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Botanical Extract · Aqueous Hydroglycerin · 5% Loading

White Willow Bark Extract

Salix Alba Bark Extract · 5% aqueous hydroglycerin stock

Formulate Labs' Salix Alba Bark Extract, a fixed 5% hydroglycerin stock, offers gentle exfoliation and soothing benefits from its natural salicin, polyphenols, and flavonoids. Distinct from trade names like White Willow or Willow Bark, we deliver the pure INCI active.

  • Fixed 5% Salix Alba Bark Extract in Water + Propanediol + Glycerin Extract or Hydroglycerin Extract base
  • Four preservation systems - 8 recipes total, all made-to-order
  • COA + SDS + TDS per base/preservative variant · 500 g to 17 kg
Base: Water + Propanediol + Glycerin Extract Full composition
Preservation: Linatural MBS-4 INCI breakdown
Aqueous stock with water, propanediol, and glycerin carrying 5% botanical extract. Balanced humectancy with propanediol solubilization - default for not specified in report serums and toners. Preserved with Linatural MBS-4 at 2%.
Target pH
4.5 – 5.1
Shelf life (RT · cold)
12–18 mo · 18–24 mo
Final INCI deck (this stock, ordered by %)
Water, Propanediol, Glycerin, Salix Alba Bark Extract, Propanediol, Ethylhexylglycerin, Benzoic Acid
Size: 500 g Formulation guide
1
White Willow Bark Extract
Natural BHA Precursor
COA & SDS
Every batch
Cosmetic grade
Aqueous hydroglycerin
Specifications

Everything you need on the technical data sheet.

INCI Name
Salix Alba Bark Extract
Common names
White Willow Bark · Willow Bark · Salix Alba
Loading
5% extract in hydroglycerin stock
Solubility
Aqueous / water phase
Appearance
Amber to brown aqueous fluid
pH (bulk material)
4.5 – 5.1
Add at
Cool-down < 40–45 °C
Shelf Life
12–18 mo RT · 18–24 mo refrigerated
salix botanical extract - salix hydroglycerin stock Botanical source of Salix Alba Bark Extract
The extract

The Story of Salix Alba Bark Extract

Botanical Identity: Formulate Labs provides Salix Alba Bark Extract, a water-soluble extract from the bark of the White Willow tree. Often recognized by trade names like White Willow, Willow Bark, or Salix Alba, Formulate Labs supplies the pure INCI ingredient, ensuring formulators receive the standardized active without proprietary blends.

Dual mechanism: Salix Alba Bark Extract functions as a biomimetic, non-irritating alternative to synthetic salicylic acid, providing gentle exfoliation through its natural salicin content, a beta-hydroxy acid (BHA) precursor that refines skin texture and unclogs pores. Additionally, its native polyphenols and flavonoids offer potent antioxidant and soothing benefits by neutralizing reactive oxygen species and downregulating inflammatory mediators. It also demonstrates antimicrobial activity against *Cutibacterium acnes* and stimulates hyaluronic acid synthesis for hydration.

Use levels: For Formulate Labs' 5% hydroglycerin stock of Salix Alba Bark Extract, recommended use levels range from 0.5% – 10.0%, with specific concentration advised based on the targeted cosmetic function, such as lower levels for soothing effects or higher levels for keratolytic benefits.

Market context: Salix Alba Bark Extract is a foundational ingredient for gentle, natural actives in exfoliation, soothing, and blemish control. While competitors like ABS White Willow Bark Extract-class, TRIKENOL™ PLUS-class, and Herbapurifine®-class actives market specific stories or proprietary blends, Formulate Labs focuses on providing the pure, high-quality INCI active in an easy-to-use liquid carrier for maximum formulation flexibility.

Pricing context: Based on analysis of the category for specialized, standardized cosmetic-grade botanical extracts in liquid suspension, Formulate Labs' pricing for this 5% hydroglycerin stock is $117.00 for a 500g sample, $180.00 for 1kg, and $2,601.00 for a 17kg pail ($153.00/kg).

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.*

5%
Fixed extract loading
2
Hydroglycerin bases
4
Preservation options
Aqueous
Water-phase compatible
Ingredient deck assessment

What this material is and isn’t.

Botanical
Leaf/stem extract; pentacyclic triterpene saponins
Aqueous stock
Hydroglycerin carrier; water phase
Cruelty-free
No animal testing in our process
Cosmetic grade
For professional formulation use

Formulate Labs offers the pure INCI ingredient, Salix Alba Bark Extract, distinct from specific trade-marketed formulations (White Willow, Willow Bark, Salix Alba).

Made to Order

Built fresh on our robotic platform.

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.

01
Order placed
You pick a size and quantity. We confirm specs against your formulation if you have one.
02
Robotic production
Your inputs go in. We process, blend, and fill sealed packaging - all inside our AI-powered robotic factory.
03
Batch QC + COA
Every batch is tested for actives, pH, micro, and appearance. A batch-specific COA, SDS, and TDS ship with the order.
Why formulators reach for it

Science-backed cosmetic positioning.

