SYNCHRO SKIN gelstick concealer 203 2,5 gr SYNCHRO SKIN gelstick concealer #203 2,5 gr is a creamy, lightweight and buildable concealer that helps to cover up blemishes, dark circles and other imperfections for a perfect, natural finish. The gelstick formula is easy to apply and blend and provides a natural, crease-free coverage. It also contains skin-loving ingredients that help to nourish and hydrate the skin for a healthy and glowing complexion.