Clinically Proven Beauty: The Science Behind Nutricosmetics with Prof. Katja Žmitek

Welcome back to another episode of the Nutricosmetics 2030 Show, where we are joined by Professor Dr. Katja Žmitek to discuss the recent publication of one of our clinical studies in the esteemed Journal of Functional Foods.

A double-blind, placebo-controlled, randomized four-way study led by Prof. Žmitek investigated three different formulations produced by Tosla Nutricosmetics. The study was conducted with 109 healthy female participants, all of whom were recruited from Slovenia. The results of the study showed several beneficial effects on skin health. All the test products were able to improve dermis density, reduce wrinkle severity, and improve skin texture.


Professor Dr. Katja Žmitek is focused on research in the area of nutrition and public health, and the influence of nutrients as well as functional foods on health, with a special focus on skin health. She is vice-dean of the VIST Faculty of Applied Sciences (Slovenia), where she leads several modules in BSc and MSc cosmetics programs and is head of the research group at the VIST Institute of Cosmetics. She also holds a research position at the Nutrition Institute (Slovenia). She has authored over 50 contributions in renowned scientific journals and collaborated in or headed several research projects and clinical as well as epidemiological studies in the field of nutrition and health. She has editorial roles in several scientific journals, among others she is an Associate Editor in Frontiers in Nutrition.


00:00 – Introduction

2:47 – What were the objectives of the clinical study

4:45 – The company perspective of the study

6:36 – What were the most important findings of the study

10:45 – Validation of the study for the company

15:20 – Contribution of the results to the broader scientific knowledge

17:45 – How does a clinical study affect product development

19:00 – Collaboration between academia and industry

21:00 – Changes in thinking during the study

26:25 – Are clinical studies biased if they are financed by the industry?

32:20 – Marketing perspectives of clinical studies

26:30 – Conclusion



Nutricosmetics 2030 is an industry-specific content platform started by Tosla Nutricosmetics, including live and online events as well as The Nutricosmetics 2030 Show, a bi-weekly podcast, where we discuss various aspects of their work, from products, development, and science to business and marketing. Whether you’re a professional in the field, a conscious consumer, or just curious about the next big thing in beauty, this podcast is your go-to source for meaningful conversations that matter.

Uroš Gotar is the Chief Innovation Officer at Tosla Nutricosmetics and Matic Batagelj is the company’s marketing advisor.



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