My very first medical grade skincare purchase. I tried every Vit C on the block and my skin hated them all UNTIL this baby. Very pricey but has done a lot of great things for my skin barrier. I've seen less breakouts, lessened redness, smoothed wrinkles/lines. On sale for BFCM, so snagging while I can! LTKCyberWeek LTKbeauty