Oily skin can be a daily frustration, from unwanted shine to clogged pores and persistent breakouts. But before you reach for the blotting paper again, it's worth asking: What causes oily skin in the first place?
Understanding the root of oily skin is the first step in managing it effectively. Whether it's environmental triggers or your skin type, several factors influence how much oil (or sebum) your sebaceous glands produce. In this blog post, we explore the most common causes of oily skin and how you can better support your skin’s balance.
1. Genetics: It Runs in the Family
If oily skin seems to be a family trait, that’s no coincidence. Your skin type is largely determined by genetics. Some people naturally have more active sebaceous glands, which means a higher likelihood of oilier skin from adolescence through adulthood. While you can’t change your genes, you can choose products that help manage excess sebum production and maintain a balanced, healthy skin barrier.
2. Hormonal Changes
Fluctuating hormone levels are a major trigger for excess oil - especially during puberty, pregnancy, menstruation, and menopause. Androgens, in particular, stimulate the sebaceous glands, leading to increased oil production and often contributing to acne.
If your skin becomes oilier at certain times of the month or during hormonal shifts, incorporating a gentle, active-based cleanser like the allmedic Active Cleanser can help support skin clarity and control oil without overdrying.
3. Over-cleansing or Using Harsh Products
It might seem logical to cleanse more often or use stronger products to cut through the shine, but this can backfire. Over-washing or using alcohol-based skincare strips the skin’s natural barrier, triggering it to produce even more oil as compensation.
A better approach? Choose gentle yet effective skincare. The allmedic Acne Clear Cleanser is formulated to cleanse and calm without disrupting your skin’s natural moisture balance, making it suitable for oily and acne-prone skin types.
4. Skipping Moisturiser (Yes, Really)
It’s a common misconception that oily skin doesn’t need moisturiser. In fact, when the skin becomes dehydrated, it compensates by producing even more oil, leading to a greasy texture and potential breakouts. Look for hydrating products that are labelled non-comedogenic and suitable for oily skin types to keep the skin nourished without clogging pores.
5. Comedogenic Makeup or Sunscreens
Heavy or occlusive products (including some foundations, primers, and sunscreens) can clog pores and trap oil, especially in combination with an already oily skin texture. The result? Buildup, congestion, and even more shine. Opting for products designed specifically for oily skin and thoroughly cleansing at the end of the day can make a significant difference.
Understanding what causes oily skin can help you choose skincare that supports clearer pores and better balance.
6. Dead Skin Build-up
If you’re not exfoliating regularly, dead skin cells can accumulate on the skin’s surface, mixing with oil and leading to blocked pores. This can create an uneven, dull texture and worsen acne.
Gentle exfoliation is key. The allmedic Active Exfoliating Scrub helps remove dead skin buildup while supporting clearer, smoother skin, ideal for oily and congested complexions.
7. Diet and Lifestyle Factors
High-glycaemic diets (think sugar and refined carbs), stress, and poor sleep can all play a role in oily skin. While research is ongoing, there’s growing evidence that what you eat (and how your body responds to stress) affects oil production. Hydration, a balanced diet, and good sleep hygiene support skin health from the inside out. While skincare is important, lifestyle changes often work hand-in-hand with it.
8. Using the Wrong Skincare for Your Skin Type
Using skincare that isn’t suited to your skin type can cause more harm than good, especially for oily or acne-prone skin. Heavy creams or products with occlusive ingredients may clog pores, worsen shine, and disrupt your skin’s natural function.
When your skin becomes reactive or unbalanced due to unsuitable products, it's important to help restore its natural equilibrium. The allmedic Skin Repair is designed to support irritated or sensitised skin, providing calming hydration while helping to reinforce the skin barrier.
Choosing the Right Skincare for Oily Skin
Managing oily skin isn’t about eliminating oil altogether, it’s about supporting your skin’s natural function while reducing excess sebum and preventing congestion. With the right routine, it’s possible to maintain clearer pores, smoother texture, and a more balanced complexion.
If you’re looking to build or refine your routine, allmedic’s acne products for oily skin are formulated specifically to meet the needs of oily and acne-prone skin, helping you care for your skin with clarity and confidence.
FAQs
What are the main reasons for oily skin?
Genetics, hormones, stress, and harsh skincare are the main reasons for oily skin. These factors increase sebum production and can lead to shine or breakouts.
Can stress cause oily skin?
Yes, stress can cause oily skin by triggering a rise in cortisol, a hormone that stimulates the sebaceous glands. This often results in increased oil production, clogged pores, and a higher likelihood of breakouts.
Does diet affect oily skin?
Diet can affect oily skin, especially if it includes high-glycaemic foods or excess dairy. These may influence hormonal activity and sebum production, which can worsen oiliness and contribute to acne in some individuals.
How to reduce oily skin naturally?
To reduce oily skin naturally, use gentle, pH-balanced skincare, stay hydrated, exfoliate weekly, and avoid overly processed foods. Managing stress and using lightweight, non-comedogenic products also support long-term oil control.
Why is my skin always oily, even after washing?
If your skin feels oily shortly after washing, it could be a sign that your cleanser is too harsh. This strips away natural oils, causing the skin to overcompensate with excess sebum, leading to persistent shine.
