The Good and the Bad: Understanding the Pro’s and Con’s of Bacteria that Live on Our Skin

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The skin microbiome is a complex and diverse ecosystem that includes a variety of bacteria, fungi, and other microorganisms. These microorganisms play a crucial role in keeping our skin healthy and protected.

The Good Guys of the Skin Microbiome

Beneficial bacteria, also known as commensal bacteria, are important components of this ecosystem and play a crucial role in keeping our skin healthy.

Staphylococcus epidermidis and Corynebacterium are two examples of beneficial bacteria commonly found on the skin. They are part of the normal skin flora and help regulate the skin's pH balance by producing lactic acid, which helps to maintain the skin's acidity at a level that is hostile to harmful pathogens.

In addition, these beneficial bacteria help in maintaining the skin hydrated by producing substances that retain moisture and prevent excessive dryness. This process promotes the natural skin barrier function. Another important role of these beneficial bacteria is to inhibit the growth of harmful pathogens, such as bacteria that can cause infections. By doing so, they help to maintain a healthy and balanced skin microbiome, which is essential for preventing skin diseases and promoting skin health.

The Negative Impact of Harmful Microorganisms

While some bacteria are beneficial to our skin, others can cause infections and other skin problems. Staphylococcus aureus is one such bacteria that is commonly found on the skin and in the nasal passages. This bacteria can cause conditions such as impetigo, folliculitis, and abscesses.

Cutibacterium (formerly Propionibacterium acnes) is another type of bacteria that is commonly found on the skin. This bacteria can lead to acne when it grows excessively. Cutibacterium thrives in the oil-rich environment of the skin and produces enzymes that break down sebum into irritating compounds, causing inflammation and other skin problems.

Candida, a type of yeast, is also known to cause skin infections when it grows excessively. This yeast is commonly found on the skin and in moist areas of the body, and can lead to conditions such as intertrigo and cutaneous candidiasis. These infections can cause symptoms such as itching, burning, and redness.

What is the impact of our skin microbiome on skin conditions such as Acne, Eczema, Saboreha and Psoriasis? Join us next week episode to broaden your knowledge and uncover the answer!