Most people think of winter as the hard season for skin. Dry heat, low humidity, wind. And yes, all of that is real. But in my experience — and in what I hear from customers — the transition out of winter is often harder than winter itself.
Here's why that makes sense once you understand what skin is actually doing.
Skin adapts, but it lags
Your skin is constantly adjusting to its environment. Sebum production, cell turnover rate, barrier thickness — all of these shift in response to temperature, humidity, UV exposure, and light. But these adaptations aren't instantaneous. They happen over weeks, sometimes longer.
By late February and into March, your skin has fully optimized for winter conditions: it's been running in low-light, low-humidity, high-heating mode for months. Then the environment starts changing. Days get longer. Light intensity increases. Temperature swings widen — cold at night, warmer during the day. But your skin's adaptation is still playing catch-up. You're getting the stress of new conditions before you get any of the relief.
That's the transition problem. It's not winter, and it's not spring. It's the biological awkward middle.
Why early Spring can feel worse than January
In January, conditions are harsh but stable. Your skin has settled into whatever coping strategy it's developed — more oil, less turnover, thicker barrier. It's not thriving, but it's calibrated.
Early Spring destabilizes that calibration without yet offering the humidity and warmth that would let the barrier recover and rebuild. UV is increasing faster than most people realize — late March and April UV index in many northern cities is meaningfully higher than December — which means skin is being asked to respond to light load it hasn't seen in months, while still dealing with dry air and temperature volatility.
The result is often a flare that feels random. Skin that was behaving reasonably in February suddenly looks dull, feels reactive, breaks out, or gets dry in places it wasn't dry before. This isn't a product failure or a diet change. It's a timing issue.
The histamine piece
One thing worth mentioning: skin reactivity in early spring often has an internal component that gets missed. Histamine clearance tends to be lower coming out of winter — lower light exposure affects the enzymes involved in histamine metabolism, and a winter of heavier food, indoor air, and disrupted sleep doesn't help. So when the environmental shift happens, the threshold for reactivity is already lower than it was in September. Skin that looked fine in the fall can look inflamed in March with no obvious external cause.
I think about this every year when customers write in around this time with some version of "my skin was fine and now suddenly it's not." The answer is almost always the same: it's the transition, not a new problem.
What this actually means for your routine
The instinct when skin starts acting up is to change things — new products, new routine, a "spring reset." I'd push back on that, at least initially. If your routine was working in January, it probably still works. What's changed is the environment, not the product. Adding new variables when your skin is already recalibrating makes it harder to read what's happening.
What tends to help more is consistency and restraint. Keep the routine simple. Be slower with exfoliation — skin that's recalibrating is more sensitive, and mechanical or chemical friction that felt fine in December can suddenly cause irritation in April. If you're going to add anything, lean toward barrier support: something occlusive that can help slow transepidermal water loss while the barrier catches up with the season.
FATSKN Spruce Salve is what I reach for during transition months. It's not treating a problem so much as giving the barrier something to work with while conditions shift. It demands less of the body than Copper does, and I do like a little scent now and then.
The short version
Your skin isn't broken. It's behind. Give it a few weeks, keep the routine stable, and resist the urge to overhaul. Transitional flares almost always settle once the environment does.
Get out and start working on that base tan. You'll have people asking you if you've been on vacation by May. It's fantastic.
xo Caitlin