Something Exciting is Coming

We're working hard to bring you an amazing new experience. Stay tuned for updates!

Launching 2026
Schedule a Call
Botanical Extract · Aqueous Hydroglycerin · Standard or Concentrated

Slippery elm Extract

Ulmus Rubra Bark Extract

Formulate Labs offers Ulmus Rubra Bark Extract in a standard or concentrated hydroglycerin stock, rich in high-molecular-weight mucilage polysaccharides, tannins, and phytosterols. We delineate our cosmetic-grade INCI material from common 'slippery elm' crude powders by emphasizing advanced topical performance and evidence-based functions.

  • Standard or concentrated Ulmus Rubra 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 · 1 kg, 5 kg, and 17 kg
Strength: Standard
Base: Hydroglycerin Extract Full composition
Preservation: Linatural™ MBS-4 INCI breakdown
High-glycerin aqueous stock carrying the selected extract loading - for formulas that want maximum humectancy without propanediol in the deck. 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 %)
Glycerin, Water, Propanediol, Ulmus Rubra Bark Extract, Ethylhexylglycerin, Benzoic Acid
Size: 1 kg Formulation guide
1
Mucilage Polysaccharides
Film-forming biopolymers for barrier support
COA & SDS
Every batch
Cosmetic grade
Aqueous hydroglycerin
Specifications

Everything you need on the technical data sheet.

INCI Name
Ulmus Rubra Bark Extract
Common names
Slippery Elm · Ulmus rubra bark powder
Strength
Standard or concentrated 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
ulmus botanical extract - ulmus hydroglycerin stock Mucilage-rich inner bark for advanced cosmetic formulations.
The extract

The Science of Slippery Elm: Barrier & Biopolymer Benefits

At Formulate Labs, we present Ulmus Rubra Bark Extract, derived from the inner bark of Ulmus rubra, commonly known as slippery elm. While this botanical is often encountered under trade names like 'Ulmus rubra bark powder' or 'slippery elm' in other industries, we provide a sophisticated, cosmetic-grade INCI material specifically formulated for topical applications, rather than crude supplier SKUs.

Dual mechanism: Ulmus Rubra Bark Extract leverages its rich composition of high-molecular-weight mucilage polysaccharides to form a substantive, viscous hydrogel matrix over the stratum corneum upon topical application. This physical barrier effectively traps moisture, enhancing skin hydration, and simultaneously shields the skin from environmental stressors. Additionally, the extract's tannin and bioflavonoid constituents provide localized antioxidant activity, helping to soothe compromised skin by mitigating the effects of inflammatory cascades.

Use levels: - For Formulate Labs' liquid hydroglycerin or propanediol-based extracts, a typical use level ranges from 1.0% to 5.0% in finished formulations.

Market context: - Competitors predominantly market this botanical for the oral dietary supplement and gut-health sectors, often under crude trade names like 'Slippery Elm Inner Bark 10:1'. Supplier marketing frequently relies on historical apothecary narratives and folklore, emphasizing its traditional demulcent properties for soothing wounds and burns rather than its modern biomolecular functions in cosmetics.

We ship standard or concentrated extract stock with selectable preservation - ready to meter into finished formulas at the use rates in the formulation guide below.*

2
Standard / concentrated
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

While often referred to by common (slippery elm) or trade names (Ulmus rubra bark powder), Formulate Labs supplies a cosmetic-grade INCI material.

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.

Supports Skin Barrier*
Its mucilage forms a protective hydrogel matrix, fortifying the skin's natural barrier function against environmental stressors.
Enhances Skin Hydration
The extract's substantive film-forming action effectively traps moisture to significantly improve skin hydration levels.
Antioxidant & Soothing Properties
Rich in tannins and bioflavonoids, it provides localized antioxidant activity, helping to soothe compromised skin.
Natural Film-Forming Biopolymer
High-molecular-weight mucilage polysaccharides create a smooth, invisible film for improved skin integrity.

* 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.

Our understanding of Ulmus Rubra Bark Extract is built upon a foundation of peer-reviewed scientific literature. The research highlights the extract's primary active components, its mechanisms of action in cosmetic applications, and its proven efficacy in supporting skin health and integrity. 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.

2013
Peer-reviewed
Carbohydrate Polymers

Characterization of mucilage polysaccharides from the inner bark of Ulmus rubra and their significant swelling capacity

Archana, G., et al.

