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 dark spots?
Dark spots are localised patches where the skin has produced more melanin than the surrounding area. The umbrella term covers sun spots, post-acne marks, melasma patches and freckles – different causes, same visible result.
They are flat rather than raised, vary from light tan to deep brown, and are most noticeable on the face, hands and chest. In deeper skin tones they tend to be darker and to last considerably longer.
What causes dark spots?
Two mechanisms dominate. Ultraviolet exposure triggers protective melanin production, and inflammation – from acne, ingrown hairs, eczema, friction, burns or harsh treatments – leaves post-inflammatory hyperpigmentation behind as it heals.
Hormonal change, some medications and heat add to it. Picking at spots is one of the most avoidable causes: the extra inflammation reliably makes the mark darker and longer-lived than the original blemish.
What ingredients are best for dark spots?
Vitamin C, niacinamide and azelaic acid are the everyday workhorses. For stubborn pigment, alpha arbutin, tranexamic acid, kojic acid and liquorice root extract interrupt melanin production directly.
Retinoids and gentle AHAs clear pigmented cells faster from the surface. Give any routine twelve weeks before judging it, and wear broad-spectrum SPF daily or the spots will simply redarken. Take our Skin Quiz.
