There comes a time when those with reactive and sensitive skin realise something very peculiar. The cleanser that you've been using for months starts to sting your face. The moisturiser that once felt like a soothing embrace now feels unpleasant against your skin. The serum which should help calm your skin down now leaves it feeling warm and tingly. And even the so-called gentle products feel like a cause for suspicion. Ultimately, it all becomes clear: Everything irritates my skin.
But what if there isn’t really anything wrong with your skin?
What if its tolerance has changed?
Skin does not have a fixed capacity for irritation. Its level of sensitivity changes based on the state of the barrier function, inflammation, environmental stress, the frequency of cleaning, the cocktail of products and how much the skin is being asked to exfoliate itself. What once was well tolerated by the healthy and happy skin is no longer enjoyable to use when the skin is compromised.
This means that our approach to skincare on sensitive skin needs to be reconsidered. It is not about determining which ingredient is generally “bad”; rather, it is better to comprehend why the skin suddenly loses tolerance, what triggers it to reach its threshold point, and how formulation plays its role here.
Can your skin actually become less tolerant over time?
It can, and that’s one of the most important aspects to consider when talking about reactive skin.
The stratum corneum is the upper layer of your skin, and its structural organization is involved in the regulation of water transport and permeability, hydration, and the interactions between the substance and skin. Ceramides, cholesterol, fatty acids – all of them help to form this structure.
With the disruption of this barrier, transepidermal water loss increases, as well as the conditions of the skin environment.(1) However, it is not only the lack of moisture that leads to the problems – skin has a highly developed sensory system. It consists of the nerve fibers, which react to chemical, thermal, and mechanical influences, as well as the inflammation.
And here is the explanation why skin can switch from “I can use this comfortably” to “Why does this suddenly burn?” without the change in the composition of the product.
Overexfoliation, excessive washing, low humidity, contact with the environment, or just too much of active ingredients can lead to the reduction of skin tolerance. Same formula comes to different biological environment.
Ingredient is still the same. The skin receiving it is not the same.
Why does everything irritate my skin when none of these products used to?
Irritation is seldom a tale of one product in particular.
Picture your skin having a certain tolerance level. Your cleanser uses up a little bit of that capacity. Your exfoliant uses up a bit more. Your retinoid makes a contribution to the list of demands. There is UV exposure, drying air, sweat, friction, hot water, and frequent cleansing. None of these elements individually cause any immediate response.
However, the cumulative effect counts.
Cumulative irritation has been used to describe this phenomenon. The skin can withstand individual stressors while being overloaded from a combination of them. The item causing irritation may be the last thing pushing the tolerance level.
This explains why switching serums again and again becomes a never-ending activity. In case of cumulative irritation, changing the final product without analyzing the whole regimen does not help very much.
For a person trying to understand how to pick up skincare products for sensitive skin, this is an essential perspective to adopt. Rather than analyzing every single product as safe or dangerous, see how much your skin gets irritated.
Could your entire routine be irritating your skin without any single product being “bad”?
Of course, and that’s where skincare regimens get more complicated than just reading ingredients.
You can have an appropriately formulated cleanser. You can have an appropriately formulated exfoliator. You can have an appropriately formulated retinoid. You can have an appropriately formulated vitamin C serum. None of those statements tell you if your overall regimen is appropriate for you, at that very specific point in time.
The skin sees the regimen as a whole.
Frequency is important. Concentration is important. Contact time is important. The order of the products is important. The state of your skin is important. The amount of time between treatments is even important because it influences the total amount of stimulation received.
That’s why a regimen comprised of a number of appropriately formulated products can become much more irritating than anticipated. Someone isn’t getting irritated from a single problematic product, but rather is just overloading themselves chemically and physically at the moment.
And there’s an important idea lurking behind all of this: irritation debt.
Irritation debt is not a formal dermatological diagnosis, but it’s a useful idea to understand the effects of repeated, low-level irritation. Irritation debt is an effective way to view the idea of constant minor stress. The skin can look great withstanding tough conditions for some time, but after some time it will become uncomfortable and weak. At some point, a regular product starts stinging.
Why can skin burn before it looks irritated?
Since redness is not the only way the skin speaks up to communicate irritation.
The feeling of burning or stinging is a sensation, and it can take place prior to any actual redness, peeling, or swelling occurring. The sensory nerves within the skin react both to chemical and mechanical stimuli, and inflammation can impact the intensity of such sensations.
