This unique blend of prebiotics, probiotics, and lactic acid offers anti-aging benefits for sensitive skin. The Youthful Serum provides intense hydration, stimulates cell renewal, and reduces signs of aging. For which skin type is the product suitable? Suitable for all skin types - from dry to normal to very sensitive skin. What effect does the wording have? 62% more moisture after 8 hours.** 85% agree that the product nourishes the skin in the long term.** 76% agree that the skin becomes softer and is protected from environmental influences.* *Consumer test with 23 people over 56 days under dermatological supervision.**Instrumental test with 12 test subjects. How do the main ingredients work? PROBIOTICS: Deactivated bacteria from the Lactobacillus family (a major component of the lactic acid bacteria group). These probiotics are extremely gentle on the skin and help support the protective barrier of the microbiome. PREBIOTICS: A blend of ultra-soft fibers and sugars that nourish the skins good bacteria, thus supporting the skin barrier. LACTIC ACID: Lactic acid, the gentlest form of AHAs, helps the skin achieve its optimal pH balance, provides intense hydration, and leaves the skin appearing smoother. Gallinée uses a slow-release form that is also suitable for sensitive skin. pH VALUE: All Gallinée products are manufactured to match the optimal pH value of the skin and microbiome. This is particularly important for gentle skin cleansing. FERN EXTRACT: Gallinée uses a special polysaccharide, derived from fern, to help the skin appear firmer and lifted due to its prebiotic effect and unique properties. POSTBIOTICS: A powerful, extremely skin-friendly Lactococcus ferment that supports the skin microbiome and stimulates skin renewal. Application Apply to a cleansed face in the morning or evening. The Youthful Serum can be used alone as a first step on a cleansed face, as it has a water-based texture and is very easily absorbed by the skin. Alternatively, it can be mixed with the Universal Face Cream for a booster effect.