SYNCHRO SKIN gelstick concealer 403 2,5 gr SYNCHRO SKIN gelstick concealer #403 2,5 gr is a long-wear, waterproof concealer that provides full coverage and a natural-looking matte finish. Featuring a unique gel stick formula, this concealer is easy to apply, blends seamlessly, and helps to hide imperfections and dark circles. The formula is enriched with hyaluronic acid to help keep skin hydrated, and it also contains light-diffusing particles to blur the appearance of fine lines and wrinkles. It's available in seven shades, so you can find the perfect match for your skin tone.