Let’s Talk Nutrition With Nico: Inside the Billion-Dollar Beauty-From-Within Market and the Claims Behind It

The beauty-from-within category has expanded rapidly in recent years, and the numbers back that up. On the latest episode of “Let’s Talk Nutrition With Nico,” Nicholas Saraceno, senior editor of Nutritional Outlook, told Lana Pine, senior editor of The Educated Patient, that the global nutricosmetics market is projected to grow from around $8.1 billion this year to $18 billion by 2036. Collagen remains the category’s anchor, with ceramides and omega fatty acids trailing as the next growth segments, but Saraceno noted the framing has shifted from collagen alone to a broader system that includes gut health.

The Gut-Skin Connection Gains Traction

That gut-skin link has shown up across multiple outlets, Saraceno said, pointing to reporting from his colleague Sebastian Krawiec and from NewBeauty. In that coverage, Jennifer Martin-Biggers, Ph.D., vice president of scientific affairs and education at HUM Nutrition, described a real connection between gut health, mood and skin, calling it a core part of any beauty regimen rather than an afterthought. Another expert cited in the same reporting pointed to specific strains, including Lactobacillus paracasei and Lactobacillus rhamnosus GG, with research behind them for skin inflammation and acne.

Why Strain-Specific Claims Matter

Christina Vegge, vice president of research and development at Probi, added mechanistic detail, explaining that gut microbiome metabolites, including short-chain fatty acids and amino acid derivatives, can enter the bloodstream and influence skin barrier integrity, inflammation and cellular aging. Her broader point, Saraceno said, is that the field is shifting away from broad probiotic claims toward strain-specific interventions with measurable skin outcomes.

Regulators Are Paying Closer Attention

That shift is drawing regulatory interest too. Saraceno said the FTC and European Commission are scrutinizing terms like “microbiome-friendly” or “postbiotic-powered” when they aren’t backed by real clinical substantiation. For manufacturers, he said, the takeaway is that specific claims, such as skin elasticity or microbiome benefits, require clinical data tied to the actual finished product, not general science borrowed from elsewhere in the category.