Cyclical shifts in oestrogen, progesterone, and testosterone alter the skin's barrier, hydration, and sebum levels across a 28-day loop. Rather than being a fixed skin type, this is a skin state that changes shape week to week, meaning the right routine on one day may not be the right routine a week later.
At Nourish London, this is supported with a flexible approach, layering barrier-supporting ingredients such as ceramides during drier phases with clarifying, oil-balancing formulas during congested phases, so the skin is met with what it needs at each stage of the cycle.