Guide · Sensitive skin
For years, it put up with everything. Then suddenly your serum stings, your cream leaves your skin feeling tight, and every new product makes things worse. That's no coincidence – and usually it isn't down to the individual product either.
The short answer
When your skin suddenly reacts to products it has tolerated for a long time, it's rarely the individual product – it's the sum of all the stimuli. A weakened skin barrier loses moisture more quickly and lets active ingredients penetrate more deeply. The most reliable way back is a deliberately reduced routine over several weeks.
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Where are you right now
Grundlagen
The top layer of your skin works like a wall: skin cells are the bricks, and lipids such as ceramides are the mortar in between. As long as this mortar is intact, moisture stays in and irritants stay out. That's exactly why most people can tolerate almost anything for years.
This layer doesn't get thinner because of a single event, but through repetition. Surfactants when you cleanse, acids for exfoliating, retinol in the evening, plus dry central-heating air in winter, changes in temperature, less sleep, hormonal changes from your mid-thirties onwards. Each factor on its own is harmless. Together, and over months, they add up.
Once the mortar has become porous, the logic is reversed: moisture is lost more quickly, and ingredients penetrate more deeply than the formulation intended. The vitamin C serum that caused no problems for two years now stings. Not because the serum has changed, but because the layer it's applied to has changed.
The typical reflex is the wrong one: more products to tackle the redness, an extra soothing serum, a mask on top. That increases the number of stimuli at exactly the moment your skin needs fewer of them. The order has to be reversed – first take things away, then observe, then carefully add back.
The plan
Six weeks, four stages. The point isn't going without, it's isolation: as long as five variables are running at the same time, you can't know which one is the problem.
Alles weglassen ausser Reinigung mit lauwarmem Wasser, einem Serum und einer Creme. Keine Säuren, kein Retinol, keine Peelings, keine Masken, keine Tools. Morgens und abends dieselben zwei Schritte, nichts anderes.
Stage 1 of 4 · Days 1–7
The hardest stage, because two weeks without change feel like standing still. But this is exactly where recovery happens. The only addition: sun protection in the morning, because UV exposure is the same kind of stress factor as a harsh active ingredient.
Stage 2 of 4 · Days 8–21
Only once your skin has calmed down: bring back one product, every other day, for at least fourteen days. One product, not two. If you cut corners here, you'll end up with no information again.
Stage 3 of 4 · Days 22–42
The same procedure for the next product. Never two new ones at the same time – not later on either. At this point, many people realise they don't actually miss half of their old routine.
Stage 4 of 4 · from day 43
Serum and cream as the Duo CHF 109.90, separately CHF 119.80 + CHF 3.70 delivery
Wirkstoffe
Low-irritation doesn't mean ineffective. It means a few well-tolerated active ingredients in sensible concentrations, rather than lots of different stimuli side by side.
Supports the skin's natural protective function and contributes to a more even complexion. Considered one of the best-tolerated active ingredients and can easily be used morning and evening.
Ideal for: Haut, die gleichzeitig zu Rötungen und Unreinheiten neigt.
Ceramides are part of the skin's own lipid layer. Used in skincare, they support this layer and help to keep moisture in the skin – the mortar from the image above, topped up from the outside.
Ideal for: Haut, die trotz Creme kurz nach dem Auftragen wieder spannt.
A plant-based active ingredient that is considered much gentler than retinol in use and is usually well tolerated even by sensitive skin. Supports a smoother skin texture, without the typical adjustment period.
Ideal for: alle, die Retinol nicht gut vertragen haben.
Has a soothing effect on how your skin feels and supports its moisture balance. One of the active ingredients that are particularly well suited to a deload phase, because they bring hardly any irritation potential of their own.
Ideal for: skin after a phase of too many active products.
Classification
| What you notice | Common cause | Next step |
|---|---|---|
| Tightness straight after cleansing | Cleansing removes too many of the skin's own lipids | Cleanse more gently, then apply serum straight away to slightly damp skin |
| A familiar serum suddenly stings | The barrier has become more permeable – the product hasn't changed | Pause the product, start stage 1 of the deload |
| Redness that doesn't fade after a few minutes | Several active ingredients are overlapping | Cut back to two steps, add nothing for two weeks |
| Rough, flaky patches despite using cream | Moisture is applied but not retained | A cream with lipids and ceramides, consistently twice a day |
| Sudden blemishes on otherwise dry skin | Skin is reacting to changing products too often | Freeze your routine – nothing new for at least four weeks |
| Reacting to practically every product | The barrier needs time without additional stimuli | See the deload through; if nothing changes, have it checked by a dermatologist |
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Common questions
Because it's not the product that has changed, but the skin barrier it's applied to. If the lipid layer becomes thinner through frequent cleansing, active ingredients, climate or hormonal changes, ingredients penetrate more deeply than intended. The same formulation then feels different.
The first improvements usually show after seven to fourteen days, especially in the feeling of tightness. It generally takes four to six weeks until the barrier feels stable again. The key is not to try anything new during this time.
For the first three weeks, yes – except for cleansing, serum, cream and sun protection. The point isn't going without, it's isolation: only when few variables are running can you tell which product was actually the problem.
Yes – and you should. UV exposure is one of the factors that puts the most strain on the skin. Leaving out sun protection would undermine the purpose of the reduced routine. If your current product triggers reactions, switch to a mineral one without fragrance.
By reintroducing it on its own, every other day, after the rest phase. If stinging, redness or tightness returns within three days, a link is likely. If you introduce two products at the same time, the information is lost.
A short transition phase is possible if your skin was used to lots of changing active ingredients. Keep your routine unchanged during this time and observe your skin daily. If reactions are strong or persistent, pause and have it checked by a doctor rather than adding more products.
Not always, but it's one of the most common triggers for sensitive skin and offers no skincare benefit. With reactive skin, it therefore makes sense to leave it out first – you lose nothing but the scent.
As a daily foundation, yes: a serum for moisture and active ingredients, and a cream that locks both in and protects. In the morning, add sun protection. Everything else is an extra – and only makes sense once your skin is stable again.
Then there's probably more to it than an overloaded routine. Persistent redness, itching or flaking that doesn't respond to a reduced routine should be checked by a dermatologist. In that case, skincare is no substitute for a medical assessment.
The Duo is exactly the foundation the four-stage plan requires: one serum, one cream, the same two steps morning and evening. Fragrance-free, developed and made in Switzerland.
View The Duo – CHF 109.90Separately CHF 119.80 + CHF 3.70 delivery · you save CHF 13.60 · Free delivery · 100-day returns · 4.9 out of 5
