OUR ESSENTIAL OILS
COSMETIC EXPERTISE, VISIBLE EFFECTIVENESS AND SKIN SAFETY
What is an essential oil in cosmetics?
An essential oil is the volatile essence of a plant, obtained by steam distillation or cold pressing for citrus fruits.
It contains 50 to over 150 natural active molecules , each with specific biological properties: antioxidant, soothing, purifying, regenerating, or microcirculation-stimulating. In cosmetics, this molecular richness allows for a comprehensive action , both on the skin and on the biological mechanisms that regulate its balance.
It is this natural complexity that distinguishes an essential oil from an isolated active ingredient, which is generally limited to a single targeted function.
Why does Decléor use essential oils in its facial care products?
They are at the heart of our formulas because they offer:
- visible effectiveness , thanks to their natural affinity with the skin,
- targeted action , tailored to each skin imbalance,
- an active sensory dimension , via olfaction, which positively influences the emotional state.
At Decléor, essential oils are never an accessory.
They are the driving force behind the overall effectiveness of care .
Skin safety: rigorous cosmetic control
Essential oils are powerful natural concentrates. Their safety rests on three inseparable pillars:
- the botanical choice ,
- the precise dosage ,
- their integration into a tested cosmetic formula .
At Decléor:
- Essential oils are never applied undiluted .
- Concentrations are strictly controlled .
- Each product is dermatologically tested , including on sensitive skin.
This approach makes it possible to combine performance and high skin tolerance .
Chemotype: the key to effectiveness and consistency
Two plants of the same species can produce very different essential oils depending on:
- the climate,
- the ground,
- altitude,
- the harvest period.
The chemotype corresponds to the biochemical identity card of an essential oil.
At Decléor:
- Each oil is chemically analyzed .
- Its chemotype is identified and controlled .
- Its composition is reproducible from one batch to another .
Chemotyping is an essential condition for safety, efficacy and consistency of results .
Botanical selection and harvesting at peak bioactivity
We select plants grown in their original terroir , where their biochemical profile is optimal.
Harvesting takes place at the precise moment when the concentration of active molecules is at its maximum , according to:
- the season,
- the flowering cycle,
- sometimes even the time of day.
Extraction: science at the service of purity
An essential oil is a fragile molecular concentrate . Its quality depends directly on its extraction method.
Steam distillation
- gentle method,
- respects heat-sensitive molecules,
- allows for a full active spectrum.
Cold expression (citrus fruits)
- preserves the most delicate aromatic compounds,
- retains its soothing and energizing properties.
Each batch is inspected by gas chromatography coupled with mass spectrometry (GC-MS) , guaranteeing:
- the identity of the oil,
- its purity,
- the absence of contaminants (pesticides, heavy metals, uncontrolled allergens).
Preservation and stability of essential oils
Essential oils are natural substances that are sensitive to air, light, and heat.
Improper storage can lead to progressive oxidation , which may alter their properties.
At Decléor, the stability of essential oils is ensured by:
- protective packaging that limits exposure to air and light,
- suitable locking systems ,
- stability tests on the finished formulas.
Decléor skincare products are designed to preserve the quality, safety and effectiveness of essential oils throughout their use .
Essential oils and cosmetic regulations
The use of essential oils in cosmetics is strictly regulated by European regulations, in particular Regulation (EC) No 1223/2009 on cosmetic products.
At Decléor, each formula is developed in compliance with this demanding regulatory framework, which requires:
- compliance with the maximum permitted concentrations for each essential oil and each molecule,
- taking into account the specific restrictions related to certain components naturally present in essential oils,
- a comprehensive safety assessment of the finished product before it is placed on the market,
- strict obligations of information and transparency for the consumer.
The essential oils used in Decléor skincare products meet high cosmetic, dermatological and regulatory requirements, guaranteeing safe and controlled daily use.
Essential oils and endocrine disruptors
The issue of endocrine disruptors is currently the subject of many questions in cosmetics.
To date, essential oils are not classified as endocrine disruptors under European regulations . As with any cosmetic ingredient, risk assessment is based on several criteria: the nature of the molecules, their concentration, the route of exposure, and the frequency of use.
At Decléor:
- The essential oils are rigorously selected .
- Their dosage is strictly controlled .
- Each formula undergoes a full safety assessment before being placed on the market, in accordance with the European Cosmetics Regulation.
This approach ensures safe and controlled use, without exposure to a proven endocrine risk under normal conditions of cosmetic use.
A natural affinity with the skin
Thanks to their fine and lipophilic molecular structure , essential oils have excellent skin affinity.
They act in depth and simultaneously target several biological mechanisms, which explains their overall effectiveness .
This powerful action requires absolute control of the dosage , which is at the heart of Decléor's expertise.
A functional olfactory signature
Decléor skincare products do not contain any synthetic perfumes .
Their signature scent comes exclusively from essential oils.
Each scent is designed to:
- to soothe,
- stimulate,
- refocus.
This is the principle of aromachology , which acts on both the emotional state and the quality of the skin.
