Sebum Control

Oily Skin

Excess sebum production resulting in shine, enlarged pores, greasy texture, and a tendency to break out.

About

What is Oily Skin?

Oily skin is a skin type characterised by overactive sebaceous glands producing more sebum than the skin needs. The result is a persistently shiny complexion, enlarged pores, and a higher likelihood of developing comedones and breakouts. Sebum production is largely driven by genetics and hormones, but it can be worsened by over-stripping the skin with harsh products, which triggers a compensatory increase in oil output. Managing oily skin effectively means regulating sebum production rather than simply removing oil.

Common Causes

Genetics and androgen-driven sebaceous gland activity
Hormonal fluctuations (puberty, menstrual cycle, androgens)
Over-cleansing or use of harsh products that trigger rebound oil production
Hot, humid climates that increase surface oil
High-glycaemic diet and chronic stress

What To Look For

Key Ingredients

Tap an ingredient to learn more

Niacinamide

Reduces lipid synthesis in sebaceous glands and visibly minimises pore appearance

Zinc PCA

Inhibits 5-alpha-reductase to reduce androgen-driven sebum output long-term

Salicylic Acid

Dissolves excess oil inside pores and exfoliates the follicular wall

Kaolin

Absorbs surface oil without stripping the skin, suitable for daily use

How to Treat

Routine & Care

The goal for oily skin is to regulate sebum production without stripping the barrier. Paradoxically, over-cleansing and skipping moisturiser often make oiliness worse by triggering rebound sebum. A consistent routine with gentle cleansing, targeted sebostatic actives, and a lightweight non-comedogenic moisturiser usually produces better long-term results than aggressive oil removal.

Steps

1 Cleanse morning and evening with a gentle gel or foam cleanser. Avoid surfactant-heavy cleansers that strip the skin.
2 Apply a BHA toner (salicylic acid 1 to 2%) after cleansing to manage pore congestion, 2 to 3 times per week.
3 Use a niacinamide serum daily to regulate sebum output over time.
4 Apply a lightweight, non-comedogenic moisturiser. Skipping moisturiser worsens oil production; gel-textured or water-based formulas work well.
5 Apply a lightweight, non-comedogenic SPF every morning.
6 Use a kaolin clay mask once or twice a week to absorb excess oil without disrupting the barrier.

Key Actives to Look For

Niacinamide
Zinc PCA
Salicylic Acid
Kaolin

What to Avoid

Alcohol-denat in toners, which strips the skin and causes rebound oil production
Skipping moisturiser, which tells the skin to produce more oil to compensate
Heavy, comedogenic oils such as coconut oil or mineral oil on congestion-prone skin

Related Concerns

Pairings & Interactions

Often Occurs With

bha

BHA exfoliation and sebostatic actives are a natural pairing, addressing both the oil that causes congestion and the congestion itself

acne

Oily skin and acne are closely related; niacinamide and salicylic acid address both concerns effectively

oil-control

Oil-control and oily skin actives overlap almost entirely; treating one treats the other

May Worsen

hydrating

Not an incompatibility, but avoid very occlusive or oil-rich moisturisers; choose lightweight humectant-based formulas instead

Got Questions?

Frequently Asked Questions

Does oily skin age better than dry skin?

There is some evidence that naturally oilier skin develops fine lines and wrinkles more slowly because the sebum provides a degree of natural moisture and lubrication. However, oily skin is still susceptible to photo-ageing and pigmentation, and the benefits do not outweigh the need for daily SPF and antioxidant protection.

Why does my skin get oilier when I stop using harsh products?

When the skin is repeatedly stripped of its natural oils, it compensates by ramping up sebum production. Switching to gentler cleansing and stopping alcohol-heavy toners can temporarily seem to increase oiliness as the sebaceous glands recalibrate, but production generally normalises within 4 to 6 weeks. This process can be unsettling but is a normal part of rebalancing.

Should I skip moisturiser if my skin is oily?

No. Skipping moisturiser on oily skin is one of the most common mistakes and tends to make oiliness worse. The skin responds to surface dryness by producing more sebum. A lightweight, water-based or gel-texture moisturiser provides the hydration the skin needs without adding oil or congestion.

Does niacinamide actually reduce oil long-term?

Yes, with consistent use. Niacinamide reduces the rate of lipid synthesis in sebocytes (oil-producing cells), leading to a reduction in sebum output over time. Studies show visible reductions in sebum levels and pore appearance after 8 to 12 weeks of daily use at 5%.

Can hormones be treated topically for oil control?

Zinc PCA has some evidence for inhibiting 5-alpha-reductase, the enzyme that converts testosterone to dihydrotestosterone (DHT) in the skin, which drives sebum production. The effect is modest compared to systemic hormonal treatment, but it contributes to a broader oil-control routine. For significant hormonal oiliness, a GP can discuss contraceptive or other hormonal options.

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