Hydrating Ingredients Explained | Skin Barrier Science, Glycerin vs. Hyaluronic Acid & How to Truly Hydrate Dry Skin

Does drinking more water actually hydrate your skin? Is hyaluronic acid really the gold standard for hydration? And what does your skin barrier have to do with dry, dehydrated skin?In this episode of Facially Conscious, esthetician Trina Renea is joined by dermatologist Dr. Vicki Rapaport and cosmetic scientist Rebecca Gadberry to break down the science of skin hydration. Together, they clarify the difference between dry skin and dehydrated skin, explain how the skin barrier regulates moisture, and examine why some popular hydrating ingredients don’t always perform the way social media suggests.You’ll learn why drinking water alone doesn’t automatically improve skin hydration, how humectants like glycerin and hyaluronic acid actually function, and why glycerin may be one of the most effective — and overlooked — hydrating ingredients in skincare. The conversation also explores transepidermal water loss (TEWL), barrier repair, occlusives, and the proper way to approach techniques like slugging.If you feel confused about hydrating serums, moisturizers, barrier creams, or the best routine for dry or dehydrated skin, this episode offers grounded, evidence-based skincare guidance rooted in dermatology, cosmetic chemistry, and professional esthetics.Topics include:Dry skin vs dehydrated skinThe skin barrier and moisture retentionHyaluronic acid benefits and limitationsWhy glycerin is a powerful humectantDrinking water and skin hydration mythsOcclusives, emollients, and humectants explainedSlugging for barrier repairHow to build a hydration-focused skincare routineThis is thoughtful, science-backed skincare education designed to help you understand how hydration really works — so you can make informed decisions without chasing trends.Have a question? Send us an email at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠[email protected]⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠LIKE, FOLLOW & REVIEW US ON ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠INSTAGRAM⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, & WHERE YOU LISTEN TO ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠PODCASTS⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠!Visit our website ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.faciallyconscious.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Linktree | Facially Conscious⁠⁠⁠Join our new Patreon and ⁠⁠⁠⁠⁠⁠Substack⁠⁠⁠⁠⁠⁠ for more content from Facially ConsciousFollow Our Hosts On Instagram⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Trina Renea⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ - Medically-trained master esthetician and celebrities’ secret weapon⁠⁠⁠Linktree | Trina Renea⁠⁠⁠, @trinareneaskincare, ⁠⁠⁠trinarenea.com⁠⁠⁠ and Substack⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Julie Falls⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠- Our educated consumer is here to represent you! @juliefdotcomDr. Vicki Rapaport⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ -Board Certified dermatologist with practices in Beverly Hills and Culver City @rapaportdermatology and ⁠⁠⁠https://www.rapdermbh.com/⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Rebecca Gadberry⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ - Our resident skincare scientist and regulatory and marketing expert. @rgadberry_skincareingredientsCreditsProduced and Recorded by The Field Audio⁠thefieldaudio.com