A blackhead is a type of comedone - the clinical term for a blocked pore. Specifically, it is an open comedone: a pore that has become clogged with a mixture of sebum (your skin's natural oil) and dead skin cells, but where the opening of the pore at the skin's surface remains unblocked.

That open surface is what makes a blackhead a blackhead. When the sebum trapped inside the pore is exposed to oxygen in the air, it oxidises - the same chemical process that causes a sliced apple to go brown. The result is the characteristic dark brown or black discolouration that gives blackheads their name. It has nothing to do with hygiene, and everything to do with chemistry.

Contrast this with a whitehead (a closed comedone): same blockage inside the pore, but the opening is sealed over by a thin layer of skin, so no oxidation occurs and the congestion stays white or flesh-coloured beneath the surface. Same root cause, different outcome at the surface - which is why both respond to the same core ingredient (Salicylic Acid), but present so differently.

The Science of a Blackhead

The process of a blackhead forming follows a clear, predictable sequence:

1. Excess sebum production — the sebaceous gland overproduces oil, which pools inside the hair follicle (pore)
2. Dead skin cell accumulation — skin cells that should shed naturally become trapped inside the pore wall, mixing with the sebum
3. Comedone formation — the combined plug of sebum and dead skin cells forms a comedone inside the pore
4. Oxidation — the pore remains open at the surface, the top of the plug is exposed to air, and the sebum oxidises to produce the characteristic dark colour
5. The blackhead is visible — the dark plug is now visible at the skin's surface

Unlike inflammatory blemishes (papules, pustules), blackheads do not involve bacterial proliferation or an immune response - which is why they are typically painless and non-inflamed. They are the earliest, most common stage of pore congestion, and the most responsive to targeted ingredient-led skincare.

For more on how pore congestion develops and what drives it, read: What Causes Clogged Pores? →

Blackheads concentrate wherever sebaceous glands are largest and most active. Understanding this helps explain why certain areas are more prone, and how to adapt your approach accordingly.

Blackheads on the Nose

The nose is the most common site for blackheads - and the most searched. The skin on and around the nose contains a particularly high density of large sebaceous glands, making it the most oil-productive area on the face. The pores here are also physically larger, which means blockages are more visible. Salicylic Acid, used consistently in a 60-second cleanse, is the most effective approach for nose blackheads. Avoid pore strips - they create a temporary appearance of clearing but damage the pore lining and cause rebound congestion.

Blackheads on the Forehead

A classic T-zone location. The forehead shares the same high-sebum profile as the nose, and is also frequently affected by haircare product transfer (especially products containing heavy silicones or oils along the hairline). Consider both skincare ingredients and what is contacting this area.

Blackheads on the Chin & Jaw

The chin and jaw are often influenced by hormonal activity - sebum production in this zone can fluctuate with the menstrual cycle. Consistent use of Salicylic Acid as a daily cleanser is the most effective preventative approach, with Niacinamide added to help regulate oil production at the gland level.

Blackheads on the Back & Chest

Body blackheads follow the same biology as facial blackheads - excess sebum, dead skin cell buildup, open oxidised comedones. The Salicylic Acid Cleanser works effectively on the back and chest as well as the face. The Glycolic Acid Toner can also be applied to back and chest areas to support surface exfoliation.

Blackheads on the Ears

Less commonly discussed but a frequent concern - the skin inside and around the ears contains sebaceous glands and is prone to the same congestion. Gentle use of a BHA is the most appropriate approach; avoid mechanical tools or picking in this area.

Blackheads are caused by the same fundamental mechanism every time - a pore blocked with sebum and dead skin cells that oxidises at the surface. But the triggers that drive this blockage vary, and understanding them helps you build a routine that targets the right drivers for your skin.

1. Excess Sebum Production

The most direct physical cause. Sebum itself is not the problem - it is essential for maintaining a healthy, protected skin barrier. The issue arises when the sebaceous glands produce more oil than the skin can naturally clear, leading to the pore congestion that starts the blackhead cycle. Sebum production is largely genetic, which is why some skin types are significantly more prone to blackheads than others. Ingredients like Niacinamide and Zinc help regulate sebum production at the surface level without stripping the skin's essential oils.

