Symptoms and context
Acne shows up as comedones (blackheads, whiteheads), papules, pustules, nodules, and cysts. It can be sporadic or persistent, mostly on the face but also on the chest, back, and shoulders. Adult acne — especially around the chin and jaw — is increasingly common and often hormonal.
Common causes
- Increased sebum production driven by androgens.
- Abnormal shedding inside the follicle (hyperkeratinization).
- Overgrowth of Cutibacterium acnes bacteria.
- Inflammation triggered by the above.
- Aggravators: heavy comedogenic products, occlusion, friction, certain medications, high-glycemic diet (modest effect), skim dairy (modest effect), stress, sleep disruption.
Routine principles
- Address all four mechanisms — sebum, shedding, bacteria, inflammation.
- Avoid over-stripping. Damaged barriers make acne worse and rebound oilier.
- Give actives 8–12 weeks before judging. Most "purging" resolves by week 6.
- Wear sunscreen. Acne treatments make skin photosensitive and PIH worse.
Morning routine
- Gentle non-stripping cleanser (or water rinse).
- Niacinamide 5–10% serum.
- Light, non-comedogenic moisturizer.
- Sunscreen SPF 30+ formulated for acne-prone skin (gel or fluid).
Evening routine
- Oil-friendly cleanser or salicylic acid cleanser.
- Adapalene 0.1% or retinoid every other night (build up).
- Spot benzoyl peroxide 2.5%–5% only on active lesions (not in same layer as adapalene-only retinoids… wait — adapalene is BP-stable).
- Lightweight ceramide moisturizer.
Ingredients to prioritize
- Salicylic acid (BHA) 0.5%–2% — pore clearing, anti-inflammatory.
- Adapalene 0.1% — over-the-counter retinoid with strong acne data.
- Benzoyl peroxide 2.5%–5% — antibacterial; lower percentages are nearly as effective with less irritation.
- Azelaic acid 10%–20% — anti-inflammatory, anti-pigment, gentle.
- Niacinamide — sebum, inflammation, post-acne pigment.
- Sulfur (occasional spot treatment).
Ingredients to use carefully
- Multiple acids stacked at once — pick one.
- Heavy occlusives (shea butter, coconut oil) on congested skin.
- Fragranced products that increase sensitivity to active ingredients.
- Sodium lauryl sulfate cleansers — barrier-stripping.
Recommended products
Budget options
- CeraVe SA Cleanser (salicylic acid + ceramides).
- Differin Adapalene 0.1% Gel.
- The Ordinary Niacinamide 10% + Zinc 1%.
- CeraVe AM Facial Lotion SPF 30.
Mid-tier
- Paula's Choice 2% BHA Liquid.
- La Roche-Posay Effaclar Duo+ (with adapalene-friendly companions).
- Naturium Azelaic Topical Acid 10%.
Luxury options
- SkinCeuticals Blemish + Age Defense.
- iS Clinical Active Serum.
- EltaMD UV Clear SPF 46.
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When to see a professional
- Cystic or nodular acne — scarring risk is real.
- Acne unresponsive to 12 weeks of consistent OTC treatment.
- Acne that follows a clear hormonal pattern (jawline, monthly cycles).
- Acne with severe pigmentation or scarring.
- Acne distressing your mental health — depression risk is well-documented.
Dermatologists can prescribe topical antibiotics, tretinoin, tazarotene, dapsone, spironolactone (for hormonal acne in women), combined oral contraceptives, and oral isotretinoin for severe cases.