Why skin type is important
Most skincare mistakes are not due to unsuitable products, but to an incorrect identification of skin type
. Treating oily skin as if it were dry—or sensitive skin as if it were normal—leads to imbalances,
breakouts, and premature aging. This guide provides you with the knowledge needed to choose accurately.
The balanced canvas
Genetically balanced and well-regulated, normal skin is the ideal: it features minimal imperfections, fine pores, and a smooth, uniform texture. It does not produce excess oil nor does it lack hydration.
- Well-balanced sebum production
- Barely visible pores
- Smooth and uniform complexion
- Rarely experiences breakouts
- Remains comfortable throughout the day
The thirsty canvas
Dry skin produces less natural oil than necessary, which leads to a weakened lipid barrier. It requires hydration and nourishment, and responds very well to rich, emollient formulas.
- Sensation of tightness, especially after cleansing
- Dull appearance, rough texture, or presence of flaking
- Invisible pores
- Reduced elasticity and greater tendency to show fine lines
- Worsens in cold or dry climates
The luminous canvas
Due to overactive sebaceous glands, oily skin produces an excess of sebum throughout the day. Although it is prone to clogged pores, it also ages more slowly: an advantage worth appreciating.
- Visible shine by midday
- Enlarged or clearly visible pores
- Tendency to develop blackheads and breakouts
- Thick, resilient skin texture
- Makeup base tends not to last long
The double canvas
Combination skin, the most common type worldwide, manifests differently in various areas of the face: it is oilier in the "T-zone" (forehead, nose, and chin), while it tends to be dry or normal on the cheeks.
- T-zone with shine; drier cheeks
- Enlarged pores around the nose
- Occasional appearance of blemishes in the oilier areas
- Feeling of tightness in the cheeks after cleansing
- Requires specific care adapted to each area
The reactive canvas
Sensitive skin is not a type in itself, but a condition that can coexist with any skin type. It is a sign of a weakened skin barrier that reacts excessively to various triggers, whether environmental or topically applied.
- Redness, stinging, or a burning sensation
- Reacts to fragrances, alcohol, or heat
- Prone to rosacea or eczema-like reactions
- Requires minimalist, fragrance-free formulas
- Benefits from ingredients that strengthen the skin barrier
Science beneath the surface
Beyond categories, this is what truly determines your skin's behavior—and how to work with it, instead of against it.
Sebaceous activity
The oil that protects you
Sebum is not your enemy. This natural mixture of lipids—produced by the sebaceous glands and secreted through the hair follicles—constitutes a fundamental part of the acid mantle, the skin’s first line of defense against bacteria, pollution, and water loss.
The problem arises only when its production becomes dysregulated. Hormonal changes (puberty, pregnancy, menopause), a diet rich in refined sugars, stress, and excessive cleansing can trigger overproduction. Conversely, genetics, certain medications, cold climates, and overly aggressive cleansing products—which strip away too many natural oils—cause a decrease in its production.
THE MARIE D'ARGAN PRINCIPLE
"Never assault the skin to achieve balance. Favor the regulation of its sebum through botanical active ingredients that interact with the sebaceous gland itself, instead of resorting to those that simply absorb the excess".
Signs that sebum production is deregulated
- Breakouts that appear cyclically, coinciding with the menstrual cycle or stress spikes
- Skin that becomes oily in summer and dry in winter, regardless of your routine
- Congestion (blackheads, milia) concentrated in specific areas
- A feeling of tightness that appears 30 minutes after facial cleansing
The skin barrier
The invisible armor of your skin
The stratum corneum—the outermost layer of the epidermis—functions like a brick wall. Corneocytes (dead, flattened skin cells) act as the bricks, while the surrounding lipid matrix functions as the mortar. Together, they prevent transepidermal water loss (TEWL) and block external aggressors.