This is precisely why the concept of “the tingling means the product is working” should be retired.
Sensation is not a measure of effectiveness.
At times, tingling is associated with a positive cosmetic action; at others, it may mean irritation. At other times, it is difficult to distinguish between the two just from the sensation.
In case your products cause burning or irritation especially when the skin is already dry and sensitive, then judging the efficacy of a product based on the intensity of its sensation is not a good way of assessing skincare.
Your skin does not have to be irritated for the ingredient to work.
Does the ingredient matter more, or does the formula?
But while the ingredient makes the difference, the formula dictates what the environment is that the ingredient comes into contact with.
One of the ways in which the advice on skincare based on ingredients becomes deceiving is that two products containing the same active ingredient can still be different. The concentration levels can be different, the pH can be different. The solvents, emulsifiers, delivery mechanisms and accompanying ingredients can all be different. One product can release or deliver an ingredient differently from another.
The skin doesn’t see a “niacinamide” or a “retinol” in isolation. It sees a full formulation of ingredients.
And this is especially true when it comes to selecting a skincare formula for sensitive skin. Rather than wondering whether one specific hero ingredient is good or bad, focus on how the formulation is intended to work.
The formulation of a product is not just the packaging of an active ingredient. It’s the formulation that dictates how the ingredient works on your skin.
That difference can be difficult to spot when skincare marketing makes the whole product about the hero ingredient mentioned in huge letters on the front of the pack.
Could your cleanser be making your serum feel worse?
Probably.
Cleansing is considered to be the most boring stage in skincare because the product itself is subsequently washed off. Cleansing, on a biological level, is a combination of the skin and surfactants, water, oil and mechanical effect.
The surfactants remove the substances from the skin so that they could be washed away. It is important not to irritate the skin too much while providing effective cleansing.
Not only the formula of the cleansing product plays a role, but the way in which it is used as well. Too hot water, lengthy washing process, multiple cleansing procedures and rubbing could change the perception.
This creates an interesting situation. Someone may blame a serum because it stings when applied, without realising that the skin was already more vulnerable after a particularly aggressive cleansing routine.
Thus, in case skin starts being irritated unexpectedly, it is necessary to examine not only the shelf with serums, but also the bathroom sink.
Sometimes problems occur before the treatment product is even opened.
Why does the same product behave differently on different parts of your face?
Because your face isn't one homogenous piece of skin.
Your eyelids have very delicate skin. Your mouth area has constantly moving skin and is regularly exposed to moisture and saliva, food, and other products. The skin folds in the nose area have different moisture levels and friction from other parts of the skin. Cheeks can have an entirely different tolerance than your forehead.
This becomes important because of what you mean when you say, "This product irritates me."
Where?
This can actually be more telling than you think.
If a product feels great on your forehead, but is consistently irritating around your mouth or nose, it may not necessarily mean the entire product is inappropriate for you. It could be due to the micro-environment of the skin.
Sensitive skin is often talked about as if it's a lifelong trait affecting the whole of your face. But your skin's tolerance level can vary not just from one person to another, but even within one face.
Is fragrance really the problem, or is fragrance-free too simple an answer?
It needs to be considered especially when a person experiences irritation multiple times from the use of scented products. Buying fragrance-free skincare products can be one step to eliminating one more irritating/sensitizing factor and make the skincare process simpler for a person with irritated skin.
However, fragrance-free cannot become yet another gimmick in the skincare industry.
First of all, a formula which is fragrance-free can include those ingredients that will be poorly tolerated by a certain person. Simply excluding fragrance from the list of ingredients does not mean that it can become suitable for everyone.
Moreover, there is a difference between “fragrance-free” and “unscented” – the latter term means that there might be some fragrance materials included in the composition despite the lack of scent.
The more rational way would be to think about fragrance-free products as one aspect of the formula and not about a guarantee on the label.
The same goes for “natural”, “clean” and “dermatologist tested” formulas.
Should you actually avoid certain skincare ingredients?
There are certainly ingredients and ingredient categories that may be more problematic for some people, particularly when the skin is already compromised. Strong exfoliating acids, retinoids, essential oils and fragrance can all become relevant considerations depending on the individual and the way a product is formulated and used.
