Alcohol is a
diuretic, meaning it increases fluid loss through urine. Reduced hydration can lead to:
- dull or dry skin
- more visible fine lines
- impaired skin barrier function
- slower wound healing
This effect is often noticeable the next day after drinking.
Alcohol causes
blood vessels in the skin to dilate. This can produce:
- facial flushing
- persistent redness
- worsening of conditions such as Rosacea
Repeated vasodilation can eventually contribute to visible capillaries (telangiectasia).
Alcohol promotes
systemic inflammatory responses, which may aggravate several skin disorders, including:
- Acne vulgaris (indirectly through hormones and inflammation)
- Psoriasis
- Seborrheic dermatitis
Inflammation can also increase redness and sensitivity.
Alcohol can alter
blood sugar, insulin response, and hormone balance, which can indirectly affect:
- oil production in the skin
- acne flare-ups
- collagen breakdown over time
Heavy long-term drinking also increases
oxidative stress, which may accelerate skin ageing.
Alcohol fragments sleep cycles. Poor sleep reduces
skin repair and collagen production, which can contribute to:
- dull complexion
- puffiness
- slower recovery from irritation
Some people react to specific components of alcoholic beverages such as:
- histamines (especially in red wine)
- sulfites
- fermentation by-products
These can trigger flushing, itching, or rashes in susceptible individuals.