Borghese Power-C Firming and Brightening Serum Capsules, 0.68 oz. What it does: A Vitamin C serum at 20% visibly improves skin firmness and reduces fine lines & wrinkles. Easy-to-use, single-dose capsules. 0.68 oz. *Please Note:  Please refer to the product packaging for the most up-to-date ingredient list.