Traditional aromatherapy vs. Decléor expert cosmetics
| Traditional Aromatherapy | Decléor Expert Cosmetics | |
|---|---|---|
| How to use | Essential oils are often used pure or diluted occasionally. | Essential oils incorporated into cosmetic formulas |
| Dosage | Variable, depends on usage and practice | Precise, controlled and reproducible |
| Tests | No regulatory obligation | Dermatological tests on the finished product |
| Security | Depends on the user and the context | Safety assessed and validated before being placed on the market |
| Objective | overall well-being | Visible skin efficacy and optimal tolerance |
Essential oils and cosmetic regulations
The use of essential oils in cosmetics is strictly regulated by European regulations, in particular Regulation (EC) No 1223/2009 on cosmetic products.
At Decléor, each formula is developed in compliance with this demanding regulatory framework, which requires:
- compliance with the maximum permitted concentrations for each essential oil and each molecule,
- taking into account the specific restrictions related to certain components naturally present in essential oils,
- a comprehensive safety assessment of the finished product before it is placed on the market,
- strict obligations of information and transparency for the consumer.
The essential oils used in Decléor skincare products meet high cosmetic, dermatological and regulatory requirements, guaranteeing safe and controlled daily use.
Frequently asked questions about essential oils in cosmetics
Used undiluted or in incorrect doses, some essential oils can indeed be irritating.
In cosmetics, everything depends on the formulation .
At Decléor, essential oils are never applied undiluted. They are selected for their skin compatibility, precisely dosed and incorporated into dermatologically tested formulas, including those for sensitive skin.
The result: visible efficiency, without compromising on safety.
Yes, when they are correctly selected and formulated .
Decléor prioritizes essential oils known for their good skin tolerance and excludes those with a potentially irritating profile. Concentrations are adjusted to respect the skin's balance and strengthen the skin barrier , rather than weaken it.
That is why some Decléor ranges are perfectly suited to sensitive or reactive skin .
As with any cosmetic product, an individual reaction is always possible, even with a well-tolerated formula.
If you experience any discomfort or skin reaction, it is recommended to:
- Stop using the product immediately .
- rinse the skin with clean water.
- Contact Decléor customer service for personalized support.
Decléor applies a strict cosmetovigilance process , in accordance with European regulations.
Some essential oils, particularly certain citrus oils obtained by cold pressing, can be photosensitizing when misused.
At Decléor:
- We use non-photosensitizing distilled essential oils.
- or concentrations strictly compliant with European regulations,
- Each formula is tested for normal cosmetic use , without risk of photosensitivity.
Allergens such as limonene, linalool or geraniol are components naturally present in some essential oils .
European regulations require their inclusion in the INCI list above very specific thresholds , in order to guarantee transparent information to the consumer.
At Decléor, these components:
- are of natural origin ,
- are present at strictly controlled concentrations ,
- and are subject to dermatological tolerance tests on the finished product.
Their presence does not signify a systematic risk, but an obligation of regulatory transparency .
Yes, and that's precisely what makes them effective.
Thanks to their fine, lipophilic molecular structure , essential oils easily penetrate the skin barrier and act deeply. They target several biological mechanisms simultaneously, which explains their overall effectiveness.
This ability to penetrate also explains why they are dosed with extreme precision at Decléor.
An isolated active ingredient generally acts on a single targeted mechanism .
An essential oil, on the other hand, acts through natural synergy , thanks to the richness of its molecular composition.
This allows:
- a more comprehensive action,
- more comprehensive results,
- better affinity with the skin.
At Decléor, essential oils act as true biological conductors at the heart of the formulas.
Two plants of the same species can produce very different essential oils depending on their origin, climate or harvest time.
The chemotype corresponds to the biochemical identity card of an essential oil.
At Decléor, each oil is analyzed to guarantee:
- its exact composition,
- its reproducibility,
- its consistent cosmetic effectiveness.
Chemotype is an essential condition for safety and performance.
Some essential oils are not recommended during pregnancy, especially during the first trimester.
As a precautionary measure, Decléor recommends avoiding products containing essential oils during the first three months of pregnancy , unless advised by a doctor.
After this period, certain treatments can be used depending on the formula and individual tolerance.
As a precautionary measure, certain situations require special attention:
Pregnancy, breastfeeding, known allergies, fragile or damaged skin.
At Decléor, the products are formulated for normal cosmetic use in adults .
In case of doubt or specific situation, it is recommended to seek advice from a healthcare professional before use.
Decléor skincare products contain no synthetic fragrances . Their signature scent comes exclusively from essential oils.
Each scent has a specific function: to soothe, stimulate, or refocus.
This is the principle of aromachology , which acts both on the emotional state and, indirectly, on the quality of the skin.
The scent is not a side effect: it is an integral part of the effectiveness of the treatment .
Essential oil treatments can be integrated into a routine containing powerful active ingredients such as retinol or AHAs/BHAs, provided that the skin's balance is respected .
It is recommended to:
- introduce the products gradually ,
- Avoid combining these products on already irritated skin.
- Alternate uses according to skin tolerance.
Listening to your skin and/or seeking advice from your doctor remains essential to fully benefit from the advantages of each active ingredient.
In summary
At Decléor, the essential oils are:
- selected with extreme botanical precision ,
- extracted according to rigorous quality standards ,
- analyzed, dosed and formulated for maximum safety ,
- integrated into effective, sensorial and perfectly tolerated skincare.
This is not aromatherapy.
It is an expert cosmetics company that has mastered the art of blending essential oils .
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