When this barrier is compromised—whether due to excessive exfoliation, the use of harsh surfactants, damage caused by UV radiation, or certain skin conditions—water escapes freely and irritants penetrate easily. The result: sensitivity, dehydration, inflammation, and accelerated aging, regardless of your skin type.
How to identify a damaged skin barrier:
- Products that previously worked for you now cause stinging or redness.
- Persistent dehydration, even when you drink enough water.
- A "raw" feeling on the skin after gentle cleansing.
- Unusual breakouts in areas where you have never had them before.
- Skin that looks dull and lifeless, despite being hydrated.
THE MARIE D'ARGAN PRINCIPLE
"Never assault the skin to achieve balance. Favor the regulation of its sebum through botanical active ingredients that interact with the sebaceous gland itself, rather than resorting to those that simply absorb excess."
Skin through time
Your skin type changes over time.
This is what dermatology confirms, but what beauty marketing often overlooks: your skin type is not something fixed. It changes with age, geographic location, hormonal stages, and the evolution of your lifestyle; sometimes, quite drastically.
The oily skin typical of adolescence often transforms into combination or normal skin by your mid-twenties. Pregnancy hormones can suddenly turn skin that was once normal into dry and reactive skin. Menopause, for its part, often causes significant dryness, as estrogen levels drop and sebum production decreases by up to 60%.
Key life stages that influence skin type:
-
Puberty: Increased androgens activate the sebaceous glands, often leading to oily or acne-prone skin.
-
Twenties and thirties: Sebum production usually normalizes; the most common skin type is combination.
-
Pregnancy: Hormonal fluctuations can cause unpredictable changes in any direction.
-
Perimenopause: Falling estrogen levels lead to dryness, sensitivity, and increased sagging.
- Mature skin: There is a significant reduction in sebum production, the epidermis becomes thinner, and cell turnover slows down.
In conclusion: evaluate your skin type at least once a year, as well as immediately after experiencing significant hormonal changes or after moving to a new place of residence.
Formulated for your type
Each ingredient has a specific language with which it communicates with the skin. Adapting them to your skin type is the foundation of effective skincare.
Argan oil
FOR ALL SKIN TYPES · ESPECIALLY DRY AND NORMAL
Rich in oleic and linoleic acids, argan oil mimics the composition of the skin's natural sebum, nourishing it without clogging pores. Its high content of vitamin E and polyphenols provides antioxidant protection.
Hyaluronic acid
FOR ALL SKIN TYPES · ESPECIALLY DEHYDRATED
A powerful moisturizer capable of retaining up to 1,000 times its weight in water. It acts with various molecular weights to simultaneously hydrate the different layers of the skin.
Niacinamide
OILY · COMBINATION · SENSITIVE
A form of vitamin B3 that regulates sebum production, minimizes the appearance of pores, reduces inflammation, and strengthens the skin barrier; it is versatile and exceptionally well tolerated.
Ceramides
DRY SKIN · SENSITIVE · ALL AGES (35+)
Lipids naturally present in the skin barrier. Providing ceramides repairs and strengthens this barrier, reduces transepidermal water loss (TEWL), and restores the skin's ability to retain moisture.
Retinol
NORMAL · OILY · MATURE SKIN
A vitamin A derivative that accelerates cell turnover, stimulates collagen production, refines pore size, and treats hyperpigmentation. Requires gradual incorporation and should always be used in conjunction with a sunscreen (SPF).
Salicylic acid
OILY · COMBINATION · ACNE-PRONE
A fat-soluble beta-hydroxy acid (BHA), which allows it to penetrate inside the pore and dissolve the obstruction at its source. It has anti-inflammatory and comedolytic properties.
The essential daily routine
Whatever your skin type, a consistent and smart daily ritual is the foundation. The steps remain the same; the formulas change.
Gentle cleanse
Removes sebum and residue accumulated overnight without disrupting the skin barrier. For dry or normal skin, micellar water or a low-foaming cleansing balm is ideal. Oily skin benefits from a gel formula. Avoid hot water.
