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Article Abstract
This work developed a dual-function supramolecular co-assembly system based on malic acid-derived ionic liquid (BMa) and acetyl hexapeptide-8 (AHP-8) for enhanced anti-aging transdermal delivery. The system alleviates dynamic wrinkles by inhibiting neurotransmitter release and repairs static wrinkles by promoting collagen production. transdermal studies showed that the 24-h cumulative permeation of AHP-8 in BMa/AHP-8 was 3.10 times that of free AHP-8. Molecular dynamics simulations revealed that BMa reduces the free energy barrier for AHP-8 permeation mainly due to the interactions between cations and the lipid matrix. Cellular assays demonstrated that BMa/AHP-8 significantly increased collagen I production by regulating the TGF-β pathway and inhibited acetylcholine release more effectively than AHP-8 alone. Clinical trials indicated that the subjects using the BMa/AHP-8 facial cream experienced a greater reduction in wrinkle number, length, and area after 28 days than those using AHP-8 monotherapy. This research provides a novel transdermal delivery approach for developing non-invasive, highly effective anti-aging cosmetic formulations.
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