The Ordinary - Vitamin C Suspension 30% in Silicone - 30mlVitamin C Suspension 30% in Silicone. Want to brighten your skin? and defy signs of ageing? (were talking discolouration, fine lines and dark circles) overnight? You need Vitamin C Suspension 30% in Silicone. In its pure form of L Ascorbic acid, vitamin C is an effective antioxidant that has been shown to visibly brighten skin and reduce signs of ageing when applied topically. This waterless formula provides skin with a very high concentration (30%)