But creating a universal list of skincare ingredients to avoid for sensitive skin misses an important part of the science.
Sensitivity is not a simple yes-or-no property. An ingredient's effect depends on concentration, formulation, frequency, contact time and the condition of the skin. An ingredient tolerated perfectly well by one person can cause irritation or sensitisation in another.
This is why a personal history can be more useful than a universal blacklist. If a particular product repeatedly causes discomfort, record what happened. Was the sensation immediate or delayed? Was it burning, itching or tightness? Where did it occur? What else were you using? Had you recently increased exfoliation or introduced another active?
Patterns give you something to work with. Fear gives you a much longer ingredient list.
What if your skin has not rejected the product, but simply lost its tolerance?
And here the expression “my skin suddenly can't tolerate anything” gets particularly intriguing.
Imagine that you've been using a retinoid without problems for a year. You then start exfoliating more often, there happens a streak of exceptionally dry weather and you start cleansing your face more often. After a couple of weeks, your retinoid starts burning.
It is easy to blame the retinoid. But what the chain shows is quite different. The product is the same. The environment has changed. This does not necessarily mean that all reactions are temporary and irritating products must simply be tolerated. This means that tolerance should be considered dynamic, not static.
The skin adapts to the environment and to the stimuli applied to it.
That is why skin care for highly sensitive skin should be able to change along with the changing state of the skin itself.
How do you choose products when your skin keeps changing its mind?
Perhaps the most logical starting point would be to select products based on their function rather than on their novelty.
The cleanser should cleanse without causing unnecessary irritation to the skin. The moisturizer should help maintain the skin hydrated. The sunscreen should offer reliable protection against ultraviolet rays. Treatment products should serve an understandable purpose.
That sounds almost too simple in an industry built around adding another step. However, simplicity has an advantage over complicated regimes: cause and effect become clearer.
If three products are introduced simultaneously and the skin reacts, there is very little useful information in that reaction. If one product is introduced while everything else remains stable, the skin's response becomes easier to interpret.
This is not an attempt to abandon active products forever. This is an attempt to give each new product enough room to show what it can do.
Could boring skincare actually be the more sophisticated choice?
Complexity is often associated with skincare excellence.
Multiple types of acids. Multiple serums. Multiple application steps. A range of products for different times of the day. A collection of ingredients meant to affect the skin in an increasingly targeted manner.
But formulation sophistication can take on a whole different meaning. It can consist in knowing what not to add. It can be about finding a balance between efficacy and tolerability. It can be about taking into account ingredient interactions rather than increasing the number of ingredients. It can be about creating a texture that will be actually used. It can be about understanding the fact that skin should not be constantly tested.
In reactive skin, tolerability is no boring accessory. It plays a role in whether a product will have any chance to perform in real-life conditions. A product that, in theory, is excellent but cannot be used due to intolerability is not necessarily a better skincare solution than a less complex one that is used regularly.
What is your skin actually trying to tell you?
Perhaps this is not saying that it hates skincare.
Perhaps this is saying that the present combination is too much.
Where everything is irritating, the solution does not lie in immediately purchasing yet another “soothing” bottle. The first step in the more beneficial research lies in determining the change: an additional active, an increase in exfoliation, excessive washing, environmental factors, dryness, friction or the application of too many products all at once.
The aim is not to make your skin afraid of certain ingredients. The aim is to know its limits.
This requires more than an analysis of the hero ingredient. It requires the realization that repetition and cumulative use count. It requires an understanding that burning is not a sign of effectiveness and that fragrance-free does not necessarily equal irritant-free. It requires an acceptance that the same product may have different effects when the state of the skin varies.
And perhaps this is the most valuable approach when trying to select the appropriate products for sensitive skin.
Conclusion
Instead of asking, “Is this ingredient safe?”
Ask yourself, “Is my skin able to tolerate this?”
As skin doesn’t have to pass any tolerance test. It has to follow a regime that is in harmony with its physiology.
And this is the philosophy behind TGHC’s skincare formulations. We create our products keeping in mind that sensitive skin does not need more irritation, more active ingredients or an elongated regime. It needs intelligent formulations that take into consideration skin’s physiology, ingredients that respect skin’s physiology and skin’s capability of handling them. To us, skincare is not about stimulating skin and making it feel the action. It is all about creating formulations that allow skin to do what it naturally knows to do.
