Biology

The white fluid that escapes from spots is a well-known phenomenon, often associated with acne. However, its formation process and biological significance are often less well understood. Let's decipher together the mechanisms that lead to the appearance of pus to better understand what this white fluid represents.

These two proteins are essential for the firmness, elasticity and resilience of the skin. Often confused due to their similar functionalities, they however act differently to maintain the overall health of the skin.

Eczema, allergic rhinitis, asthma, food allergies... all these symptoms can be linked to what is known as an atopic condition. How is atopy defined? When was this disease identified? Let's delve into this.

While it is often underestimated due to the negative image that lipids project in terms of outcome, sebum is nevertheless essential for the health of the skin and hair. But what do we really know about this oily substance? What is it and what is its purpose? Discover everything you need to know about it in this article.

Although the term "T-zone" is often used to characterise combination skin, it nonetheless applies to all skin types in varying proportions. It is generally associated with "shine" and "blackheads". But what exactly lies behind this term? We have delved into the scientific literature to provide you with more insight into this mysterious area.

Skin tone, pigmentation defects (brown spots), tanning... these phenomena result from the activation of a specific machinery responsible for the production of pigments, melanin. In this article, we propose to scrutinise this mechanism in order to better understand it.

Menopause is not pathological. It is a physiological phenomenon that affects all women at a certain age. Besides the cessation of menstruation, 80% of women experience at least one other symptom. Among the changes during menopause, there is notably a modification in the skin's condition. What is the impact of menopause on the skin? Elements of the answer are provided in this article.

With the hormonal changes brought about by menopause, the visible effects on the skin are quite pronounced. The loss of skin elasticity and firmness are among the common consequences. How can one maintain firmer skin during menopause? This article provides some answers.

Significant changes in facial and body hair occur after menopause. These changes can have a substantial negative impact on self-esteem. Indeed, menopause is characterised by clinical signs of moderate hyperandrogenism, such as excessive facial hair growth. In this article, we explain everything about the appearance of unwanted hair during menopause.

The skin is a complex organ made up of different layers: the epidermis, dermis, and hypodermis. It's made up of tiny openings called cutaneous pores, through which sweat and sebum flow. What is the function of pores? Moreover, what are the different types of pores, and why are they essential to the skin? We answer your questions about these little channels, too often demonized.

The skin is among the essential organs that make up the body. It is composed of several internal layers (epidermis, dermis, hypodermis) and an external hydrolipidic film. The latter acts like a barrier that protects the internal tissues and organs from external aggressions. But what is it made of? How do we take care of it daily? Let's focus.

The skin and mucous membranes form a physical barrier that effectively protects the body from external influences. Nevertheless, after a trauma or infection (skin injury, burn, invasion of bacteria, fungi or viruses), foreign substances may penetrate the barrier. In this case, an inflammatory reaction occurs. You can find out what this is here:

Blood circulation facilitates the transportation of oxygen and nutrients to the organs and cells. Microcirculation refers to the interface between the blood and the cells.

Wrinkles, loss of skin elasticity, pigment spots… Skin ageing manifests differently in every individual. While age plays a major role, it is not the only factor. Our lifestyle and our environment also influence the quality of our skin and how it ages. What are the different factors behind skin ageing? Let us explore together the intrinsic and extrinsic origins of cutaneous ageing.

Menopause affects all women between the ages of 45 and 55. It is characterised by the permanent cessation of periods (menstruation). At this stage of life, the skin undergoes numerous changes: wrinkles, pigmentation spots, dryness... How can one take care of their skin to combat these changes? Elements of the answer are provided in this article.

Skin mirrors the passage of time and lifestyle habits. Its needs evolve from adolescence to adulthood, necessitating adjustments to its care routine. To maintain optimal skin health, it is useful to understand the different stages it undergoes. How does skin change over time? Discover more as you continue reading.

Contrary to popular belief, skin ageing is not limited to wrinkles but also affects the skin’s texture, colour and tone. From a loss of elasticity to dehydration, each sign reveals a stage of the ageing process. How can ageing skin be recognised? Explore here the multiple facets of this natural phenomenon.

Invisible yet fundamental, skin pH governs the proper functioning and comfort of the skin. But what do those two letters actually stand for, and how do they concretely influence the skin? Let us explore this cutaneous indicator.

The pH, or potential hydrogen, of the skin, and more specifically of the hydrolipidic film, serves to protect the skin and combat bacterial infections. However, various factors can disrupt this pH, which leads to unfortunate consequences for the skin. Here's an overview of the consequences of a disrupted skin pH.

The stratum corneum is often referred to as the "acid mantle". This term is justified by the acidic pH of the hydrolipidic film, which plays a significant role in antimicrobial defence and the integrity of the stratum corneum. Therefore, a disruption in the skin's pH can lead to numerous discomforts. How can one maintain their skin's pH? This article provides some answers.

While raw fish, cured meats, soft cheese, wine and many other foods and drinks are advised against during pregnancy, restrictions extend beyond diet. The list may also include everyday skincare products. Although skin is the first line of defence against most chemicals, skincare products are designed to penetrate skin layers and can enter the bloodstream, reaching the developing foetus or breast milk. Continue reading for a list of active ingredients to avoid during pregnancy and breastfeeding to reduce exposure and risk.

Nothing is more frustrating than hair that reappears only a few days after a waxing session! Fortunately, there are a few tricks to maximize the time between sessions and slow down hair growth. We'll show you how.

Exposure to the sun is an action full of contradictions. Indeed, it presents increasingly well-identified harmful effects (sunburn, burns, cancer risks...) but also several virtues, detailed in this article.

Because they are not simply there to make our lives difficult, understanding the physiological reasons for the rules: it's important. Let's immediately shed some light on this subject.

Pre-menstrual syndrome, loss of appetite, menstruation, mood swings... from puberty to menopause, women experience the menstrual cycle and its array of disturbances every month, and these are not the only consequences. The culprits? Hormones secreted by the ovaries, adrenal glands, and adipose tissue. Sensitive to these fluctuations, the skin is also affected during the different phases of the cycle. Discover the changes that the skin undergoes at each stage of the menstrual cycle in order to better care for it and live more comfortably with it.