60 SECONDS
Hydrating toner
When applied to damp skin, toner replenishes hydration and prepares the surface for better absorption of products applied afterward. Look for hydrating ingredients like hyaluronic acid, glycerin, or aloe vera.
APPLY IT AND WAIT 30 SECONDS
Targeted serum
The most concentrated step in your routine. Choose it according to your skin's primary need: radiance, strengthening the skin barrier, sebum regulation, or anti-aging. Apply them from thinnest to thickest: start with the lightest serums.
1–2 MINUTES FOR ABSORPTION
Moisturizer
It retains hydration and forms a protective film over the active ingredients. Gel-cream for oily skin; rich emollient creams for dry skin. Even oily skin needs hydration: dehydration increases sebum production.
LET IT SET FOR 2 MINUTES
Broad-spectrum SPF
The most effective anti-aging measure that exists. Daily use of a sun protection factor (SPF) of at least 30, regardless of the season or skin tone. UV radiation is the main cause of premature aging, the appearance of dark spots, and skin cancer. It is non-negotiable.
LAST STEP; DO NOT RUB
Gentle cleanse
Removes sebum and residue accumulated overnight without disrupting the skin barrier. For dry or normal skin, micellar water or a low-foaming cleansing balm is ideal. Oily skin benefits from a gel formula. Avoid hot water.
60 SECONDS
Hydrating toner
When applied to damp skin, the toner replenishes hydration and prepares the surface for better absorption of the products applied afterward. Look for hydrating ingredients like hyaluronic acid, glycerin, or aloe vera.
APPLY IT AND WAIT 30 SECONDS
Targeted serum
The most concentrated step in your routine. Choose it according to your skin's primary need: radiance, skin barrier reinforcement, sebum regulation, or anti-aging. Apply them from thinnest to thickest density: start with the lightest serums.
1–2 MINUTES FOR ABSORPTION
Moisturizer
It retains moisture and forms a protective film over the active ingredients. Gel-cream for oily skin; rich emollient creams for dry skin. Even oily skin needs hydration: dehydration increases sebum production.
LET IT SET FOR 2 MINUTES
Broad-spectrum FPS
The most effective anti-aging measure that exists. Daily use of a sun protection factor (SPF) of at least 30, regardless of the season or skin tone. UV radiation is the main cause of premature aging, the appearance of dark spots, and skin cancer. It is non-negotiable.
LAST STEP; DO NOT RUB
Myths we must dismantle
"Oily skin does not need moisturizer."
Oiliness and hydration are not the same thing. Skin can be oily and dehydrated at the same time. Skipping the use of a moisturizer actually causes an increase in oil production, as the skin tries to compensate for the dryness it perceives.
All skin types need hydration: what varies is the formula, not the need.
Use a lightweight, non-comedogenic gel moisturizer for oily skin. Hydration and sebum regulation work together—not against each other—when you choose properly formulated products.
"Natural ingredients are always gentle on sensitive skin."
Many potent allergens and irritants come directly from nature: essential oils, certain plant extracts, and even some acids of botanical origin. "Natural" does not equate to hypoallergenic or gentle.
The origin of the ingredients matters less than the science of the formulation.
Oiliness and hydration are not the same thing. Skin can be oily and dehydrated at the same time. Skipping the use of a moisturizer, in fact, causes increased oil production, as the skin tries to compensate for the dryness it perceives.
"If you have dry skin, you just need to drink more water."
Internal hydration has a minimal effect on the outermost layers of the skin. The stratum corneum receives hydration from below (the interior) and from above (topical products). Drinking water supports overall health, but it does not cure clinical skin dryness.
"Sunscreen is only necessary in summer."
UVA radiation—responsible for photoaging and DNA damage—passes through clouds and glass all year round, with the same intensity in winter as in summer. Incidental exposure to UV radiation is the cause of most cumulative sun damage over a lifetime.
Discover your skin type
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of your skin type and routine recommendations.