2. Dead Skin Cell Buildup

Skin naturally sheds dead cells as part of its renewal process. In blackhead-prone skin, this process is often disrupted - dead cells accumulate inside the pore rather than shedding cleanly, combining with sebum to form the plug that becomes a blackhead. Regular exfoliation - both inside the pore (Salicylic Acid) and at the surface (Glycolic Acid) - is the most direct way to address this buildup.

3. Hormonal Fluctuations

Androgens - including testosterone - directly stimulate the sebaceous glands to produce more sebum. This is why blackhead activity often increases during puberty, around the menstrual cycle, and during periods of hormonal change. The T-zone (nose, forehead, chin) tends to be most reactive to hormonal sebum changes, which is why it is disproportionately affected by blackheads.

4. Comedogenic Skincare & Haircare Products

Certain product ingredients - particularly heavy occlusive oils, waxes and some silicones - can sit inside or over the pore, contributing to congestion. This is especially relevant for the hairline and forehead, where haircare products frequently make contact with the skin. Switching to lightweight, non-comedogenic formulations makes a meaningful difference for blackhead-prone areas.

5. Not Cleansing Effectively

A rushed cleanse or an insufficient formulation leaves sebum, SPF, makeup and environmental pollutants on the skin surface and inside the pore, contributing to the daily accumulation of congestion. A thorough 60-second active cleanse with a BHA-based formula dissolves this buildup far more effectively than a quick rinse with a basic cleanser.

6. Skin Type & Genetics

Oily and combination skin types are inherently more prone to blackheads due to higher baseline sebum production — and this is largely genetically determined. It does not mean that dry or normal skin types cannot develop blackheads (they can and do), simply that the threshold for congestion is lower in oilier skin types.

The most important thing to understand about getting rid of blackheads is how they need to be reached. They are inside the pore - not on the skin's surface. That is why physical scrubs (which work on the surface), pore strips (which pull at the surface) and squeezing (which compresses around the pore externally) do not resolve blackheads long-term. They may temporarily disturb the visible part of the plug, but they do not clear the blockage at its source, and they frequently cause irritation and rebound congestion.

What does work is oil-soluble chemical exfoliation - specifically Salicylic Acid (BHA). As an oil-soluble acid, Salicylic Acid is uniquely capable of dissolving into the sebum inside the pore and exfoliating the dead skin cell buildup from within. It addresses the blockage at its actual location, not just at the skin's surface.

The Most Effective Approach:

Step 1 — Daily BHA Cleanse
A Salicylic Acid cleanser used daily, with a full 60-second massage on damp skin, is the single most impactful step in a blackhead-clearing routine. The 60 seconds of contact time is where the exfoliation happens. This is not optional - rinsing after 10 seconds delivers a fraction of the benefit.

Step 2 — Leave-on BHA Treatment
A leave-on Salicylic Acid serum (like the BHA Serum) extends the contact time dramatically, allowing the active ingredient to work more deeply inside the pore between cleansing. Introduced 2–3 times per week and built up to nightly as skin adjusts.

Step 3 — Regulate Oil Production
Niacinamide at 10% concentration works at the sebaceous gland to reduce the overproduction of sebum that keeps filling cleared pores. Without addressing oil production, the cycle repeats. Niacinamide is applied after your BHA step, AM and PM.

Step 4 — Surface Exfoliation
A Glycolic Acid toner used 2–3 times per week supports the Salicylic Acid by clearing dead skin cells at the surface level, preventing the buildup that contributes to fresh congestion. AHA and BHA work at different depths and are complementary rather than competing.

Step 5 — Consistency
Blackheads do not clear overnight, and they will continue to reform without ongoing use of the right routine. The goal of a blackhead routine is not just to clear existing congestion - it is to create conditions in which new blackheads cannot form. That requires consistent, daily use of oil-regulating and pore-clearing ingredients.

