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Epithelia Under Attack: The Skin, Gut, and Respiratory Barriers

The Dermatology Digest

By Krishna Patel and Peter Lio, MD Introduction The epithelial barrier is the first line of physical, chemical, and immunological defense against allergens, irritants, pathogens, and other environmental factors. Defects in the stratum corneum allow for foreign antigens, irritants, and pathogens to enter the epidermis. 2014.08.005.

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Bakuchiol – Vegan Retinol – What is all the hype about?

First Derm

If you could have a product that offered all the anti-aging benefits of retinol, without the irritant potential, wouldn’t you want to try it as well? Bakuchiol is a new, vegan product on the market and has been talked about a lot over the past few years. So, what is Bakuchiol?

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What’s Under That Beard? 8 Beard-Related Skin Conditions

First Derm

Challenges with Beard Care: Irritation from Shaving and Products : Shaving and certain beard products can aggravate psoriasis, intensifying symptoms. [4] It’s caused by Malassezia, a fungus that feeds on the sebum on your skin, leading to irritation and inflammation, particularly in areas with many sebaceous glands like the beard. [5]

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Is Your Shampoo Making You Sick?

Aesthetics Advisor

4 Three years later the company finally agreed to phase them out and by 2014 the chemicals were removed from their baby shampoo. 13 It is also a skin and eye irritant and a common ingredient in shampoos. 8 But, this isn't just a problem along the East Coast as the chemical has been detected in drinking water across the U.S.,

Safety 36
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Skin Fissures and Split Fingertips

First Derm

Skin fissures on the leg, characterized by cracks in the skin accompanied by dry, discolored, and irritated surrounding tissue. The latter is a bit worrying, not only because of the pain and bleeding it might cause, but also because of the risk of various irritants and germs entering your body through the damaged skin. Pierzak, M.,

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Melasma (Chloasma)

First Derm

You should also stop using skin care products that irritate the skin, as it may worsen melasma. If self-treatment does not improve your situation or causes skin irritation and darkening, you should seek help from a dermatologist. Should I seek medical care? JAMA Dermatology , 151 (7), 791–792. [link] Duteil, L., Cardot-Leccia, N.,

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Damaged Skin Barrier? What to Know and How to Protect It

First Derm

Increased Sensitivity: A weakened barrier can make the skin more prone to irritation, from skincare products, environmental factors and even water. Moisturize Liberally: Use a rich, hypoallergenic moisturizer to lock in moisture and provide relief to dry, irritated skin. [5] Cleansing should be gentle, avoiding harsh scrubbing.