What Causes Teen Breakouts And Blackheads?

Teen Breakouts Explained: What Causes Spots, Blackheads And Whiteheads?

Teen breakouts are very common, especially when skin is producing more oil than usual. Blackheads, whiteheads and inflamed spots can all start when excess oil, dead skin cells and bacteria become trapped inside the pore.

If you are trying to build a simple routine for teenage skin, our Teen Skincare category is a helpful place to start, as it brings together spot-prone skincare and everyday essentials from a range of brands in one place.

Understanding how breakouts form can help you choose products more carefully and avoid common mistakes such as harsh scrubbing, over-cleansing, or using formulas that feel too heavy for blemish-prone skin.

How does a breakout happen?

Your skin contains tiny openings called pores, many of which are connected to sebaceous glands. These glands produce sebum, the skin’s natural oil, which helps keep skin soft and protected. Sebum itself is not the problem. Breakouts begin when excess oil mixes with dead skin cells and becomes trapped inside the pore.

When the blockage stays close to the surface, it may look like a blackhead or whitehead. When the pore becomes irritated and inflamed, the breakout can turn into a red, sore spot such as a papule or pustule. Deeper inflammation can lead to more painful blemishes such as nodules and cysts.

Bacteria that naturally live on the skin can also contribute to inflammation inside a blocked pore. This is one reason some spots stay small while others become swollen, tender and slow to settle.

What are blackheads?

Blackheads are open comedones. They look dark because the blockage inside the pore is exposed to air and oxidises, not because the skin is dirty. They are especially common on the nose, chin and forehead.

Some blackheads clear quite easily, while others linger and can make the skin feel rough or congested. Keeping the skin gently exfoliated and avoiding pore-clogging products can help stop them building up.

If blackheads are a regular concern, a treatment such as Dermalogica Clear Start Breakout Clearing Fizz Mask can be a useful weekly step for teenage skin that feels oily, bumpy or blocked through the T-zone.

What are whiteheads?

Whiteheads are closed comedones. They form in a similar way to blackheads, but the pore stays closed over the blockage, so the contents do not oxidise. They often appear as small white or flesh-coloured bumps under the skin.

They may settle on their own, but they can also become inflamed if the pore becomes more irritated. Picking or squeezing usually makes things worse and increases the risk of marks afterwards.

What about milia?

Milia are often confused with whiteheads, but they are not acne. They are tiny, firm white bumps made of trapped keratin and are commonly found around the eyes, cheeks or forehead. They do not usually respond in the same way as ordinary spot treatments and are often best left alone or professionally assessed if they persist.

Why blackheads can turn into bigger breakouts

When congestion stays sitting inside the pore, it creates the right conditions for ongoing blockage and irritation. That does not mean every blackhead will turn into an inflamed breakout, but it does mean that keeping pores clear is a sensible part of a teen skincare routine.

A routine that is too harsh can also backfire. Stripping the skin, over-using scrubs, or constantly changing products can leave skin feeling unsettled and more reactive.

Common factors that contribute to teen breakouts

Hormones
During the teenage years, hormonal changes can increase oil production, which makes blocked pores more likely.

Genetics
Some people are simply more breakout-prone than others. If acne runs in the family, skin may be more likely to become oily or congested.

Stress
Stress does not directly cause acne on its own, but it can make existing breakouts feel worse and may slow the skin’s recovery.

Lifestyle and product choice
Heavy makeup, pore-clogging hair products, sportswear that traps sweat, and not removing sunscreen or makeup properly before bed can all play a part.

5 simple ways to help teen skin stay clearer

1. Cleanse gently, morning and evening

Use a gentle cleanser to remove oil, sweat, sunscreen and daily build-up. Wash after sport or exercise, but avoid over-cleansing. Skin that feels stripped can become irritated and harder to manage.

2. Add a weekly treatment for congestion

If your skin is prone to blackheads and blocked pores, a weekly mask or exfoliating treatment can help loosen build-up and leave skin feeling smoother. The key is consistency, not overdoing it.

3. Use a targeted blemish treatment when needed

If you tend to break out in the same areas, a focused product can help without overwhelming the rest of the face. Dermalogica Clear Start Breakout Clearing Booster is a practical choice for blemish-prone areas and occasional angry spots.

4. Do not skip moisturiser and SPF

Even oily teenage skin still needs hydration. A lightweight moisturiser can help support the skin barrier, while SPF is important if you are trying to reduce the look of post-spot marks. Dermalogica Clear Start Clearing Defense SPF30 is a useful daytime option for teen skin that prefers a lighter feel.

5. Choose non-comedogenic products where possible

Makeup, sunscreen and hair products can all end up sitting on the skin, especially around the forehead, cheeks and jawline. Choosing lighter, non-comedogenic formulas can help reduce the chance of blocked pores.

When should a teenager get extra help for acne?

Blackheads, whiteheads and the occasional breakout can often improve with a simple routine and a bit of patience. But if acne is painful, widespread, leaving marks, or affecting confidence, it is worth getting professional advice sooner rather than later.

Early support can help reduce the risk of scarring and save time, money and frustration. If you are unsure where to begin, browse our Teen Skincare selection for suitable everyday products designed for younger, breakout-prone skin.