The ingredient landscape for blackhead-prone skin can feel overwhelming. Here is a clear, honest breakdown of what actually works, how each ingredient functions, and how they fit into a routine together.

Salicylic Acid (BHA)

Salicylic Acid is the gold-standard ingredient for blackheads - and the reason is specific: it is oil-soluble. While water-based acids can only exfoliate the surface of the skin, Salicylic Acid dissolves directly into the sebum inside the pore, targeting the blockage at its source. It also has anti-inflammatory properties, which helps reduce any redness around congested areas, and mild antibacterial properties. For blackheads specifically, there is no more effective ingredient.

It is the most important ingredient in both rinse-off (cleanser) and leave-on (serum) formats - and both formats are worth using, as they work at different intensities and contact times. For a full breakdown of how Salicylic Acid works, read our complete Salicylic Acid guide →

Niacinamide (Vitamin B3)

Niacinamide works upstream of the blackhead cycle - at the sebaceous gland itself. By reducing the overproduction of sebum, it decreases the volume of oil that flows into the pore in the first place, making congestion less likely to form. It also visibly reduces the appearance of pore size (by improving the skin around the pore, not by physically shrinking the pore itself), and calms any redness associated with congested areas. It is one of the best-tolerated actives available and suitable for daily use across all skin types.

For a complete guide to Niacinamide - including how it interacts with Salicylic Acid - read our Niacinamide ingredient guide →

Glycolic Acid (AHA)

Where Salicylic Acid works inside the pore, Glycolic Acid works at the skin's surface. As an Alpha Hydroxy Acid, it exfoliates the outermost layer of skin, clearing the dead skin cells that accumulate and contribute to new congestion forming. It also improves overall skin texture and tone, and in toner format can be used on both the face and body. It works best as a complement to Salicylic Acid rather than a replacement - the two exfoliate at different depths and should be used on alternating days if both are in leave-on formats.

Zinc

Zinc is a mineral with well-documented sebum-regulating and antibacterial properties. In topical skincare, it supports the regulation of oil production at the skin's surface and amplifies the oil-controlling effect of Salicylic Acid when the two are combined - as they are in the INKEY Salicylic Acid Cleanser. It is a supporting ingredient rather than a standalone hero, but a valuable one.

Key Ingredients: At a Glance

What to Avoid in Blackhead-Prone Skin Routines

• Pore strips — temporary disruption only; damage the pore lining; drive rebound congestion
• Physical scrubs — work only at the surface; cannot clear inside the pore; risk of micro-tears and irritation
• Heavy occlusive oils and waxes — sit on top of or inside the pore rather than absorbing
• High-alcohol formulas — strip the barrier and trigger compensatory oil overproduction
• Comedogenic ingredients in makeup or haircare — silicones, heavy mineral oils and waxes near congested areas

A routine that genuinely works for blackhead-prone skin does two things simultaneously: it clears existing congestion and prevents new blackheads from forming. The biggest mistake people make is going too hard too fast - over-exfoliating strips the skin barrier and triggers the compensatory oil production that makes congestion worse, not better.

Here is the complete step-by-step routine, from the simplest starting point through to a comprehensive approach for established users.

Start Here: The Foundation Routine

If you are new to blackhead skincare or building from scratch, start with these three steps and allow 2–4 weeks for skin to adjust before adding anything new.

AM:

1. Salicylic Acid Cleanser — massage a raspberry-sized amount onto damp skin for a full 60 seconds, then rinse
2. 10% Niacinamide Serum — apply to face and neck after cleansing
3. Omega Water Cream — lightweight, oil-free moisture
4. SPF — essential every morning

PM:

1. Salicylic Acid Cleanser — repeat the 60-second massage cleanse
2. 10% Niacinamide Serum
3. Omega Water Cream

The Full Routine

Once the foundation is established (typically 2–4 weeks of consistent use), build toward this complete approach:

AM Routine:

PM Routine:

INKEY Pro Tip:The 60-second massage in the Salicylic Acid Cleanser step is where the exfoliation happens. The temptation is to rinse quickly, but contact time is everything with BHA actives. Set a timer. It makes a measurable difference to results.

