Quick Answer
Niacinamide Skin Hydration Randomized Trial has evidence relevant to strength of evidence and what the studies can or cannot prove, but conclusions should stay close to the cited sources. One representative finding is: Its pathophysiology involves a deficiency in essential stratum corneum lipids such as ceramides, cholesterol, and free fatty acids, together with reduced levels of natural moisturizing factors (NMFs) and increased TEWL [,].
Key Takeaways
- 01Its pathophysiology involves a deficiency in essential stratum corneum lipids such as ceramides, cholesterol, and free fatty acids, together with reduced levels of natural moisturizing factors (NMFs) and increased TEWL [,]. [Morgado‐Carrasco Daniel (2026)]
- 02While conventional management typically relies on basic emollients and cutaneous hydration [,], there is a growing need for multi‐active formulations that facilitate functional barrier enhancement and address associated symptoms such as pruritus. [Morgado‐Carrasco Daniel (2026)]
- 03On the treated leg, baseline values (33.8 ± 0.8 μS; 95% CI: 32.2–35.4) increased by 16.9% (39.5 ± 0.9 μS; 95% CI: 37.7–41.3) at T7 and 21.6% (41.1 ± 0.8 μS; 95% CI: 39.5–42.7) at T28, both statistically significant in comparison to baseline and to the untreated control ( < 0.05). [Morgado‐Carrasco Daniel (2026)]
- 04The stratum corneum (SC) exhibits a distinctive “bricks and mortar” structure, with protein‐rich corneocytes embedded within a matrix of intercellular lipids [,,]. [Morgado‐Carrasco Daniel (2026)]
The current Migaku evidence database contains 1 reusable source document for Niacinamide Skin Hydration Randomized Trial. This answer focuses on strength of evidence and what the studies can or cannot prove.
- Its pathophysiology involves a deficiency in essential stratum corneum lipids such as ceramides, cholesterol, and free fatty acids, together with reduced levels of natural moisturizing factors (NMFs) and increased TEWL [,]. [Morgado‐Carrasco Daniel (2026); evidence level 2]
- While conventional management typically relies on basic emollients and cutaneous hydration [,], there is a growing need for multi‐active formulations that facilitate functional barrier enhancement and address associated symptoms such as pruritus. [Morgado‐Carrasco Daniel (2026); evidence level 2]
- On the treated leg, baseline values (33.8 ± 0.8 μS; 95% CI: 32.2–35.4) increased by 16.9% (39.5 ± 0.9 μS; 95% CI: 37.7–41.3) at T7 and 21.6% (41.1 ± 0.8 μS; 95% CI: 39.5–42.7) at T28, both statistically significant in comparison to baseline and to the untreated control ( < 0.05). [Morgado‐Carrasco Daniel (2026); evidence level 2]
- The stratum corneum (SC) exhibits a distinctive “bricks and mortar” structure, with protein‐rich corneocytes embedded within a matrix of intercellular lipids [,,]. [Morgado‐Carrasco Daniel (2026); evidence level 2]
Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording.
This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.
Sources