The W7 HD Concealer has you covered! The HD Concealer is a super creamy concealer formula that gives you a medium to full coverage upon application. FC1 is a fair-cool tone FN2 is a fair-neutral tone LC3 is a light-cool tone LN4 is a light-neutral tone LW5 is a light-warm tone MN6 is a medium-neutral tone MW7 is a medium-warm tone DN8 is a dark-neutral tone DW9 is a dark-warm tone DDN10 is a deep-dark-neutral tone How to Use Apply the concealer formula to any blemishes, dark circles or other areas you wish to cover. Using your finger, brush or a sponge, blend the formula into the skin for a flawless finish.