Hydroxypropyl Tetrahydropyrantriol (Pro-Xylane): C-Xylose Derivative for GAG Synthesis and Skin Firmness
Hydroxypropyl Tetrahydropyrantriol (CAS 439685-79-7), commercially recognized as a Pro-Xylane type active, is a C-glycoside derivative of xylose. Despite being classified alongside peptide actives in many supplier catalogs, this is a sugar derivative — not a peptide — that stimulates glycosaminoglycan (GAG) production in dermal fibroblasts. At 3% concentration, it increased GAG synthesis by 52% in human fibroblast cultures over 7 days. TCS NEXUS S.L. supplies this ingredient at high purity from our warehouse in Valencia, Spain.
Mechanism: Stimulating the Dermal Extracellular Matrix
The dermal extracellular matrix depends on a balanced network of collagen fibers, elastin, and glycosaminoglycans (hyaluronic acid, chondroitin sulfate, dermatan sulfate). GAGs function as the hydration reservoir of the dermis, binding up to 1000 times their weight in water and maintaining the turgor pressure that underlies visible skin plumpness. With age, GAG production by fibroblasts declines approximately 1-2% per year after age 30, contributing to dermal thinning and loss of firmness.
Hydroxypropyl Tetrahydropyrantriol works by providing a xylose-derived substrate that stimulates the xylosyltransferase pathway — the initiating step of GAG chain biosynthesis on proteoglycan core proteins. The C-glycosidic bond (carbon-carbon linkage between the sugar and the hydroxypropyl group) makes the molecule resistant to glycosidase hydrolysis, ensuring it reaches fibroblasts intact rather than being cleaved at the skin surface.
Performance Data and Clinical Context
In vitro, 3% Hydroxypropyl Tetrahydropyrantriol increased total GAG production by 52% versus untreated controls in cultured human dermal fibroblasts (7-day incubation, DMMB assay). The compound also showed a 28% increase in type VII collagen expression (the anchoring fibril collagen at the dermal-epidermal junction), suggesting dual activity on both the hydration matrix and the structural anchoring network.
Clinical studies on finished formulations containing this active at 3% have reported measurable improvements in skin firmness (up to 16% improvement by cutometry at 8 weeks) and reductions in wrinkle depth measured by profilometry. These results position Hydroxypropyl Tetrahydropyrantriol as a credible anti-aging active with a clear, published mechanism of action.
Formulation Guidelines
Use at 1-5% in the aqueous phase of emulsions. Hydroxypropyl Tetrahydropyrantriol is fully water-soluble and stable across pH 3.5-8.0. Heat-stable up to 80 degrees C, so it can be added to the hot water phase without degradation. Compatible with all standard emulsifier systems, carbomer gels, and cellulose-based rheology modifiers.
Synergistic combinations include hyaluronic acid (complementary hydration at different molecular weights), retinol (collagen stimulation), and peptide actives such as Palmitoyl Tripeptide-1 (TGF-beta pathway activation). For a comprehensive anti-aging serum, combine at 3% with multi-molecular-weight HA at 1% and niacinamide at 5% in a lightweight aqueous gel.
European Supply
TCS NEXUS S.L. stocks Hydroxypropyl Tetrahydropyrantriol in Valencia, Spain. EU delivery in 5-7 business days. Full technical dossier available including Certificate of Analysis, safety data sheet, and formulation guidelines. Free samples for product development. Contact us for pricing and bulk availability.
Technical Support and Samples
Request COA documents, sample availability, or support for custom synthesis.
Frequently Asked Questions
Do you provide COA documents for Pro-Xylane Supplier Europe?
Yes. Each lot can be supplied with a Certificate of Analysis, HPLC purity data, and relevant quality-control results for technical review.
Are samples available for Pro-Xylane Supplier Europe?
Yes. Sample availability can be confirmed for formulation screening and internal evaluation before a commercial order is placed.
What is the delivery lead time for Pro-Xylane Supplier Europe?
For stocked material in Valencia, EU delivery is typically 5 to 7 business days. Final timing depends on destination and requested volume.
Do you also support custom synthesis and technical inquiries?
Yes. The team can help with custom synthesis, raw-material selection, technical documentation, and supply planning.