Whiteheads are small, flesh-colored or white bumps that form when a pore gets clogged with dead skin cells and oil, then stays sealed over by a thin layer of skin. They’re one of the most common forms of acne, technically called closed comedones, and they can show up on the face, forehead, chin, chest, and back. Unlike deeper, inflamed pimples, whiteheads sit just below the skin’s surface and don’t usually hurt.
How Whiteheads Form
Your skin is covered in tiny pores, each connected to a hair follicle and an oil gland. Those glands produce sebum, a natural oil that keeps your skin moisturized. Problems start when dead skin cells don’t shed properly and instead mix with sebum inside the pore. This creates a plug. If the pore stays closed over the top, the trapped material remains white or skin-colored because it’s never exposed to air. That sealed bump is a whitehead.
The protein keratin plays a role here too. Keratin is a structural protein in your skin, hair, and nails. When your body produces it abnormally or in excess, it can accelerate the clogging process by making skin cells stickier and harder to shed from inside the pore.
Whiteheads vs. Blackheads
The difference between a whitehead and a blackhead comes down to one thing: whether the pore is open or closed. A blackhead is an open comedone. The plug of dead skin and oil sits in a pore that’s open to the surface, exposing it to air. That exposure triggers oxidation and allows melanin (the pigment in your skin) to accumulate, turning the plug dark brown or black. A whitehead stays sealed, so no oxidation occurs and the bump keeps its lighter color. Neither type is caused by dirt.
What Causes Them
Hormones are the biggest driver. Androgens, a group of hormones that includes testosterone, directly stimulate your oil glands to produce more sebum. You don’t necessarily need high androgen levels for this to happen. Some people simply have oil glands that are more sensitive to normal hormone levels, which is why two people with identical hormone profiles can have very different skin. Androgens also promote excess skin cell turnover inside the follicle itself, contributing to the plug that starts a whitehead.
This hormonal connection explains why whiteheads are so common during puberty, around menstrual cycles, and during pregnancy. Insulin and insulin-like growth factor also increase sebum production, which is one reason high blood sugar levels and hormonal shifts can trigger breakouts at the same time. Stress hormones play a supporting role as well: cortisol stimulates oil-producing cells to multiply, and the adrenal stress hormone ACTH boosts androgen production.
Does Diet Matter?
The link between diet and whiteheads is less clear-cut than social media suggests. High-glycemic foods (white bread, sugary drinks, processed snacks) cause rapid spikes in insulin, which can theoretically stimulate both oil production and skin cell overgrowth inside pores. Some studies have found modest improvements in acne on low-glycemic diets, but the evidence is mixed. One controlled trial found that facial acne improved by about 26% on a low-glycemic diet and 16% on a high-glycemic diet, but the difference between the two groups wasn’t statistically significant. The researchers noted that weight loss in the low-glycemic group, rather than the carbohydrate type itself, may have explained the improvement. Diet likely plays a supporting role for some people, but it’s not a primary cause for most.
Why You Shouldn’t Pop Them
It’s tempting to squeeze a whitehead, but doing so usually makes things worse. When you press on a closed comedone, you often push the clogged material deeper into the skin rather than out, triggering a larger inflammatory response. That can turn a minor bump into a red, swollen lesion that takes much longer to heal.
The risks go beyond temporary redness. Squeezing with fingernails or unsterilized tools creates small tears in the skin that can become entry points for bacteria. This can cause infection (look for increasing redness, warmth, pus, or fever) and spread bacteria to neighboring pores, creating new breakouts. Hyperpigmentation, where the skin darkens at the site of trauma, is especially common in darker skin tones after aggressive squeezing. Permanent scarring is also possible, particularly from excessive force or repeated picking at the same spot.
Treatments That Work
Because whiteheads are non-inflammatory (no redness or swelling), they respond well to topical treatments that target the clogging process itself. The American Academy of Dermatology recommends several options for comedonal acne, and most are available over the counter or by prescription.
Retinoids are considered the cornerstone treatment. They work by normalizing how skin cells behave inside the pore, reducing the overgrowth that creates plugs and loosening the bonds between cells so they shed more easily. Retinoids don’t just clear existing whiteheads. They also prevent the formation of microcomedones, the microscopic precursors to all acne lesions. Over-the-counter options include adapalene (the most widely available retinoid without a prescription), while stronger formulations require a dermatologist’s guidance.
Salicylic acid is a good starting point if you’ve never treated whiteheads before. It’s a beta-hydroxy acid that penetrates into pores and dissolves the mix of oil and dead cells. You’ll find it in cleansers, toners, and leave-on treatments, typically at concentrations between 0.5% and 2%.
Benzoyl peroxide primarily targets bacteria and inflammation, but it also has mild effects on clogged pores and is often used alongside a retinoid for broader coverage. Azelaic acid is another option that reduces abnormal skin cell buildup and works well for people who find retinoids too irritating.
One important note on timing: most topical treatments take at least six to eight weeks of consistent use before you’ll see noticeable improvement. It’s common for skin to look slightly worse in the first few weeks as deeper clogs work their way to the surface. Sticking with treatment through that initial phase is essential, and many people use these products for months or years to keep whiteheads from returning.
Preventing New Whiteheads
Prevention overlaps heavily with treatment. A consistent routine using a retinoid or salicylic acid keeps pores clear over time, not just during a breakout. Beyond active ingredients, the products you layer onto your skin matter. Look for moisturizers, sunscreens, and makeup labeled non-comedogenic. This term means the product has been tested and shown to increase pore clogging by less than 50% compared to a baseline, though standards vary between manufacturers.
Washing your face twice a day with a gentle cleanser removes excess oil without stripping the skin barrier, which can actually trigger more oil production. Avoid scrubbing or using harsh exfoliants on whitehead-prone areas. Physical scrubs can irritate the skin and worsen clogging. If you wear hats, helmets, or rest your chin on your hands frequently, the friction and pressure can trap oil and dead cells against the skin, a pattern dermatologists call acne mechanica.
For persistent whiteheads that don’t respond to over-the-counter products after two to three months, a dermatologist can offer prescription-strength retinoids, hormonal treatments (for those whose breakouts are clearly cycle-related), or professional extractions done with sterile instruments and proper technique.