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Typologie de peau DE(.).

DE(.) Profile, further explanations on this skin type.

Traditionally, we distinguish four major categories of skin: dry skin, combination skin, oily skin, and normal skin, defined according to the activity of the sebaceous glands responsible for sebum production. However, skin is more complex than we think. At Typology, we have studied the subject more closely. Based on a more advanced scientific methodology, we have determined not 4 but 24 different skin typologies, and the DE(.) profile is one of them. Find more information about this skin typology in this article.

More details on the meaning of the initials DE(.)

Skin Aging BEGINNER

Oxidation Factor OVERVIEW

Sebum Production BALANCED (.)

The letter "D" for Beginner regarding skin aging.

The letter (D) indicates the emergence of the first visible signs of aging when the skin is in motion . Fine lines are the first to appear and are the easiest to detect. They are typically located at the outer corner of the eyes. A change in skin texture or a lack of radiance can also be observed. These are generally visible around the age of 25. Indeed, from this age, we see the beginning of a decline of about 1% each year in the production of collagen, one of the structural components of the skin, leading to a disorganization of the skin's connective tissue and a change in skin elasticity. A slowdown in the renewal of epidermal cells has also been observed, gradually leading to a thinning of the skin's barrier function. As a result of this phenomenon, water evaporates more and more: the skin then loses its luminosity and wrinkles become more pronounced. A decrease in the production of hyaluronic acid by an average of 6% per decade adds to this.

The second letter "E" stands for Exposure to oxidation factors.

The "E" indicates that the skin is highly exposed to external aggressions (solar radiation, air pollution, tobacco, stress, thealcohol...), as well as insufficient sun protection habits relative to the phototype and exposure rhythm. These factors promote the production of free radicals, highly unstable and reactive molecules that can have a lasting impact on the skin. However, this action is normal in all living organisms that consume oxygen.

However, in the event of an imbalance between the production of free radicals and the body's natural ability to neutralize them, oxidative stress sets in and skin damage occurs. Indeed, these reactive oxygen species contribute to the degeneration of skin cells, both at the level of the epidermis and the dermis. All vital components of the skin such as collagen, hyaluronic acid, elastin, lipids, and DNA find themselves under attack, thereby causing damage and malfunctions.

This oxidation process can thus affect the skin's structure, leading to premature skin aging or even cancer. Initially superficial wrinkles that gradually deepen, less firm skin, and a duller complexion can start to appear, even before aging. To slow down their action and thus prevent premature skin aging, the daily application of antioxidant-based treatments, in addition to an appropriate sun protection , is recommended.

The point "." for Balanced Sebum Secretion.

The "." indicates a balance in sebum production. Naturally produced by the sebaceous glands, the sebum is a fatty substance that helps the skin protect itself against external aggressions and fight against dryness by being part of the hydrolipidic film. Comfortable and soft to the touch, this skin type has a matte appearance without a shiny effect or "crocodile skin", and its skin texture is regular and uniform with pores tightened. It is naturally well hydrated, protected, and blemishes are rare. However, despite this skin balance, it also requires specific care to maintain its abilities and strengthen its regulation mechanisms.

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