Blackhead-prone skin is not exclusive to oily skin - every skin type can develop blackheads, and the routine approach needs to account for each skin type's underlying characteristics.

Misinformation about blackheads is everywhere. These are the most persistent myths - and what the evidence actually says.

"Blackheads are caused by dirty skin."
False. Blackheads are caused by a chemical process - oxidation of sebum inside an open pore - not by surface dirt or poor hygiene. Over-cleansing and scrubbing aggressively to "clean" blackheads damages the skin barrier, disrupts the skin's natural microbiome and can worsen congestion. A thorough, twice-daily 60-second cleanse with the right BHA formula is both sufficient and far more effective.

"Pore strips are the best way to remove blackheads."
Pore strips create a very satisfying visual result - but what they remove is largely the surface of the blackhead plug, not the blockage inside the pore itself. They do not address the sebum and dead skin cells deeper in the follicle, meaning the blackhead reforms quickly. Worse, repeated use of pore strips can damage the delicate pore lining and cause redness and broken capillaries. The BHA Serum addresses the blockage at its source and prevents reformation - pore strips do neither.

"You just need to squeeze them out."
Squeezing blackheads compresses the surrounding pore wall and forces congestion further into the tissue, risking inflammation and damage to the pore itself. Repeated squeezing over time can permanently stretch the pore, making it appear larger. The correct approach is chemical exfoliation - letting Salicylic Acid dissolve the blockage from inside the pore. If extraction is appropriate (for persistent, individual blackheads), this should be done by a professional facialist or dermatologist.

"My pores are permanently enlarged from blackheads."
Pore size is largely genetic - it cannot be physically reduced. However, the appearance of pore size is significantly influenced by what is inside the pore. A pore filled with an oxidised sebum plug looks visibly larger than a clear, clean pore. Consistent BHA use to keep pores clear, combined with Niacinamide to support the skin around the pore, visibly reduces the appearance of enlarged pores without any permanent structural change.

"Blackheads only affect oily skin."
Oily skin is more prone to blackheads because it produces more sebum - but dry skin, normal skin, combination skin and even sensitive skin can all develop blackheads. The triggers and the appropriate routine vary by skin type, but the fundamental biology is identical. If you have dry skin with blackheads, the answer is not to skip moisturiser - it is to choose the right exfoliating and hydrating formula combination.

"SPF makes blackheads worse."
Some formulations of SPF can congest pore-prone skin - but this is a formulation issue, not a reason to skip sun protection. Choose a lightweight, non-comedogenic SPF and apply it as the final AM step. UV exposure without SPF worsens any post-congestion marks by triggering melanin production in already-affected areas, making dark spots more persistent.

INKEY's blackhead range is built around a clear philosophy: address the right stage of the congestion cycle, use clinically supported ingredients at effective concentrations, and keep everything accessible. Here are the key products and what each one does.

Salicylic Acid Cleanser - £12 (150ml)

The INKEY hero product for blackhead-prone, oily and congested skin. Rated 4.6 stars from over 1,342 reviews, and recognised by Glamour, Vogue, Grazia and Marie Claire. The most effective entry point into blackhead-focused skincare - and one that consistently delivers results significantly above what most people expect from a daily cleanser.

Key formulation facts:

• 2% Salicylic Acid — maximum OTC concentration; oil-soluble and penetrates inside the pore
• Zinc compound — regulates excess oil production without stripping
• 0.5% Allantoin — soothes to prevent irritation from the active exfoliation
• pH 4.5–5.0 — optimal for Salicylic Acid to remain fully active
• Fragrance-free, pregnancy and breastfeeding safe, Vegan Society certified

Clinical results:

• 90% agree skin looks visibly clearer after just 3 days*
• 93% agree skin instantly looks less oily*
• 92% agree skin did not feel tight or stripped*

4-week independent consumer trial of 66 people.

