Casearia Sylvestris Leaf Extract
Aqueous hydroglycerin extract of Casearia sylvestris leaf. Polar flavonoid glycosides and phenolic acids partition into the water-glycerin phase for antioxidant and skin-conditioning cosmetic positioning. Water-phase compatible - we sell the INCI extract in our stock, not a supplier-branded SKU.*
Casearia sylvestris · polar phenolic extract
Casearia sylvestris is the botanical behind Guacatonga. Formulate Labs ships Casearia Sylvestris Leaf Extract. We do not sell supplier-branded SKUs.*
What extracts: The botanical carries polar flavonoid glycosides and phenolic acids. Those fractions support antioxidant and skin-conditioning cosmetic positioning.*
Use levels: Dose 0.5% to 5.0% of this extract stock in finished formulas - 0.5–2.0% for daily moisturizers, 3.0–5.0% for intensive serums.*
Ready to meter into finished formulas at the use rates in the formulation guide below. Selectable preservation on every variant.*
These attributes are assessments based on the ingredient deck and the supplier information available to us. They are not third-party certifications. Common name (Guacatonga) is cited for formulator context only - our product is the INCI extract in our stock.
Every lot is produced to order in our AI-powered robotic factory. Nothing sits on a warehouse shelf going stale - you get a date-of-manufacture-fresh batch every time.
* Structure/function statements based on published cosmetic in-vitro studies. Not evaluated for, and not intended to, diagnose, treat, cure, or prevent any disease.
Peer-reviewed literature on Casearia Sylvestris documents polar flavonoid glycosides and phenolic acids. Papers below are independent botanical context, not a claim that this stock was the test article. These are independent, third-party papers we link for formulators evaluating mechanism, tolerability, and published panel data. We did not conduct this research and do not guarantee replication in your finished formula.
Peer-reviewed record for this botanical. Cosmetic context only - not a claim that our stock was the test article.
Peer-reviewed record for this botanical. Cosmetic context only - not a claim that our stock was the test article.
Peer-reviewed record for this botanical. Cosmetic context only - not a claim that our stock was the test article.
These citations are provided for informational and formulation-research purposes only. Study designs, concentrations, vehicle systems, and populations vary and may not match the extract stocks on this page. Published results do not constitute FDA or EU cosmetic claim substantiation for your brand. Always review the primary literature and consult your regulatory counsel before making structure/function statements on finished products.
Bulk composition of this Casearia Sylvestris Leaf Extract hydroglycerin stock. Base carrier components scale when preservative is added. Updates when you change base or preservation above. Full CAS disclosure is on the SDS/TDS for the selected variant (FL-CSL-W1-MBS4-5PCT-001).
SDS + TDS are issued per selected recipe. Links swap when you change selections above. A sample COA shows the standard extract QC panel (pH, organoleptic, TAMC/TYMC). Lot-specific COAs ship with every order.
We cook the raw botanical powder into the selected carrier. The botanical carries polar phenolics, flavonoid glycosides, and related extractable fractions. Those markers support antioxidant and skin-conditioning cosmetic stories. This is not a solvent isolate or a standardized marker extract. Lot identity appears on the COA and TDS.
This is a ready-to-use cosmetic extract stock, not a finished consumer product and not a standardized marker isolate. We cook the raw botanical powder into the selected hydroglycerin or oil carrier. Aqueous lots are released on pH, organoleptic, TAMC, and TYMC (total counts only). Oil macerates are released on organoleptic only. A sample COA is on this page; the lot-specific COA ships with the order.
Download sample Certificate of AnalysisStatements contained on this page (including any marked with *) have not been evaluated by the U.S. Food and Drug Administration. This product is a cosmetic raw material and is not intended to diagnose, treat, cure, or prevent any disease.
