Most patients arrive with a shelf of serums and a skin barrier that cannot hold water for more than a few hours. The products are rarely the problem. The order they are used in usually is.
Hydration is not a single measurement. It is the balance between what the skin holds and what it loses across a day, and that balance is governed almost entirely by the lipid layer at the surface. When that layer is intact, a basic moisturiser performs well. When it is compromised — by over-exfoliation, by retinoid escalation, by a course of resurfacing that was not followed properly — no serum will compensate.
Repair before addition
Our first instruction to almost every new skin patient is subtractive. We remove actives for two to four weeks and use a ceramide-dominant moisturiser twice daily. It is an unglamorous prescription and it is the one that produces the largest change in measured hydration. Only once the barrier holds do we begin adding back, one active at a time, at two-week intervals.
Barrier recovery is measured at rest, under fixed lighting, at the same point in each cycle.
Sequencing around treatment
Around laser or microneedling the same logic applies with tighter margins. Actives stop five days before. Occlusive repair runs for the first seventy-two hours afterwards, then a light ceramide cream until the surface is closed. Retinoids resume at day fourteen, not day seven, whatever the patient has read.
A barrier that has been rushed back to work will look worse at week six than one left alone at week two.
The patients who do best are not the ones with the most sophisticated regimen. They are the ones who accepted a boring four weeks at the start. Hydration that lasts is built in that window, and every treatment we perform afterwards is more predictable because of it.
