What is yogurt in skincare?
Yogurt is milk fermented by live bacterial cultures, principally Lactobacillus and Streptococcus species. Applied to skin it brings three things: lactic acid produced during fermentation, milk fats and proteins, and the bacterial cultures themselves.
The lactic acid is the part with the clearest mechanism – it is a genuine alpha-hydroxy acid, though at concentrations far below a formulated exfoliant. The cultures connect it to the growing field of probiotics in dermatology.
What skin concerns does yogurt treat?
As a mask it exfoliates very gently, hydrates, and soothes redness and irritation – useful after sun exposure or on skin that cannot tolerate active products. The fats condition dry skin.
The probiotic angle is genuinely promising but still early: research on probiotic lactic acid bacteria and skin health points to effects on the microbiome, barrier function and inflammation, though most evidence comes from formulated products rather than a tub from the fridge.
What ingredients are best paired with yogurt?
In a DIY mask it is traditionally combined with honey, oatmeal or turmeric, all of which reinforce the soothing effect. Use plain, unsweetened yogurt – sugar and fruit add nothing and can irritate.
For reliable results, formulated lactic acid delivers the exfoliation at a known strength, and niacinamide with ceramides handles barrier and tone. Anyone with a dairy allergy should avoid it, and it should be rinsed rather than left on. Take our Skin Quiz.
What are clogged pores?
A clogged pore is a hair follicle blocked by a mix of sebum, dead skin cells and debris. Left open to the air the plug oxidises and darkens into a blackhead; sealed over by skin it becomes a whitehead or closed comedone.
Clogged pores are the starting point of nearly all acne – the microcomedone forms first, and inflammation follows only if bacteria and immune response get involved.
What causes clogged pores?
Excess sebum and abnormal keratinisation are the two mechanics. When the follicle lining sheds cells faster than they can clear, they bind with oil and form a plug.
Comedogenic products (heavy oils, some silicones and waxes), thick makeup worn for long stretches, humidity, sweat left on the skin, hormonal shifts and insufficient cleansing all contribute. So does over-cleansing, which damages the barrier and drives oil production up.
What ingredients are best for clogged pores?
Salicylic acid is the first choice because it is oil-soluble and works inside the pore rather than just on the surface. Glycolic and lactic acid clear the surface layer, and clay masks absorb excess oil weekly.
Retinoids are the most effective long-term fix, because they change how the follicle sheds in the first place. Add niacinamide to regulate sebum and keep the barrier intact, and switch to non-comedogenic, lightweight hydrators. Take our Skin Quiz to find products that will not re-clog you.
