Brand new and still in original sealed packaging. Only selling because I accidentally purchased the wrong SkinBetter Science product. 1.7 fl oz / 50 ml. Originally priced at $200 and over. SkinBetter AlphaRet Clearing Serum is a uniquely formulated retinoid-based serum designed for those who wish to maintain a youthful-looking complexion and clarify the appearance of oilier, blemish-prone skin. May improve the appearance of skin clarity, pores, and overall tone. This serum is formulated with salicylic acid, a beta hydroxy acid (BHA), and additional pore-cleansing, hydrating, and soothing ingredients, to rejuvenate and clarify the appearance of oilier, blemish-prone skin.