What is a pimple, and how does it form?
Pimples are common skin lesions, usually associated withacne. They result from a multifactorial process: blockage of the pilosebaceous follicle by a mixture of sebum and keratinized cells, proliferation of the bacterium *Cutibacterium acnes* (formerly *Propionibacterium acnes*), and local inflammation. Several types of lesions often coexist:
- Retentional lesions: blackheads (open comedones) and microcysts (closed comedones).
- Inflammatory lesions: papules (red bumps without pus) and pustules (bumps with pus).
- Deep lesions: nodules and cysts (nodulocystic acne).
Each type requires a tailored approach, ranging from routine skincare to medical treatments depending on the severity.
How can you prevent breakouts?
A tailored routine and a few simple habits can help limit aggravating factors:
- Gently cleanse morning and night with a syndet or a gel with a pH close to 5.5.
- Light, non-comedogenic moisturizer (gel or fluid textures for combination to oily skin).
- SPF 30 to 50 sun protection year-round in a non-comedogenic fluid formula: the sun may temporarily dry out breakouts but causes a rebound effect within a few weeks.
- A varied diet: limit added sugars and ultra-processed foods with a high glycemic index; monitor the potential effect of skim milk products depending on individual profiles.
- Stress management and adequate sleep quality.
- Always remove makeup in the evening.
- Avoid touching your face frequently; do not squeeze lesions.
- Hygiene of accessories: change pillowcases 1 to 2 times a week; clean makeup brushes and sponges regularly.
What treatments are available for acne?
The approach is tailored to the severity (SFD/HAS recommendations):
- Mild to moderate acne:
- Cosmetic topical treatments: salicylic acid (BHA, max 2% in cosmetics according to EC Regulation 1223/2009—photosensitizing), niacinamide (B3), low-concentration alpha-hydroxy acids.
- Benzoyl peroxide gel or cream (2.5–5%): available at pharmacies with advice or by prescription, depending on the concentration. Photosensitizing; bleaches textiles and bedding; initially irritating.
- Prescription topical retinoids (adapalene, tretinoin, topical isotretinoin): the gold standard for treating comedones. Photosensitizing; some are contraindicated during pregnancy. Not to be confused with over-the-counter cosmetic retinol, which is less potent.
- Moderate to severe acne:
- Topical antibiotics (clindamycin, erythromycin) should always be used in combination; never alone, to limit bacterial resistance.
- Prescription oral cyclines (doxycycline, lymecycline), in short courses of treatment (generally 3 months); contraindicated in children under 8 years of age and during pregnancy.
- Hormonal treatment for women in certain situations (by prescription).
- Severe or treatment-resistant acne:
- Oral isotretinoin prescribed by a dermatologist: highly effective but teratogenic (ANSM pregnancy prevention program, continuous effective contraception, pregnancy tests, strict laboratory monitoring—liver function, lipid profile—and monitoring for adverse psychological effects). If psychological symptoms (mood changes, depressive thoughts) occur, seek medical attention immediately.
- In-office aesthetic medical treatments as indicated: superficial chemical peels, microdermabrasion, certain light therapies as indicated, and lasers as a second-line treatment.
Self-prescribing medications is not appropriate: a medical consultation allows the treatment strategy to be tailored to the individual’s profile and helps manage side effects.
How to Choose Skincare Products for Acne-Prone Skin?
For acne-prone skin, several criteria guide the choice:
- Products labeled as non-comedogenic and dermatologically tested.
- Proven active ingredients: cosmetic-grade salicylic acid (max 2% EC 1223/2009), niacinamide, zinc, cosmetic-grade azelaic acid (up to 10%), and cosmetic-grade retinol for daily use.
- Lightweight textures, gels, and serums rather than very rich creams.
- Avoid products high in denatured alcohol, strong fragrances, heavy mineral oils, certain highly comedogenic plant oils (unfractionated coconut oil, cocoa butter), and occlusive silicones in thick layers.
- Use a lightweight, non-comedogenic sunscreen.
- Limit skincare routines that are overloaded with potent active ingredients (AHA + BHA + retinoids + benzoyl peroxide used simultaneously), as these can compromise the skin barrier.
Can you wear makeup if you have acne-prone skin?
