Acne in adult women: causes, skincare routine and when to see a dermatologist

Acne in adult women: why it appears after 20

Acne in adult women appears mainly because of hormonal changes, combined with factors such as stress, certain cosmetics or an unsuitable skincare routine. It is not just a teenage issue: many women in their 20s, 30s and 40s get breakouts, enlarged pores or marks that affect their daily lives.

Acne develops when a follicle becomes blocked by a mix of sebum and dead cells, which encourages inflammation. In adult women, hormonal fluctuations make this process repeat more easily at certain points in the cycle.

The most common causes of acne in women

The causes usually add up, which is why every case is different. These are the factors that come up most often:

• Hormonal changes: menstruation, pregnancy, starting or stopping contraceptives, or polycystic ovary syndrome.
• Ongoing stress: it can affect hormonal balance and sebum production.
• Comedogenic cosmetics: very occlusive creams or make-up that clog pores.
• Unsuitable routines: over-cleansing, rubbing or using products that are too harsh.
• Environmental factors: pollution, sweat or friction from a face mask or phone.
• Diet: a possible link with diets high in sugar and ultra-processed foods is being studied, although the response varies greatly from person to person.

Where it appears and how to recognise hormonal acne

Acne in adult women tends to concentrate on the jawline, chin, around the mouth and the lower cheeks. It often gets worse a few days before your period.

It frequently shows up as deep, tender spots that take a while to clear and can leave dark marks. Picking at them increases the risk of marks, so it is best not to squeeze them.

The emotional impact of acne

Acne is not just a cosmetic issue: it can affect self-esteem, social life and work. Many women avoid photos, face-to-face meetings or going out without make-up.

That is why caring for your skin is not frivolous but a form of well-being. If acne makes you feel anxious or low, talk to your doctor. And if stress is part of the problem, our article on stress and hair loss explains how it affects your hair too.

Skincare routine for acne-prone skin

The key is a gentle, consistent routine: cleanse, balance, treat with well-tolerated cosmetic actives and protect from the sun. More products, or stronger ones, does not mean better results.

• Cleansing: morning and evening, with a gentle gel that does not dry the skin.
• Toner: helps rebalance the skin after cleansing.
• Serum: with actives such as niacinamide or retinol, introduced gradually.
• Moisturising: oily skin needs hydration too, with light, non-comedogenic textures.
• Sunscreen: every morning, especially if you use retinol, as it increases sensitivity to the sun.

Avoid scrubbing hard, gritty exfoliants and switching products every week. Skin needs several weeks to show changes in the way it looks.

Cosmetic ingredients worth knowing

Some ingredients are common in care for blemish-prone skin because they are well tolerated:

• Niacinamide (vitamin B3): helps regulate excess sebum and even out the look of the skin.
• Retinol (vitamin A): supports skin renewal and improves texture; start with two or three nights a week.
• Salicylic acid: a gentle exfoliant that helps keep pores clear.
• Ceramides: strengthen the skin barrier, useful if other actives are drying.
• Panthenol: provides hydration and comfort to sensitised skin.

If you want to know more about the latter, read our article on panthenol for the skin.

An example of a three-step routine

If you would rather not combine separate products, a complete facial set makes the routine simpler. The EVODERM 3-in-1 Facial Set brings together a cleansing gel, a toner with niacinamide and ceramides, and a serum with niacinamide and retinol, also designed for young skin prone to blemishes.

In the morning, finish your routine with a light sunscreen such as EVODERM SPF50+ Sun Cream, which has a non-comedogenic texture. If it is your first time using retinol, apply it on alternate nights and see how your skin responds.

When to see a dermatologist

See a dermatologist if breakouts are severe, painful or leave marks, if they do not improve after a few months of a good routine, or if acne appears suddenly along with irregular periods or increased body hair.

A dermatologist can assess the cause and, if they consider it necessary, prescribe medical treatment. Cosmetics help care for the skin, but they do not replace a professional diagnosis.

Frequently asked questions about acne in adult women

Is it normal for a woman to have acne at 30 or 40?

Yes, it is common. Many women between 20 and 40 have breakouts linked to hormonal changes, especially on the jawline, chin and lower cheeks. Stress and some cosmetics also play a role. If breakouts are severe or painful, it is a good idea to see a dermatologist for a proper assessment.

Why do I get spots on my chin before my period?

Before menstruation hormone levels change, which can increase sebum production and make pores more likely to clog. That is why hormonal acne tends to concentrate on the chin and jawline. A gentle routine helps care for the skin, and if it gets much worse, the best step is to see a dermatologist.

Which ingredients suit acne-prone skin without irritating it?

Niacinamide, low-concentration retinol, salicylic acid and ceramides are common cosmetic ingredients for acne-prone skin. It is best to introduce them one at a time, protect the skin barrier with good hydration and use sunscreen every day, especially if you apply retinol in the evening.

How should I start using retinol if I have acne and sensitive skin?

Start by applying a small amount two or three nights a week on clean, dry skin, followed by a moisturiser. Only increase the frequency if your skin tolerates it well. Always use sunscreen in the morning, because retinol makes your skin more sensitive to the sun and more prone to irritation.

Can I wear make-up if I have acne?

Yes, as long as you choose non-comedogenic make-up and remove it thoroughly every night so it does not clog your pores. Clean brushes and sponges often, as they build up oil and dirt. If a foundation causes more breakouts, switch to a lighter texture and see a dermatologist if the problem persists.