Issue link: https://www.ascpskindeepdigital.com/i/1537409
Protection. Education. Connection. There's an app for that at ascpskincare.com/app 35 A Little Extra Shine Proper treatment of oily and combination skin by Lydia Sarfati involve factors such as sebaceous gland dysfunction, compromised barrier function, microbiome imbalance, and infl ammation.3 WHAT IS COMBINATION SKIN? Oily skin can also manifest as combination skin, with oily prevalence on the nose and forehead, or T-zone, and drier skin on the periphery of the face. Combination skin is the most common skin type and is often mistreated both at the spa and at home. The condition manifests due to overactive sebaceous gland activity in the T-zone, creating excess sebum and leading to blackhead and pustule formation. At the same time, the area on the periphery of the face has underactive sebaceous glands, resulting in dry, fl aky skin and even a compromised skin barrier. Combination skin can be greatly aff ected by the environment, becoming oilier during the summer months due to heat and humidity and drier in the winter due to wind and lower humidity. This skin type can also result in dehydration due to improper product use. One study found that participants with combination skin type were 1.6 times more likely to have sensitive skin than participants with neutral skin.4 SKIN PHYSIOLOGY GETTY IMAGES OILY SKIN IS EXTREMELY PREVALENT. Studies estimate that 66–75 percent of people aged 15–20 experience oily skin.1 New research has found that oily skin can also be sensitive, potentially caused by infl ammation.2 Treating this skin type properly is important to avoid causing infl ammation or dryness that can lead to further barrier disruption. Here, we look at the causes of oily skin and discuss new products and professional treatments that have created eff ective results for combating oiliness while maintaining and strengthening the skin barrier. WHAT IS OILY SKIN? Sebaceous glands are situated at the root of the hair follicle in the dermis and are found nearly all over the body. Oily skin can fi rst manifest during puberty, with an increase in the hormone androgen actively stimulating the amount of oil produced by the sebaceous glands in the skin. When these glands produce oil or sebum, the oil or sebum mixes with perspiration, causing the skin's surface to become acidic. If there is an overproduction of oil due to hormones, stress, environmental factors, or medications, the oil can cause the dead skin cells on the skin's surface to stick to the oil and bacteria that are part of the skin's natural microbiome. This can cause impaction in the follicle, which can lead to acne. Oily, sensitive skin is a skin type characterized by high sebaceous gland secretion and sensitivity to environmental or physical stimuli. This skin type is complex due to various underlying causes that