How to use: Apply AM and PM. Massage a raspberry-sized amount onto damp skin for 60 seconds. Add warm water to emulsify, then rinse. Effective on blackhead-prone areas on the back and chest too.

Shop Salicylic Acid Cleanser

Beta Hydroxy Acid (BHA) Serum — £10 (30ml)

The leave-on step that takes blackhead clearing to the next level. Rated 4.5 stars from 332 reviews. As a leave-on formula, the BHA Serum maintains extended contact with the skin, delivering deeper pore exfoliation than a rinse-off cleanser alone — and working continuously between cleansing sessions.

Key formulation facts:

• 2% Salicylic Acid (leave-on) — extended contact time for deeper, more targeted pore exfoliation
• 1% low molecular weight Hyaluronic Acid — prevents the dryness that most leave-on BHAs cause
• Ultra-lightweight, non-comedogenic
• Fragrance-free, pregnancy and breastfeeding safe

How to use: Apply PM (and AM as skin adjusts). After cleansing, pat 1–2 drops onto face and neck. Start with 2–3 applications per week; build to nightly over 2–4 weeks. Avoid using on the same evening as the Glycolic Acid Toner — alternate them.

Shop BHA Serum

10% Niacinamide Serum — £10 (30ml)

One of INKEY's most-loved formulas. Rated 4.5 stars from 739 reviews. At 10% concentration, this is an effective daily serum for reducing visible oil, regulating sebum production and visibly minimising the appearance of pores - making it the essential companion to the Salicylic Acid Cleanser in any blackhead routine.

What it does for blackhead-prone skin:

• Regulates sebum production at the gland level - reducing the oil overproduction that refills cleared pores
• Visibly minimises the appearance of enlarged pores
• Calms any redness around congested areas
• Strengthens the skin barrier - essential for skin regularly using exfoliating actives

How to use: Apply AM and PM after cleansing and any active serums. Layer after BHA Serum or 360° Serum. For the full guide to Niacinamide and how to layer it correctly, read the complete Niacinamide guide →

Shop Niacinamide Serum

Glycolic Acid Toner — £13 (100ml)

Rated 4.4 stars from 240 reviews. The AHA complement to the BHA Serum. While Salicylic Acid works inside the pore, Glycolic Acid works at the skin's surface — clearing the dead skin cell buildup that contributes to new congestion forming. Used on alternating evenings to the BHA Serum, it creates a comprehensive dual-exfoliation approach.

Key formulation facts:

• Glycolic Acid (AHA) — water-soluble surface exfoliant
• Can be applied to face, neck and body blackhead-prone areas
• Fragrance-free

How to use: Apply PM on evenings when not using the BHA Serum. Saturate a cotton pad and sweep across skin after cleansing. Follow with Niacinamide Serum and moisturiser. Do not use on the same evening as the BHA Serum.

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360° Skin Clearing Serum — £16 (30ml)

Rated 4.5 stars from 48 reviews. The most comprehensive blemish serum in the INKEY range — designed to address all three stages of the blemish cycle in a single formula: preventing new congestion from forming, treating existing blemishes, and fading the post-blemish marks left behind. Particularly suited to those dealing with both blackheads and occasional inflammatory blemishes simultaneously.

How to use: Apply to face and neck AM and/or PM after cleansing. Follow with Niacinamide Serum and moisturiser.

Shop 360 Serum

Shop by Routine Need

Everything covered in this guide comes together below. Use this as your definitive reference for building and maintaining a routine for blackhead-prone skin.

Morning:

Evening:

Combinations That Work

Not sure where to start? Take our 2-minute Skincare Quiz → for a personalised routine recommendation.

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Want a personalised skin assessment? Try the Breakout Analyser Pro → — AI-powered and backed by dermatologists.

• What Causes Clogged Pores? →
• What is Acne? The Complete Guide →
• What is Salicylic Acid? Complete Guide →
• What is Niacinamide? Complete Guide →
• Are Pore Strips Bad for Your Skin? →