The Bottom Line

You cannot permanently shrink your pores. Pore size is largely determined by genetics and does not change permanently with any skincare product or treatment. However, you can minimize the appearance of pores with consistent skincare habits and certain professional treatments.

Why People Believe This Myth

Many skincare products claim to "shrink" or "close" pores, which has led to a widespread belief that pore size can be permanently altered. Cold water and astringent toners may temporarily tighten skin, giving the illusion of smaller pores. This temporary effect is often mistaken for a lasting change.

What Science Actually Says About Pore Size

Pores are tiny openings in the skin that house hair follicles and sebaceous (oil) glands. Their size is determined primarily by genetics and tends to increase with age. A 2016 study in Clinical, Cosmetic and Investigational Dermatology found that pore size is influenced by three main factors: sebum production, hair follicle volume, and skin elasticity.

Pores do not have muscles, so they cannot open and close like a door. When skin produces excess oil or accumulates dead skin cells, pores may appear larger because debris stretches the pore opening. Sun damage also breaks down collagen around pores, making them look more prominent over time.

What You Can Do to Minimize Pore Appearance

While you cannot change your pore size permanently, several evidence-based strategies can reduce their appearance:

  • Retinoids: Prescription tretinoin and over-the-counter retinol increase cell turnover and boost collagen production, which helps keep pores clear and skin firm. Studies show tretinoin can visibly reduce pore prominence after 12 weeks of consistent use.
  • Niacinamide: This form of vitamin B3 at 2-5% concentration has been shown to reduce sebum production and improve skin texture, making pores appear smaller.
  • Salicylic acid: As a beta-hydroxy acid (BHA), salicylic acid is oil-soluble and penetrates into pores to dissolve debris. Regular use at 0.5-2% helps keep pores clear.
  • Daily sunscreen: UV exposure degrades collagen around pores. Using SPF 30+ daily helps prevent pores from becoming more visible with age.

Professional Treatments That Help

Dermatologists offer treatments that can improve pore appearance, though results require maintenance:

  • Chemical peels: Glycolic acid and salicylic acid peels remove surface buildup and stimulate collagen renewal.
  • Laser resurfacing: Fractional laser treatments stimulate collagen remodeling around pores. Studies show improvement lasting several months to a year.
  • Microneedling: Creates controlled micro-injuries that trigger collagen production, improving overall skin texture including pore appearance.

Frequently Asked Questions

Does ice or cold water close pores?

No. Cold may cause temporary vasoconstriction (tightening of blood vessels), which can briefly make skin appear smoother, but pores do not have muscles and cannot physically open or close.

Can pore strips permanently remove large pores?

Pore strips remove surface-level debris like oxidized oil (blackheads) but do not change pore size. Pores refill with oil within days. Overuse can actually irritate skin and worsen the problem.

Why do my pores look bigger as I get older?

Aging reduces collagen and elastin around pores, causing the skin to lose its supportive structure. Combined with cumulative sun damage, this makes pores appear larger. Consistent sunscreen use and retinoid therapy can slow this process.

Are there any products that actually work for pores?

Products containing retinoids, niacinamide, or salicylic acid have the best evidence for improving pore appearance. Look for consistent, long-term use rather than expecting instant results from any single product.

  1. Lee SJ, et al. "Facial pores: definition, causes, and treatment options." Clinical, Cosmetic and Investigational Dermatology. 2016;9:173-180.
  2. Draelos ZD. "The effect of a daily facial cleanser for normal to oily skin on the skin barrier of subjects with acne." Cutis. 2006;78(1 Suppl):34-40.
  3. Kircik LH. "Efficacy and safety of topical retinoids in the management of photoaged skin." Journal of Drugs in Dermatology. 2012;11(10):s17-s20.