Aspalathus Linearis Leaf Extract · 5% aqueous hydroglycerin stock
Aspalathus Linearis Leaf Extract from Formulate Labs delivers standardized levels of aspalathin and nothofagin in a fixed 5% hydroglycerin stock. Unlike generic Aspalathus linearis leaf powder or red bush tea, our extract is precisely formulated for cosmetic efficacy.
The Red Bush Tea plant, source of potent flavonoids.
Botanical Identity: Aspalathus Linearis Leaf Extract, also known as Rooibos Leaf Extract, is derived from the South African red bush plant. While it may be known in broader contexts as Aspalathus linearis leaf powder or red bush tea, Formulate Labs supplies the pure INCI ingredient, not generic supplier-specific SKUs.
Dual mechanism: Aspalathus Linearis Leaf Extract functions as a potent antioxidant and skin-soothing agent. Its primary mechanism is driven by its unique flavonoid content, particularly aspalathin, which neutralizes reactive oxygen species (ROS) and helps mitigate the cellular effects of UVB exposure on skin cells. A compelling cosmetic mechanism is its demonstrated ability to inhibit protein glycation. By preventing the glycation-induced cross-linking of structural proteins like collagen and elastin, the extract helps preserve the skin's biomechanical properties, supporting a firm, elastic, and well-structured dermal matrix.
Use levels: When using Formulate Labs' 5% hydroglycerin stock of Aspalathus Linearis Leaf Extract, typical efficacious use levels in finished formulations range from 1.0% to 3.0%. For intensive, targeted treatments, levels up to 10.0% of the stock are stable and can be incorporated.
Market context: Aspalathus Linearis Leaf Extract is positioned as a premium, multi-functional botanical active, competing with other high-performance antioxidants and anti-inflammatory agents. Competitors offer distinct market positions: Greentech Tealine-class actives focus on free-radical scavenging and photo-aging; Lipoid Kosmetik Rooibos Herbasec-class actives are marketed for soothing inflamed, blemish-prone, and sensitive skin; and Symrise Neo Actipone Organic Rooibos-class actives are highlighted for *in vitro* MMP-1 inhibition, anti-irritant properties, and hair color protection.
Pricing context: Public B2B pricing data for standardized *Aspalathus Linearis* Leaf Extract suspensions shows significant variability. While basic oil-dispersible extracts are priced around $21.55 per pound in drum quantities, specialized liquid fractions can scale from $6.50 to $35.00 per ounce. Formulate Labs' pricing for its standardized hydrophilic suspension is structured at $578.00 for a 500 g sample, $890.00 for a 1 kg lab/pilot batch, and $755.00/kg for a 17 kg production pail.
We ship a fixed 5% extract blend with selectable preservation - ready to meter into water-phase formulas at the use rates in the formulation guide below.*
The Formulate Labs ingredient is the specified INCI (Aspalathus Linearis Leaf Extract), distinct from generic raw material descriptions (Aspalathus linearis leaf powder, red bush tea).
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 scientific literature underscores the cosmetic efficacy of Aspalathus Linearis Leaf Extract, particularly in its antioxidant, anti-inflammatory, and anti-glycation mechanisms, providing a strong basis for its inclusion in advanced skincare formulations. 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.
This paper demonstrates that green *Aspalathus linearis* extract effectively reduces reactive oxygen species and modulates key inflammatory pathways like cyclooxygenase-2, supporting its use in soothing formulations that help skin recover from environmental stressors and support dermal repair processes.
This research establishes the extract's significant anti-inflammatory activity, showing a reduction in IL-8 secretion and prevention of prostaglandin E2 hypersecretion, providing a mechanism for its calming effect on the skin, making it a valuable ingredient for products targeting visible redness and irritation.
This study indicates the extract's ability to down-regulate macrophage M1 polarization and decrease pro-inflammatory cytokines like TNFα and IL-6, cosmetically positioning the extract as an effective agent for managing inflammatory responses and soothing compromised or sensitive skin.
These citations are provided for informational and formulation-research purposes only. Study designs, concentrations, vehicle systems, and populations vary and may not match the hydroglycerin 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 at fixed 5% Aspalathus Linearis Leaf Extract loading. Base carrier components scale proportionally when preservative is added; extract stays at 5%. Updates dynamically when you change base or preservation above. Full CAS disclosure is on the SDS/TDS for the selected variant (FL-ASL-W1-MBS4-5PCT-001).
SDS + TDS are issued per base and preservative combination. Links swap when you change selections above. COA is batch-specific and ships with the order.
Statements 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.
