This advice is general in nature only – some OTC treatments are best to be avoided in pregnancy for example. This is provided more for my patients whom I have already counselled the pros and cons of various ingredients with. You should discuss with a doctor or pharmacist before using any of these products.
A clear guide to what works, what strength to buy, and how to build a routine you can actually stick to.
Over-the-counter acne products can be extremely effective — but most people don’t get results because they’re using the wrong active ingredient, layering too many products, or stopping too early due to irritation. This guide explains the most evidence-supported OTC options, the typical concentrations to look for, and simple routines that clear breakouts while protecting your skin barrier.
If you’d like a personalised plan (and to avoid wasting money on products that won’t help), start with a consultation.
Who This Guide Is For
This page is ideal if you:
- have mild to moderate acne (blackheads, whiteheads, or inflamed pimples)
- want to start with evidence-based skincare before escalating to prescriptions
- keep reacting to products or feel overwhelmed by acne advice
- want to reduce post-acne marks by calming inflammation early
If your acne is severe, painful, scarring, or not improving after 8–12 weeks of a consistent routine, see:
Choose Your Routine Based on Your Acne Type
Most OTC routines work best when matched to your acne pattern. Pick the pathway that fits you best:
If you mainly have blackheads and whiteheads (congestion)
Best starting plan:
- Salicylic acid (BHA) + Adapalene (retinoid), introduced slowly
If you mainly have red pimples (inflammatory acne)
Best starting plan:
- Benzoyl peroxide (BPO) and/or azelaic acid, plus barrier support
If you’re sensitive or get irritated easily
Best starting plan:
- Azelaic acid + niacinamide, then add other actives gradually
If you have a mix (most people do), we usually prioritise calming inflammation first.
A Simple Routine That Works
The best routine is usually simple. Consistency beats intensity.
Morning
1.Gentle cleanser
2.One treatment active (choose from below)
3.Lightweight moisturiser (if needed)
4.Sunscreen suitable for acne-prone skin
Night
1.Gentle cleanser
2.One treatment active (often different from morning, or alternate nights)
3.Moisturiser to protect the barrier
If you do nothing else, do these three things:
- cleanse gently
- use one proven active consistently
- wear sunscreen and cleanse it off at night
Choosing the Right Cleanser, Moisturiser and Sunscreen
A good acne plan often fails because the “boring basics” irritate the skin barrier.
Cleanser: choose a gentle, fragrance-free cleanser that leaves the skin comfortable, not tight. Avoid harsh scrubs, cleansing brushes, and very stripping foaming cleansers, especially if you’re using acne actives.
Moisturiser: a lightweight, non-comedogenic moisturiser helps your skin tolerate acne actives (particularly benzoyl peroxide and retinoids). Barrier support often reduces redness, flaking, and irritation-related breakouts.
Sunscreen: daily SPF is essential if you use retinoids, AHAs, or acne treatments that increase sensitivity. Choose non-comedogenic, lightweight fluid or gel formulas. Always cleanse sunscreen off at night — leaving it on can worsen congestion.
The Most Effective OTC Active Ingredients (With Typical Strengths)
Benzoyl Peroxide (BPO)
Best for: inflammatory acne (red pimples), breakouts that keep returning.
Typical strengths:
- 2.5% (often as effective as higher strengths with less irritation)
- 5% (stronger, more drying for some)
- 10% (often unnecessarily irritating for facial skin)
How to use:
- start 2–3 nights/week, then increase as tolerated
- moisturise to reduce dryness
- avoid bleaching fabrics (towels/pillowcases)
Salicylic Acid (BHA)
Best for: blackheads, whiteheads, congestion, oily skin.
Typical strengths:
- 0.5%–2% (most leave-on products and cleansers)
How to use:
- start once daily or every second day depending on sensitivity
- if you get dryness, reduce frequency rather than switching products constantly
Adapalene (OTC Retinoid)
Best for: comedones, recurring congestion, acne that relapses when you stop.
