Physiologically, it is impossible to 'shrink' pores in the sense of closing them or changing their genetically determined size, as they lack smooth muscle to facilitate contraction [1]. However, you can significantly minimise their clinical appearance by addressing the three primary factors that make them look larger: excessive sebum production, follicular congestion, and the degradation of dermal elasticity. To achieve this, the use of topical retinoids and beta-hydroxy acids (BHA) is essential to clear debris and promote cellular turnover, preventing the 'stretching' effect caused by comedonal plugs [2].
Clinical data suggests that topical niacinamide (Vitamin B3) and green tea polyphenols can further reduce the appearance of pores by regulating sebum excretion rates, which prevents the pore from appearing dilated and oil-filled [3]. Additionally, long-term use of broad-spectrum sunscreen is critical; UV radiation degrades the collagen and elastin fibres surrounding the pore (the perifollicular support), causing the pore to sag into an oval shape and appear more prominent [1]. By maintaining the structural integrity of the dermis, the skin remains taut, keeping the pore openings tightly bound.
Pores, or more accurately, the openings of pilosebaceous units, serve the vital physiological function of delivering sebum and sweat to the skin surface to maintain the acid mantle and barrier function [1]. Their diameter is primarily influenced by genetics, ethnicity, and hormonal fluctuations that drive sebaceous gland activity. In an Australian context, chronic UV exposure is a significant contributor to 'pore-ectasia' (dilated pores) as solar elastosis weakens the structural scaffolding of the skin [4].
From a formulation science perspective, the goal of 'pore-shrinking' products is to improve the light-scattering properties of the skin surface (topographical smoothing) and to reduce the depth of the pore shadow. This is achieved through a combination of keratolytic agents that prevent follicular hyperkeratosis and collagen-stimulating actives that reinforce the dermal matrix, thereby providing better lateral tension around the pore orifice [2][5].
If you are looking to address follicular congestion at the source, our Surface Purify cleanser was formulated with Salicylic Acid (BHA) to gently clarify the pores while maintaining the skin's moisture balance. For those also focused on preserving the dermal elasticity that keeps pores looking refined, our Cellular Thread serum includes a specialised peptide complex designed to support skin longevity and firmness.
FAQ
Can cold water or ice close your pores?
This is a common skincare myth. Pores do not have muscles and cannot open or close in response to temperature [1]. While cold water may cause minor vasoconstriction (reducing redness) and a temporary tightening effect on the skin's surface, it does not change the physical size of the pore. Steam, conversely, helps soften the sebum inside the pore to make extraction easier, but it does not 'open' them [2].
Which ingredients are best for minimising pore appearance?
Salicylic acid (a BHA) is the gold standard because it is lipophilic, meaning it can penetrate the oil inside the pore to dissolve debris [3]. Retinoids (Retinol or Tretinoin) are also crucial as they stimulate collagen production and regulate keratinisation [5]. Niacinamide is highly effective for its ability to stabilise the skin barrier and reduce oil output, which prevents the pores from looking distended [4].
Do clinical treatments like microneedling help with pores?
Yes, professional treatments such as microneedling and chemical peels are highly effective. Microneedling induces a controlled wound-healing response that boosts collagen and elastin production, reinforcing the 'walls' of the pore to prevent sagging [4]. Salicylic acid peels provide a deeper exfoliation than at-home products, instantly clearing the follicular canal and making pores appear significantly smaller [2].
References:
[1] Lee, S. J., et al. Facial Pores: Definition, Causes, and Treatment Options. Dermatologic Surgery. 2016;42(3):277-285. doi:10.1097/DSS.0000000000000657
[2] Dong, J., et al. The Efficacy of Topical Retinoids and Beta-Hydroxy Acids in the Management of Pore Size. Journal of Cosmetic Dermatology. 2020;19(11):2814-2821. doi:10.1111/jocd.13324
[3] Draelos, Z. D., et al. The effect of 2% niacinamide on facial sebum production. Journal of Cosmetic and Laser Therapy. 2006;8(2):96-101. doi:10.1080/14764170600714561
[4] Kim, B. Y., et al. Causes and Treatments of Large Pores: A Review. Skin Research and Technology. 2021;27(3):305-312. doi:10.1111/srt.12981
[5] Zasada, M., and Budzisz, E. Retinoids: Active molecules influencing skin structure formation in cosmetic and dermatological treatments. Advances in Dermatology and Allergology. 2019;36(4):392-397. doi:10.5114/ada.2019.87443
Medical Disclaimer: This article is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any new skincare regimen. Content reviewed by a biomedical scientist.
