Understanding Acne: Causes, Symptoms, and Skincare That Helps
Acne is one of the most common skin conditions worldwide, affecting teenagers, adults, and in some cases even infants. While it is extremely common, acne is also highly individual — meaning the causes, severity, and best treatment approach vary from person to person.
As a doctor with a special interest in skin health, I approach acne as a multifactorial condition that requires both understanding and a structured treatment strategy.
Acne is a chronic inflammatory skin condition that affects the hair follicles and sebaceous (oil) glands.
These glands produce sebum — a natural oil that protects and hydrates the skin. However, in acne-prone skin, sebum production can become excessive.
When this combines with dead skin cells, it can block pores and create an environment where bacteria can multiply, leading to inflammation and breakouts.
f you're looking for a complete, doctor-led treatment strategy that goes beyond understanding acne and focuses on how to actively manage it, read:
How to Treat Acne Effectively: A Doctor-Led 360° Approach to Clearer Skin
What Does Acne Look Like?
Acne can present in several different forms, often at the same time:
- Blackheads – open clogged pores that appear dark
- Whiteheads – closed clogged pores under the skin
- Papules – small red, inflamed bumps
- Pustules – pus-filled spots
- Nodules – deep, painful lumps
- Cysts – severe, deep lesions that may lead to scarring
Acne commonly affects the face, but can also appear on the chest, back, and shoulders.
What Causes Acne?
Acne is not caused by one single factor. Instead, it develops due to a combination of internal and external influences:
- Hormonal fluctuations (puberty, menstrual cycle, PCOS)
- Genetic predisposition
- Increased oil (sebum) production
- Inflammation within the skin
- Bacterial overgrowth in clogged pores
- Lifestyle factors such as stress, diet, and certain skincare products
How Common Is Acne?
Acne is extremely common:
- Around 80% of teenagers experience acne
- Up to 30% require medical treatment
- Many adults continue to experience acne beyond their teenage years
Without appropriate treatment, acne can persist for years and may increase the risk of post-inflammatory pigmentation and scarring.
Tips to Help Reduce Breakouts
While acne cannot always be fully prevented, certain habits can help reduce flare-ups:
- Use gentle, non-stripping skincare
- Avoid pore-clogging (comedogenic) products
- Do not over-exfoliate the skin
- Avoid picking or squeezing spots
- Remove makeup thoroughly each evening
- Shower after sweating or exercise
- Support a balanced, low-inflammatory lifestyle where possible
Skincare Ingredients That Help Acne
Medical-grade skincare uses clinically studied ingredients that target different aspects of acne formation.
Salicylic Acid (BHA)
A lipid-soluble exfoliant that penetrates deep into pores to remove excess oil and debris. Particularly effective for blackheads and congestion.
Mandelic Acid
A gentle alpha-hydroxy acid with antibacterial properties. Suitable for sensitive or reactive acne-prone skin.
Lactic Acid
An exfoliating acid that also supports hydration, making it useful for dry but acne-prone skin types.
Niacinamide
Helps regulate oil production, reduce inflammation, and support the skin barrier. Also helps improve post-acne marks over time.
Retinol
A vitamin A derivative that increases skin cell turnover, helps unclog pores, and supports improvement in acne and post-acne texture.
If you're considering retinol for acne, explore our curated range:
Shop Retinol for Acne-Prone Skin here
Recommended Medical-Grade Acne Skincare
To support acne-prone skin effectively, we recommend a structured routine using clinically formulated products.
Cleanse
Treat
Explore full range here:
Acne-Prone Skin Collection
Hydrate
- IMAGE Skincare Clear Cell products
- HydroPeptide Oil-Free Moisturiser
For a deeper guide on choosing the right moisturiser for acne-prone skin, read:
Should You Still Moisturise If You Have Acne-Prone Skin?
Protect
Support Your Skin from Within
In some cases, internal support may complement topical skincare.
Commonly used options include:
These may support overall skin health, hydration, and barrier function as part of a broader skincare strategy.
Download Your Free Acne Guide
To help you build a structured routine at home, download our free resource:
Acne Skincare Blueprint (Free Ebook)
Learn how to:
- Build an effective acne routine
- Avoid common skincare mistakes
- Choose the right ingredients for your skin type
Download here
Not Sure What Your Skin Needs?
Acne is highly individual, and the most effective treatment often depends on your skin type, severity, and triggers.
If you're unsure where to start, a personalised consultation can help you build a tailored routine designed for your skin.
Book a skincare consultation here
Final Thoughts
Acne is a complex skin condition, but it is also highly manageable with the right approach.
Understanding what causes acne and using a structured skincare routine based on medical-grade ingredients can significantly improve long-term skin health and confidence.
At Villa Skincare, we take a doctor-led, evidence-based approach to helping patients build effective skincare routines tailored to their individual needs.
Dr S Ahmed
Villa Skincare
Updated May 2026