Sensitive skin and skin allergies: how to choose a truly hypoallergenic cleanser
From contact dermatitis to atopic skin: a documented guide to safe cleansing, with the philosophy that changes everything.
In this article
- Skin allergies in Italy: the real numbers
- How to tell if your cleanser is irritating your skin
- Hidden allergens in everyday cleansers
- Why Marseille soap is different
- Not all Marseille soaps are truly equal
- Rampal Latour: from Haute Provence, uncompromising
- Solid or liquid? How to choose
- The guiding principle: start neutral
- Minimal routine for very sensitive skin
- What those who have tried it tell us
- Hypoallergenic cleansing products
- Frequently asked questions
Skin allergies in Italy: the real numbers
This is not a niche issue. Skin allergies affect a significant portion of the Italian population, and available data — collected by the Istituto Superiore di Sanità, the EAACI (European Academy of Allergology), and the SIDeMaST (Italian Society of Dermatology) — paint a clear picture.
Atopic dermatitis, contact dermatitis, urticaria, mild psoriasis: these are different conditions, but with a common root — skin that reacts to chemical stimuli that most people don't even notice. Among these stimuli, body and hand cleansers play a primary role, as they come into contact with the skin multiple times a day, every day.
How to tell if your cleanser is irritating your skin
Often the connection between cleanser and skin reaction is not immediate. Symptoms appear gradually, normalize, and are attributed to other factors. Yet there are recognizable signs that indicate a possible intolerance to the product used daily.
- Skin feeling tight or "prickly" immediately after washing, even with lukewarm water
- Recurrent chapped hands, regardless of the season
- Localized itching after showering, especially on hands, forearms, or face
- Redness appearing in the hours following washing
- Need to apply moisturizer immediately after every wash
- Worsening of symptoms with fragranced or colored cleansers
- Improvement during periods when simpler products are used (e.g., while traveling)
If you recognize three or more of these signs, it's very likely that the problem isn't your skin — it's the product you're using. The first step isn't to add a moisturizer: it's to change your cleanser.
Hidden allergens in everyday cleansers
Reading the INCI of a common shower gel or liquid soap from a large supermarket can be revealing. Dozens of ingredients, many of which serve purely aesthetic functions — to create lather, scent, color, thicken — without any real benefit to the skin. In fact, often with negative effects for those with a compromised skin barrier.
The most frequent cosmetic allergens in skin reactions, according to SIDeMaST: synthetic perfumes and fragrance mixtures, preservatives like parabens and formaldehyde, aggressive surfactants — particularly sodium lauryl sulfate (SLS) — and artificial colorants. All ingredients present in most liquid detergents found in supermarkets.
Sodium lauryl sulfate is the most studied case: highly effective at producing lather, it alters the skin's hydrolipidic film by removing the natural lipids that protect it. For healthy skin, the effect is transient. For already inflamed or atopic skin, it can trigger or worsen reactions.
Synthetic fragrances, in turn, are among the most frequent causes of allergic contact dermatitis. The paradox is that they are added precisely to make the product seem "fresh" and "natural," while for many people they represent the main source of irritation.
Why Marseille soap is different
Authentic Marseille soap has a radically different composition from modern detergents. It originates from a saponification process — the chemical reaction between a vegetable oil (traditionally olive oil) and an alkaline base — which produces a natural, biodegradable cleaning substance, free of additives.
A soap without fragrance and without SLS: why it makes all the difference
No perfume. No dyes. No preservatives. No SLS. The ingredient list is so short it almost seems suspicious to those accustomed to INCI lists of twenty or thirty items. Yet it is precisely this absence that makes it safe for those with reactive skin: a fragrance-free soap eliminates the most frequent cause of contact dermatitis, and an SLS-free soap preserves the hydrolipidic film that protects the skin barrier.
Many people only realize how aggressive their previous cleanser was when they finally stop using it.
| Feature | Industrial detergent | Authentic Marseille soap |
|---|---|---|
| Surfactants | SLS, SLES, synthetic surfactants | Natural soap from saponification |
| Fragrances | Often present (synthetic or mixtures) | Absent in the neutral version |
| Preservatives | Parabens, phenoxyethanol, formaldehyde | Not necessary in the solid formula |
| INCI Ingredients | 15–30+ items | 4–6 items |
| Cosmetic allergens | Frequently present | Absent in the hypoallergenic version |
| Biodegradability | Limited | Complete |
Not all Marseille soaps are truly equal
The name "Marseille soap" is not protected like a PDO. This has allowed the proliferation of products that use the name — and often also Provençal images, natural colors, and references to craftsmanship — without respecting the traditional formula.
Greenwashing signs to recognize
- Presence of mineral oils or palm oil instead of olive oil
- Added fragrances, even if defined as "natural" or "essential"
- Artificial colorants or vibrant colors not justified by the formula
- INCI with 15+ ingredients in a product that calls itself "pure"
- Olive oil percentage not declared or less than 72%
- Labels with claims like "tradition-inspired" instead of verifiable certifications
An authentic Marseille soap has few ingredients, all easily readable. It doesn't need perfumes to smell clean, nor colorants to look natural. The simplicity of the formula is its guarantee — not a limitation.
