Biology

If your skin has been feeling unusually sensitive, dry, or irritated, you should take your time with an assessment of its defensive strength. Barrier shields your skin from the stress of the environment, and at the same time, can bring much trouble when it's compromised. The good news is that damage to this layer of skin is repairable if taking the right approach. So let's see how you can restore this defence system and set it back to a healthy state.

The skin constantly renews itself through the division of epidermal cells. However, as we age, this process becomes less efficient. What is the connection between cellular renewal and skin aging? Read on to discover more about this topic.

The skin acts as a living interface between our body and the environment. It protects, regulates, and constantly communicates with our cells. But do you really know the full extent of its functions? Discover here the various roles of the skin and how it helps maintain the body’s balance.

The skin is far more than a mere covering: it is a complex organ that protects, regulates, and communicates with our environment. Its three layers – epidermis, dermis, and hypodermis – perform complementary and essential functions. How do they interact to maintain the skin’s balance? Continue reading to better understand skin structure.

Each person's skin reacts differently to sun exposure, and these differences are not random. The Fitzpatrick classification groups skin types according to their sensitivity to UV radiation. How was this scale developed, and how is it used today? Discover in this article everything you need to know about the Fitzpatrick classification.

The skin barrier happens to be one of the most interesting and important components of your body. It is often taken for granted until something goes wrong. What is this powerful shield that protects us from the harshness of the outside world while keeping us intact? Let's have a closer look into what makes this barrier so important.

Often associated with sebum production and oily skin issues, sebaceous glands are actually more complex than commonly thought. What are their physiological characteristics? How do they interact with the skin? Let’s explore together the various facets of sebaceous glands.

While sunlight is essential for vitamin D synthesis, it can also damage skin after surgery. What risks arise from sun exposure following an operation? Learn why exposing skin to the sun is not recommended after a surgical procedure.

Despite advances in oncology, some cancers resist chemotherapy, radiotherapy, and immunotherapy. Researchers seek ways to bypass this dead end. A new discovery has emerged: a molecule that triggers an atypical form of cell death, ferroptosis, by exploiting an unexpected iron dependency in cancer cells. What is this treatment strategy and how might it be applied? Let’s explore these questions.

Menopause is an inevitable stage in women’s lives that can be challenging: fatigue, hot flashes, sleep disturbances, increased skin laxity. What if it were possible to delay its onset? One molecule is drawing attention: rapamycin, first studied for its effect on longevity, may also postpone the onset of menopause. Discover the latest scientific developments on this topic below.

The production of collagen, a protein crucial for skin elasticity and firmness, has long been considered primarily linked to the activity of fibroblasts. However, a study recently published in Nature Communications suggests that keratinocytes could play a significant role in collagen synthesis. This raises the following question: should pro-collagen skincare products target keratinocytes instead? Let's explore this question together.

The skin around the eyes is highly sensitive and intensely utilized, making it unlike any other facial area. It possesses several biological characteristics that make it particularly vulnerable to dehydration, skin aging, and external aggressions. To better care for the eye contour, it's crucial to understand what makes it unique. Continue reading to discover in detail the specificities of the eye contour.

The oxidation of fatty acids is a natural phenomenon often overlooked that could potentially impair the skin barrier and exacerbate water loss. How do fatty acids oxidize? Does this process impact skin hydration? Discover all the answers below.

Whether they're caused by pollen, animal fur, or a certain food, allergic reactions across the body can be quite stressful. What should you do when this happens? Here are all our tips.

Food allergies are common, affecting approximately 5% of the global population. These reactions often present themselves through skin conditions and are generally characterized by redness, swelling, and itching. What are the best practices to adopt following a food allergy? Here are some key points.

Following the consumption of a food not tolerated by the immune system, food allergies can cause various symptoms, including skin rashes. How can we explain this phenomenon? Let's explore the underlying biological mechanisms together.

One of the clinical manifestations of a food allergy is the emergence of spots, which can be more or less localized. What do they look like? Discover here what kind of spots can appear as a result of a food allergic reaction.

Food allergies are associated with a wide range of symptoms, which can affect the gastrointestinal and respiratory tracts as well as the skin. How does a food allergy manifest itself on the skin? Explore this question by continuing to read.

When a blemish appears, it can sometimes be challenging to identify its cause and determine if it's of an allergic nature. However, understanding the origin of these lesions is crucial for knowing how to manage them. Here, discover some keys to differentiate allergy pimples from other skin eruptions.

While skin allergies can appear on various parts of the body, it is clear that the neck seems particularly vulnerable to these reactions. How can we explain that this area is so frequently the site of allergies? Discover some elements of the answer in this article.

Itching is one of the most well-known symptoms of skin allergies. But do you know what causes it? Let's explore this question and the biological mechanisms involved together in this article.

Scalp allergies are often due to an unsuitable shampoo or a hair dye that was not well-tolerated. They typically manifest as itching and sometimes scaly patches on the scalp. Several measures can be implemented to alleviate these symptoms and prevent future allergic reactions. Here, we present various solutions to soothe scalp allergies.

Allergic reactions, which are more common on the skin, can also affect the scalp. Most often, they are caused by certain substances found in hair products, such as dyes or shampoos. Discover here what the main symptoms of a scalp allergy are.

Although microscopic, dust mites can cause discomfort and are one of the most common causes of allergies. These tiny creatures, often found in homes, can cause various symptoms, which are easy to confuse with those of pet or pollen allergies. Let's decipher together the characteristic signs of a dust mite allergy.

Generally benign, skin allergies are nonetheless unpleasant and can cause various symptoms. Which ones? Discover here all our advice on how to recognize a skin allergy and how to respond.