Typical strength:
- 0.1% adapalene (standard OTC strength)
How to use (this matters):
- pea-sized amount for the entire face
- start 2 nights/week for 2 weeks, then every second night, then nightly if tolerated
- moisturiser before or after can reduce irritation
- expect a settling period early on
Azelaic Acid
Best for: inflammatory acne plus post-acne marks (brown marks), sensitive or rosacea-prone skin.
Typical strengths:
- 10% (common OTC strength)
- 15%–20% (usually prescription strength)
How to use:
- once daily initially, then increase as tolerated
- often one of the best options when skin is reactive or pigment-prone
Alpha Hydroxy Acids (AHAs: glycolic/lactic/mandelic)
Best for: texture, dullness, mild congestion, post-acne marks.
Typical strengths (leave-on products):
- Glycolic acid 5%–10% (good starting range)
- Lactic acid 5%–10% (often gentler than glycolic)
- Mandelic acid 5%–10% (often well tolerated in sensitive or pigment-prone skin)
How to use:
- start 1–2 nights per week
- do not combine with multiple other strong actives early on
- sunscreen is essential
Niacinamide (Vitamin B3)
Best for: barrier repair, inflammation control, oily skin support, and post-acne redness/marks.
Typical strengths:
- 2%–5% (often well tolerated and effective)
- 10% (common in cosmetic serums; can irritate some people)
How to use:
- daily, under moisturiser or sunscreen
- choose simple formulations (too many added botanicals can irritate sensitive skin)
Supportive Cosmeceuticals (Helpful, But Not the Core Treatment)
These can improve tolerance and post-acne marks, but they don’t replace proven acne actives.
- Vitamin C: most useful for improving overall tone and post-acne marks rather than preventing breakouts.
- Sulfur / zinc: can be helpful as supportive or spot treatments, especially if skin is sensitive.
- Avoid piling on too many “extras”: the more products, the higher the irritation risk — and irritation can worsen acne.
If you’re considering more than one cosmeceutical or have questions about your regime – you should book an appointment with one of our expert dermal clinicians. Book now (automed – dermal 40 minute appointment)
If you prefer minimal-medication and “natural-aligned” options, see: Natural Ways to Treat Acne.
What to Avoid (Common Triggers)
- harsh scrubs and cleansing brushes
- alcohol-heavy toners/astringents
- layering 3–5 actives at once
- heavy occlusive oils on acne-prone facial skin
- frequent product switching
- picking and squeezing (high scarring risk)
How Long Until You See Results?
A realistic timeline:
- 2 weeks: less “angry” inflammation if you’re on the right track
- 6 weeks: fewer new lesions forming
- 12 weeks: meaningful improvement and more stable control
If you’re not improving by 8–12 weeks, or you’re getting deep painful lesions, don’t just keep cycling products — you may need prescription options or in-clinic support.
Book an Acne Consultation (Main cosmetic Automed booking page)
When to Escalate Beyond OTC
Consider stepping up if you have:
- painful nodules or cyst-like lesions
- scarring or rapidly worsening acne
- significant impact on confidence or daily life
- acne persisting despite a consistent 8–12 week routine
Next options:
- Prescription Acne Treatments
- LED vs Laser vs PDT for Acne
- Hormonal Acne in Women
- Acne Scarring Treatments
Frequently Asked Questions
Can I use benzoyl peroxide and adapalene together?
Yes, but introduce slowly and consider alternating nights to reduce irritation. A simple plan often works best: one active at a time, build up gradually.
Why does acne sometimes worsen at the start of retinoids?
Retinoids speed up turnover, which can bring existing micro-blockages to the surface early on. This usually settles with correct pacing and barrier support.
Do I need a moisturiser if my skin is oily?
Often yes. Barrier damage can increase irritation and inflammation. Choose a light, non-comedogenic option.
Is “natural” skincare better for acne?
Not necessarily. “Natural” is not the same as non-irritating or non-comedogenic. If you prefer minimal medication, see Natural Ways to Treat Acne.