Yes, provided you choose suitable products and follow strict hygiene practices:
- Foundations, BB creams, and concealers labeled as non-comedogenic and dermatologically tested. The term “hypoallergenic” indicates a formulation designed to reduce the risk of allergic reactions but does not guarantee the absence of a reaction.
- Choose fluid or mousse textures rather than thick ones.
- Apply to prepared skin (cleansed, moisturized, and with SPF applied).
- Always remove makeup in the evening; double-cleanse if using long-wear makeup or water-resistant SPF.
- Clean brushes and sponges regularly (warm water + mild soap, dry thoroughly).
- Do not share makeup.
- Replace products according to their PAO (period after opening) and storage instructions.
What role does the evening routine play in preventing breakouts?
The evening routine plays a key role in caring for acne-prone skin:
- Thoroughly remove makeup, followed by gentle cleansing to eliminate sebum, pollution particles, and cosmetic residue.
- Targeted treatments that are better tolerated in the evening because they are photosensitizing: retinoids (cosmetic retinol or prescription-only medical retinoids), glycolic acid, and sometimes benzoyl peroxide. Introduce only one at a time, starting with a low frequency.
- Moisturize with a suitable texture to support the skin barrier.
- Do not layer strong active ingredients simultaneously; alternate them on different evenings if needed.
Cell renewal is most active during sleep, which is why corrective skincare products should be applied at this time.
Do hormones influence the appearance of breakouts?
Yes, hormonal fluctuations play a recognized role:
- Puberty: stimulation of the sebaceous glands by androgens.
- Menstrual cycle: frequent premenstrual breakouts.
- Pregnancy and postpartum: significant fluctuations, possible changes in acne.
- Polycystic ovary syndrome (PCOS): should be considered in adult women with persistent acne, especially if associated with irregular periods, hirsutism, or androgenetic alopecia. An endocrine workup is then indicated.
- Menopause: Hormonal fluctuations may aggravate or trigger late-onset acne.
- Certain treatments (corticosteroids, anabolic steroids, contraceptives containing progestins with androgenic effects, lithium) may contribute to acne.
A medical consultation allows for the evaluation of potential hormonal testing and the adjustment of the treatment strategy.
How does diet affect acne?
The link between diet and acne has been the subject of several studies with consistent findings:
- High-glycemic-index foods (added sugars, sodas, pastries, ultra-processed foods): may worsen acne in some people (due to effects on insulin levels and IGF-1).
- Dairy products (especially skim milk): associated with a possible worsening of acne in several studies, with effects varying depending on individual profiles.
- Omega-3s (fatty fish, nuts, flaxseeds): generally have a beneficial effect on systemic inflammation.
- Zinc: beneficial in cases of confirmed deficiency.
- Antioxidants (fruits, vegetables, nuts and seeds): generally beneficial effect on skin health.
Empirical elimination diets are not recommended, particularly in children and adolescents (risk of deficiencies). Consulting a doctor or dietitian allows for a personalized approach.
Is it possible to get rid of acne for good?
Acne is a chronic skin condition that occurs in flare-ups. For most people, it improves with age (usually starting in late adolescence or in one’s twenties), but adult forms do exist, particularly in women. The goal of treatment is to achieve long-term remission and minimize scarring, rather than a definitive “cure” in the strict sense. Oral isotretinoin often leads to prolonged remissions in some patients, though it does not guarantee that the condition will not recur. Regular follow-up allows treatment to be adjusted based on the disease’s progression and the patient’s hormonal profile.
Can you pop your own pimples?
Self-extraction is strongly discouraged for several reasons:
- Risk of secondary infection (folliculitis, abscesses, or even dermo-hypodermitis in the case of virulent bacteria).
- Risk of permanent scarring: atrophic (ice-pick, rolling, boxcar), hypertrophic, or marked post-inflammatory hyperpigmentation in skin types IV through VI.
- Worsening of local inflammation.
- Possible spread of bacteria to neighboring follicles.
- Particular risk in the “triangle of death” on the face (the area extending from the center of the forehead to the base of the nose and the corners of the mouth) due to deep venous drainage; manipulation should be avoided in this area.
Medical extraction, when necessary, is performed in a dermatology office or at a certified medical facility, under aseptic conditions and with the appropriate tools. At home, it is best to rely on topical treatments.
