Probiotics
Probiotics are live beneficial bacteria and yeasts that help support the skin’s natural microbiome. In skincare they are used to balance the skin’s ecosystem, strengthen its defences and promote a healthier-looking complexion. Popular in creams, serums and masks, they are a favourite ingredient for sensitive and stressed skin.
How it works in skincare
In cosmetic formulations probiotics work by helping to maintain the delicate balance of microorganisms that live on the skin’s surface. When applied topically they can support the skin barrier, limit the growth of unwanted bacteria and encourage a calmer, more resilient complexion. UK formulators often pair them with prebiotics or postbiotics to enhance their soothing and protective effects in daily moisturisers, serums and gentle cleansing products.
Key benefits
- Helps strengthen the skin barrier
- Supports a balanced skin microbiome
- Calms and soothes sensitive skin
- Improves skin resilience against environmental stress
- Promotes a smoother, healthier-looking complexion
- Helps reduce the appearance of redness
Best for
sensitive skin, dry skin, mature skin, stressed skin, acne-prone skin
Where it comes from
While probiotics used in skincare are often laboratory-cultured strains of beneficial bacteria such as Lactobacillus, their natural source is fermented foods and the human microbiome. In cosmetics they are typically derived from controlled fermentation of plant-based sugars or milk-derived cultures.