Why does retinol cause breakouts?

Why would an acne treatment cause more spots?

Acne develops when oil and dead skin cells block pores. Retinol helps prevent those blockages, but visible clearing is not immediate. Pimples can continue during the first couple of months, and acne can initially look worse. This early worsening is often called a 'retinol purge', a name that makes an adjustment sound suspiciously like a separate product category.1

Retinol is one member of the retinoid family, not another name for every acne medicine in that family. Acne treatments such as adapalene and tretinoin reduce visible spots and the tiny pore blockages that precede them. They also reduce inflammation. Their treatment schedules should not be copied onto a cosmetic retinol product.23

Is it a purge or irritation?

Look beyond the number of spots. Dryness, burning, itching, redness and peeling are recognised retinol side effects. Retinoids can also cause dermatitis, meaning inflamed, irritated skin. Excessive use increases redness and peeling; those symptoms are not a reason to apply more.45

Not every breakout after starting retinol is necessarily a purge. Conditions such as perioral dermatitis and folliculitis can resemble acne and need different treatment. If the bumps are unfamiliar or the reaction persists, a dermatologist can check what you are actually treating.6

How to use retinol without overdoing it

Choose the lowest strength you can find rather than starting with the most intense formula. Retinol percentages do not have to appear on every cosmetic label, so the packaging can be very talkative without answering the useful question.2

1. 1Patch test a small area first. Wait a couple of days and check for significant redness or itching before using retinol across your face.
2. 2At night, wash with a gentle cleanser and pat dry. Avoid scrubbing.
3. 3Follow the product directions. General retinol guidance is a pea sized amount spread in a thin layer across the face, avoiding the eyes, nose and mouth.
4. 4Start every other night, or once every few days if needed, rather than immediately using retinol nightly. Increase gradually as your skin tolerates it.
5. 5Finish with a moisturizer labelled noncomedogenic, meaning formulated not to clog pores.

If you use a prescribed retinoid, ask your dermatologist before changing the amount, frequency or moisturizer order. For tretinoin, do not add other topical medicines, including benzoyl peroxide or salicylic acid, unless your clinician directs you to. Some prescribed combinations deliberately contain more than one acne ingredient.67

During the day, protect treated skin with shade, protective clothing and a noncomedogenic, water resistant, broad spectrum sunscreen with SPF 30 or higher. Retinoids increase sun sensitivity.46

How long should you wait?

Think in weeks, not applications. Acne treatment generally takes at least 6 to 8 weeks before fewer breakouts become noticeable; some topical retinoids take 12 weeks or longer. Continued worsening deserves a review, not an indefinite extension of the 'purge' explanation.46

When should you stop or get help?

Stop an irritating cosmetic retinol product if the reaction is severe. With tretinoin, contact your doctor for severe or persistent side effects, and call immediately for rash, hives or pain at the treatment area. Deep nodules, cysts or scarring need medical assessment rather than retinol alone.457

Avoid retinoids during pregnancy. Ask your clinician about use while breastfeeding. Eczema, existing dryness, allergies or substantial redness warrant extra caution. Irritation can trigger dark marks in darker skin, making a gradual start and moisturizer especially useful.124