Seasonal Variations in Mean Facial Sebum Excretions
Sebum excretion higher in the summer, but acne symptoms are toned down - higher summer sebum levelsmay be due to the increased fluidity of sebum in warmer conditions. Acne sufferers tend to observe an improvement in their acne symptoms during the summer, although this may be more directly related to factors such as UV light or stress levels than to sebum production.
Stress does NOT affect sebum production - although research finds a direct correlation between stress and increased acne symptoms, stress does not appear to increase the levels of sebum production. This means that even though stress can modulate hormone levels, such as CORTISOL, it does not appear that these pathways directly impact sebaceous gland activity.
