin d serum but to all of this line of skin care. At first, couldn’t tell the difference but as time goes bye I saw how it made my complexion and tone base in my genetic traits. I am somewhat on a dark skin in the summer and tan in the winter. This skin care line kept my true ski tone without brightening it too much.
However, The eye serum , I stop using because it gave my under eye dark color almost look like I have dark circles. I’m not sure if that’s just in the beginning, but I did not take a chance because I’m getting an even tone between my under eye and the rest of my face. I figured I’d share that with you guys I don’t know how is that different to me but thank you.