Xylitol – Plant-based moisturizer for a strong skin barrier

Xylitol is a natural sugar alcohol derived from plant sources such as birch, corn, or beechwood. Known as a sweetening ingredient in foods, xylitol also plays a significant role in modern skincare: it moisturizes, strengthens the skin barrier, and supports a balanced skin microbiome – all without synthetic additives.

How xylitol works in the skin

In cosmetic formulations, xylitol acts as a humectant . It attracts water from deeper skin layers and the surrounding environment and binds it in the stratum corneum, making the skin appear smoother and plumper. Studies show that xylitol also stimulates lipid production and promotes ceramide synthesis—key mechanisms for a healthy, resilient skin barrier. ( Korponyai C. et al., Acta Derm Venereol 2017 )

Scientifically proven benefits

• Long-lasting moisture: Xylitol improves water retention in the epidermis and significantly reduces transepidermal water loss (TEWL). ( Ouwehand A. et al., Encyclopedia 2021 )
• Strengthening the skin barrier: Studies have shown that xylitol stimulates ceramide production and strengthens the structure of the stratum corneum. ( Masako et al., Molecules 2021 )
• Microbiome protection: Xylitol has a selective antimicrobial effect, inhibiting pathogenic germs such as S. aureus or C. acnes while simultaneously supporting beneficial skin bacteria. ( Korean J. Microbiol 2023 )
• Synergy with other humectants: In combination with glycerin or trehalose, xylitol improves long-term hydration and skin elasticity. ( Lodén M. et al., MDPI 2022 )

Why xylitol is so effective

Xylitol doesn't just work on the surface; it also influences the skin's biological structure. It supports the formation of natural moisturizing factors (NMF) and helps reorganize the lipid structure of the stratum corneum. This makes the skin more resistant to external irritants and keeps it hydrated long-term. Unlike many synthetic moisturizers, xylitol is mild, non-irritating, and completely biodegradable.

Conclusion

Xylitol is far more than a natural sugar: In skincare, it demonstrates a scientifically proven multiple effect – hydration, barrier building and protection of the microbiome. With its high skin compatibility and sustainable origin, xylitol fits perfectly into the concept of modern luxury natural cosmetics such as NATURFACTOR® – for nourished, elastic and visibly revitalized skin.

Sources

1. Korponyai C. et al. – Effects of Glycerol and Xylitol on the Hydration and Barrier Function of the Skin, Acta Derm Venereol 2017
2. Ouwehand A. et al. – Xylitol's Benefits to Skin, Encyclopedia 2021
3. Masako et al. – Propanediol (and) Caprylic Acid (and) Xylitol as a Cosmetic Ingredient, Molecules 2021
4. Korean Journal of Microbiology 2023 – Evaluation of Xylitol as an Agent for Controlling Skin Microbes
5. Loden M. et al. – Humectants and Skin Hydration Mechanisms, MDPI 2022

Tags: xylitol, birch sugar, moisture, skin barrier, microbiome, natural cosmetics