Dr Tiina Meder is a medical doctor, cosmetic safety expert and founder of Meder by Dr Tiina Meder skincare brand, with a career in cosmetic dermatology and aesthetic medicine spanning more than 30 years. She specialises in developing safe, science-led topical treatments and has focused on the skin microbiome and peptide-based skincare since launching her first professional treatment in 2009. Her work combines research into active ingredients with non-invasive approaches to skin health.


Since 2018, Dr Meder has pioneered an approach to topical care centred on active skin longevity. She continues to explore how skincare can support the skin’s long-term function and resilience, alongside her work as an author, educator and international conference speaker.