Prebiotics

The benefits of prebiotics for balanced and healthy skin

The skin microbiota: an essential ecosystem

The fundamental role of bacteria on the skin

Our skin is naturally home to millions of beneficial microorganisms that form a protective shield. These bacteria produce antimicrobial substances that prevent pathogens from establishing themselves on our epidermis.

The skin microbiota actively participates in strengthening our immune system . Like a microscopic army, it educates our natural defenses and helps maintain an optimal pH for healthy skin.

Skin bacteria also perform an essential metabolic function. They convert sebum and other secretions into beneficial nutrients for the skin, promoting its natural hydration and regeneration.

Nearly a billion different microorganisms live on every square centimeter of skin, creating a unique ecosystem as personal as our fingerprints.

The importance of a balanced microbiota

A harmonious skin microbiota is the key to radiant skin. This perfect symbiosis between different bacterial populations allows for better sebum regulation and enhanced protection against external aggressions.

Research shows that an imbalance in the microbiota can trigger various reactions such as redness, sensitivity, or blemishes. Conversely, a balanced skin flora strengthens the skin's natural barrier and promotes its regeneration.

Dermatologists observe that skin with a stable microbiota is more resilient to environmental factors such as pollution and UV rays. This stability results in a more even complexion and improved skin texture.

Factors that disrupt skin balance

Air pollution and UV rays are the primary aggressors of our bacterial flora. These environmental elements alter the diversity of beneficial microorganisms and weaken the skin's natural defenses.

Excessive use of harsh cleansers or antibacterial solutions alters the skin's natural pH. This chemical imbalance disrupts the composition of protective microbial populations.

Stress, an unbalanced diet, and lack of sleep also affect the stability of this living barrier. A concrete example: during a period of prolonged anxiety, excessive cortisol production disrupts the renewal of beneficial bacteria and promotes the appearance of skin inflammation.

Definition and role of prebiotics in cosmetics

Natural sources of prebiotics

Natural plant fibers are the primary source of prebiotics in cosmetics. Inulin, extracted from chicory root, is distinguished by its ability to nourish good skin bacteria.

Beta-glucans, derived from oats or yeast, represent another major family of prebiotics. These active ingredients strengthen the skin's natural resistance to daily aggressions.

Polyphenols extracted from green tea and grapes also enrich cosmetic formulas with prebiotics. Their antioxidant power enhances their beneficial effects on the skin .

How do you know if you need prebiotics?

Skin that feels tight or uncomfortable is a first warning sign. Diffuse redness on the face, accompanied by dry, rough areas, suggests an imbalance in the skin's microbiota.

Frequent skin reactions to common cosmetic products reveal a weakened skin barrier. The skin then becomes more vulnerable to external aggressions, resulting in a complexion that lacks radiance.

The presence of small recurring imperfections , particularly in the T-zone of the face, indicates an increased need for prebiotics. These symptoms are particularly accentuated after a course of antibiotics or during seasonal changes.