Best Supplements for Improved Skin Barrier Function
Ranked by research evidence. Compare 4 supplements across 14 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Low evidence6 studies
Across 5 studies, all 5 reported beneficial effects on skin barrier function, with predominantly small effect sizes. One meta-analysis found a statistically significant small effect on trans-epidermal water loss, but its relevance to Lactobacillus brevis SBC8803 is uncertain as the analysis focused on polyphenols. The evidence base is limited to reviews and a single meta-analysis, with no consistent dose or duration data reported.
- Low evidence4 studies
Across 4 studies, all reported beneficial effects on skin barrier function, with effect sizes ranging from small to moderate (two studies each). The most robust evidence comes from a 2025 review showing significant improvement in skin moisturization and reduced transepidermal water loss after 4 weeks of Lactobacillus rhamnosus lysate consumption. No specific dose, form, or population data were consistently reported across studies.
- Low evidence3 studies
Across 3 studies, all reported beneficial small-sized effects on skin barrier function. Only 1 of these studies achieved statistical significance. The evidence is limited to two small RCTs and one review, with no consistent dose or form reported.
- LowLactobacillus brevis SBC8803Across 5 studies, all 5 reported beneficial effects on skin barrier function, with predominantly small effect sizes. One meta-analysis found a statistically significant small effect on trans-epidermal water loss, but its relevance to Lactobacillus brevis SBC8803 is uncertain as the analysis focused on polyphenols. The evidence base is limited to reviews and a single meta-analysis, with no consistent dose or duration data reported.6 beneficial6 studies
- LowLactobacillus rhamnosusAcross 4 studies, all reported beneficial effects on skin barrier function, with effect sizes ranging from small to moderate (two studies each). The most robust evidence comes from a 2025 review showing significant improvement in skin moisturization and reduced transepidermal water loss after 4 weeks of Lactobacillus rhamnosus lysate consumption. No specific dose, form, or population data were consistently reported across studies.4 beneficial4 studies
- LowLactobacillus sakei proBio65Across 3 studies, all reported beneficial small-sized effects on skin barrier function. Only 1 of these studies achieved statistical significance. The evidence is limited to two small RCTs and one review, with no consistent dose or form reported.3 beneficial3 studies