Gentle Exfoliation
Natural salicin acts as a BHA precursor, refining skin texture and helping to unclog pores without irritation.
Calming & Soothing
Native polyphenols and flavonoids downregulate inflammatory mediators, reducing visible signs of irritation.
Blemish Control*
Demonstrated antimicrobial activity against Cutibacterium acnes, supporting blemish-prone skin formulations.
Hydration & Anti-Aging
Stimulates hyaluronic acid synthesis to support skin hydration and microcirculation, improving radiance and reducing roughness.

* Structure/function statements based on published cosmetic in-vitro studies. Not evaluated for, and not intended to, diagnose, treat, cure, or prevent any disease.

Published research

Peer-reviewed literature for due diligence.

Formulate Labs' Salix Alba Bark Extract is supported by robust peer-reviewed literature detailing its efficacy in various cosmetic applications, including anti-aging, soothing, and improving skin appearance. 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.

2023
Clinical & In-vitro Study
Not provided in report

Not provided in report

Not provided in report

In clinical and in-vitro evaluations, a 2% concentration of the extract was shown to improve the appearance of infraorbital dark circles. This effect is linked to its ability to support skin microcirculation and stimulate hyaluronic acid synthesis, which helps maintain vascular integrity.

2015
Review/Analysis
Not provided in report

Not provided in report

Not provided in report

This analysis confirms the extract’s ability to soothe skin is due to the synergistic action of its native salicin and polyphenol content. These components work together to downregulate key inflammatory mediators, supporting its use in calming and conditioning formulations.

2010
Clinical Study
Not provided in report

Not provided in report

Not provided in report

A 12-week clinical study on a formulation containing 0.5% salicin demonstrated significant cosmetic improvements in key signs of aging. Subjects experienced visibly reduced tactile roughness and pore size, along with enhanced skin radiance and overall appearance.

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.

Composition

What’s in this hydroglycerin stock.

Bulk composition at fixed 5% Salix Alba Bark 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-SAB-W1-MBS4-5PCT-001).

Water · 58.737% Propanediol · 24.474% Glycerin · 9.789% Salix Alba Bark Extract · 5% Linatural™ MBS-4 · 2%
Water
CAS7732-18-5
Solvent
58.737%
Propanediol
CAS504-63-2
Humectant / solubilizer
24.474%
Glycerin
CAS56-81-5
Humectant carrier
9.789%
Salix Alba Bark Extract
CAS84082-82-6
Active botanical extract (triterpene-rich)
5%
Linatural MBS-4
Multifunctional preservative
2%
Inside Linatural MBS-4
Propanediol
CAS504-63-2
1.7%
Ethylhexylglycerin
CAS70445-33-9
0.2%
Benzoic Acid
CAS65-85-0
0.1%
Formulation guide

Built for chemists who sweat the details.

Typical use rate (this stock)
0.5% – 10.0%
pH compatibility
4.5 – 5.1 (stock target; finished-formula pH window per stability data)
Solubility
Highly water-soluble; strictly recommended for addition to the aqueous phase.
Temperature
Thermally stable up to 70°C–80°C; add during the cool-down phase for best practice. Sensitive to light, requires UV-protected packaging.
Incompatibilities
Avoid use with strong oxidizing agents. May exhibit haziness or instability with certain anionic thickeners (e.g., Carbomer) if not properly neutralized.
Pairs well with
Not specified in report
Self-preserving
Yes - 2% Linatural MBS-4. Boost preservation per your finished-formula needs

Documentation

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.

Need something different?
Custom extract loading, alternate carriers, bulk sizing, or a regulatory packet - reach out and we’ll quote.
Compliance & safety

The fine print, in plain English.

What it’s for
A widely used botanical ingredient in cosmetics, positioned as a gentle, non-irritating alternative to synthetic salicylic acid, suitable for a broad range of skin types. Formulators should consult local and regional regulations.
Claims guidance
Claims Guidance: Can support claims related to gentle exfoliation, skin soothing, anti-aging, blemish control, and improving skin texture and radiance. Avoid therapeutic or drug claims.
Storage
  • Store tightly closed, protected from light and heat.
  • Refrigeration optional for extended shelf life per TDS.
  • Aqueous botanical - monitor for color shift over time.
Regulatory
  • Finished-product INCI lists components in descending order per the selected variant deck.
  • Cosmetic function: skin conditioning agent, gentle exfoliation, antioxidant, soothing agent, antimicrobial
  • Full blend composition disclosed on SDS/TDS (FL-SAB series).
  • Compatible with FDA cosmetic regulations and EU 1223/2009 for intended cosmetic use when properly incorporated.
Handling
Store in UV-protected containers away from direct light. Add to the water phase or during the cooling phase of an emulsion for optimal integration and stability.
Questions
Documentation, regulatory, or custom sizing - email materials@formulatelabs.ai.

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.

500 g
$117.00
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