Science
Mechanism of Action
Recoflavone exerts its action through multiple distinct pathways. It demonstrates anti-inflammatory effects by significantly inhibiting the NF-κB pathway and increasing intracellular Ca2+ levels in epithelial cells. This elevation in Ca2+ drives the Ca2+-dependent secretion of various mucins (MUC1, MUC2, MUC4, MUC5AC, MUC5B, MUC16) and mucin-like glycoproteins via P2Y receptor stimulation. Furthermore, Recoflavone promotes epithelial cell migration and supports wound healing through the mTOR pathway, indicating a comprehensive role in tissue repair and protection.
Research
Clinical Evidence
High confidence5-10% (w/v)
Key findings
- 01 In human corneal epithelial cells, concentrations of 100-250 µM increased mucin-like glycoprotein secretion within 24-48 hours.
- 02 At 200 µM, human conjunctival epithelial cells showed significant increases in multiple mucin types (MUC1, MUC2, MUC4, MUC5AC, MUC5B, MUC16) over 24 hours.
- 03 A Phase 3 clinical trial for dry eye disease demonstrated statistically significant improvements in corneal staining scores and favorable results across secondary measures over 12 weeks, confirming both efficacy and safety.
- 04 A concentration range of 5-10% (w/v) is suggested for ophthalmic compositions to maximize symptom improvement and achieve sufficient corneal penetration, with higher concentrations potentially impacting physical properties and cost.
Transparency
Dusting Analysis
As an International Nonproprietary Name (INN) primarily developed and evaluated as a pharmaceutical drug, Recoflavone's usage is typically functional and targeted at efficacious concentrations, rather than being utilized in sub-efficacious 'dusting' amounts within cosmetic formulations.
The Formula
Formulation
Stability
Recoflavone is practically insoluble in water, exhibiting low solubility at acidic pH. Its solubility increases with rising pH due to ionization, though a high degree of ionization may compromise cell permeability and absorption. It exhibits hygroscopicity, which can be mitigated by formulating it in a hydrate form for improved handling and management. Formulations are typically adjusted to a pH between 4 and 8 for stability and efficacy.
Safety
Safety Profile
Recoflavone is an International Nonproprietary Name (INN) primarily undergoing evaluation as a pharmaceutical drug. While Phase 3 clinical trials have confirmed its efficacy and safety for dry eye disease, specific reviews by cosmetic regulatory bodies like CIR (Cosmetic Ingredient Review) or SCCS (Scientific Committee on Consumer Safety) are not available for cosmetic applications. Its specific FDA cosmetic status is also not specified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Recoflavone represents a valuable active due to its scientifically established anti-inflammatory, mucin-stimulating, and barrier-repairing mechanisms, offering significant potential for skin health applications, despite currently lacking dedicated cosmetic safety assessments.
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References
Sources