Before buying any product labeled "Marseille," check the INCI. If you see perfumes (even natural), colorants, or a long list of unfamiliar ingredients, it's not the right product for sensitive skin.
Rampal Latour: from Haute Provence, uncompromising
I discovered Rampal Latour during a trip to Provence. I wasn't looking for soap — I was looking for a hypoallergenic base to work with my essential oils: something so neutral and pure that it wouldn't interfere, something that could work even for the most sensitive among my customers.
I tried the liquid soap. The texture, the simplicity, the skin's response. I immediately understood that such quality deserved to be brought to Italy. I first introduced the liquid, then the solid, then other products from the hypoallergenic line. Not to complete a catalog — but because it was right to share them.
— Lorenza Poletto, EUODIA founderRampal Latour is one of the few French houses that produces Marseille soap respecting the historical recipe, in the Haute Provence area. Their formula contains at least 72% olive oil, follows the traditional saponification process, and contains no fragrances, colorants, or animal-derived ingredients.
Haute Provence is not just a geographical origin — it is a guarantee of traceability. The vegetable oils come from controlled cultivations, and the production process excludes any unnecessary additions. It is the kind of transparency that those with sensitive skin quickly learn to recognize and appreciate.
We chose Rampal Latour for EUODIA because their formulation philosophy reflects the same principle we apply to essential oils: nothing superfluous, purity of ingredients, respect for those who use the product.
Solid or liquid? How to choose
Both Rampal Latour formats available on EUODIA are neutral, hypoallergenic, and fragrance-free. The choice depends on usage habits and your skin's specific sensitivity.
| Aspect | Solid soap | Liquid soap |
|---|---|---|
| Formula | 72%+ olive oil, concentrated formula | Neutral, hypoallergenic, fragrance-free |
| Preservatives | Not necessary (dry formula) | Formula optimized for stability |
| Ideal use | Hands, body, face — daily use | Hands, frequent washing |
| Practicality | Zero plastic, long-lasting | More convenient near the sink |
| For multiple allergies | Recommended first choice | Excellent alternative, neutral formula |
Practical tip: If you don't know where to start and have a history of multiple reactions, begin with the solid form. It's the most essential formula — few ingredients, no additions, no variables. After a few weeks of use, you'll be able to observe how your skin responds with much greater clarity.
"Start neutral. Listen to your skin. Add only what it needs."The EUODIA philosophy underlying every cleansing choice
This principle applies to everyone, but for those with sensitive skin or multiple allergies, it becomes a concrete guide. The first step is not to find the best product — it's to remove background noise. Go back to basics. Eliminate everything unnecessary and observe the skin without interference.
Only by starting from a neutral baseline can you understand what truly works for you. Then add — gradually and consciously — a vegetable oil, a soothing butter, possibly an essential oil. But only after the skin has had time to respond.
Important note for those who are very sensitive: essential oils, although natural, are concentrated substances. Some allergic individuals may react even to natural components of perfumes, such as linalool present in lavender. If you are among those who react to many products, start with pure soap — with no additions — and introduce any other substance only after verifying individual tolerance.
Minimal routine for very sensitive skin
An effective routine for sensitive skin is not necessarily rich — it is selective. Fewer products, better chosen. Each step has a precise purpose and is not added before the previous one is consolidated.
- Cleansers with fragrance, even "natural" or "lavender"
- Products with more than 10 ingredients in the INCI
- Physical or chemical exfoliants
- Changing multiple products simultaneously (impossible to isolate the cause)
- Water that is too hot during washing
What those who have tried it tell us
The most valuable words don't come from us. This testimonial, recently received, describes exactly the kind of experience for which we chose these products.
"I'm allergic to so many products — I've always had reactions to almost everything I've tried. With Rampal Latour Marseille soap, I finally found something that works for me. No itching, no redness. I didn't think it was possible to get through the day without discomfort."EUODIA Customer, with multiple skin allergies
This testimonial summarizes the value of a minimalist formula better than any technical data sheet: it's not what's there that makes the difference — it's what's not there.
Hypoallergenic Cleansing Products
A three-level offering, because every skin is different and personalization is not an option — it's the starting point.
Most Essential Formula
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Frequently Asked Questions
Is Marseille soap suitable for allergic skin?
How do I know if my cleanser is irritating my skin?
What is the difference between Rampal Latour solid and liquid soap?
Can I use essential oils if I have allergic skin?
What are the most common cosmetic allergens?
How often can I use Marseille soap?
Why look for a fragrance-free and SLS-free soap?
Lorenza Poletto — EUODIA Founder
Trained in aromatherapy with Luca Fortuna and with twenty years of background in product management, Lorenza founded EUODIA around a simple principle: every ingredient must have a reason to be present. Over time, many people with sensitive skin have written to EUODIA after developing reactions to common cleansers — seeking truly safe alternatives. It is from these conversations, as well as from research, that the selection of Rampal Latour soaps was born: products chosen because they work, not because they market well.
The information contained in this article is for informational purposes only and does not replace the advice of a doctor or dermatologist. In case of diagnosed skin conditions or confirmed allergies, it is always recommended to consult a specialist before changing your cleansing routine.