This study characterizes the mucilage polysaccharides from the extract, confirming their significant swelling capacity. These properties make it an effective film-forming hydrogel for supporting skin integrity and barrier function.

2014
Peer-reviewed
ImmunoResearch

Validation of antioxidant and anti-inflammatory functions of Ulmus rubra bark extract

Joo, Y.-E.

The research validates the extract's antioxidant and anti-inflammatory functions at a molecular level. It demonstrates the material's ability to help mitigate signs of oxidative stress and soothe skin by downregulating pro-inflammatory markers.

2021
Peer-reviewed
Nutrients

Modern cosmetic application of plant-derived mucilage for creating protective physical barriers on the skin's surface

Dybka-Stępień, K., et al.

This paper highlights the modern cosmetic application of plant-derived mucilage for creating protective physical barriers on the skin's surface. The research also connects these materials to the upregulation of enzymes involved in dermal rejuvenation processes.

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.

Composition

What’s in this hydroglycerin stock.

Bulk composition at the selected Ulmus Rubra Bark Extract loading. Base carrier components scale proportionally when preservative is added; extract stays at the selected loading. Updates dynamically when you change base or preservation above. Full CAS disclosure is on the SDS/TDS for the selected variant (FL-URB-W2-MBS4-5PCT-001).

Water · 46.042% Glycerin · 51.158% Ulmus Rubra Bark Extract · 0.8% Linatural™ MBS-4 · 2%
Water
CAS7732-18-5
Solvent
46.042%
Glycerin
CAS56-81-5
Humectant carrier
51.158%
Ulmus Rubra Bark Extract
CASContact for COA
Starting botanical load 2% · modeled extracted solids, not an assay
Active botanical extract (triterpene-rich)
0.8%
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)
1.0% to 5.0% for liquid hydroglycerin or propanediol-based extracts
pH compatibility
4.5 – 5.1 (stock target; finished-formula pH window per stability data)
Solubility
Highly hydrophilic; readily miscible in water, glycerin, and propanediol systems [6].
Temperature
Avoid prolonged high-temperature phases (>40°C); add during the cool-down phase of formulation to preserve heat-sensitive polysaccharides. Use UV-resistant packaging.
Incompatibilities
Sensitive to strong oxidizers, extreme bases, and high concentrations of electrolytes or cationic polymers, which can precipitate or collapse the polysaccharide gel network [9, 10].
Pairs well with
Self-preserving
Yes - 2% Linatural MBS-4. Boost preservation per your finished-formula needs
Need something different?
Custom extract loading, alternate carriers, bulk sizing, or a regulatory packet - reach out and we’ll quote.

Documentation

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.

Phytochemistry note

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.

Quality & claims

Quality, process, and what we will (and will not) claim.

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 Analysis
What we sell
A made-to-order cosmetic extract stock in 1 kg, 5 kg, and 17 kg. Choose aqueous hydroglycerin (base + preservation) or, where offered, an oil macerate. Strength is Standard or Concentrated. We sell the INCI extract in our carrier - not a supplier trade-name SKU and not a finished leave-on product.
How it is made
We cook the raw botanical powder into the selected hydroglycerin or oil carrier on our robotic platform, then fill to order. Aqueous stocks ship preserved at the system you select. Oil macerates ship anhydrous (no water-phase preservative). Extracted solids on the composition bar are modeled from the starting botanical load - they are not an HPLC assay.
Standard extract QC
  • Organoleptic (all stocks): appearance, odor, consistency
  • Aqueous only: pH (typical 4.5–5.5 for the selected preservative)
  • Aqueous only: TAMC < 100 CFU/g and TYMC < 10 CFU/g (total counts; no pathogen panel)
  • Oil macerates: organoleptic only - no pH, TAMC, or TYMC
Not on the default panel: marker assays, heavy metals, pesticides, residual solvents, or individual pathogen screens. Ask if you need those quoted.
What we can claim
Cosmetic structure/function language only: skin- or hair-conditioning, antioxidant cosmetic stories, and appearance-based well-aging positioning supported by published literature. INCI, composition, SDS/TDS, and a lot COA. Compatible with intended cosmetic use under FDA cosmetic rules and EU 1223/2009 when the finished formula is properly assessed.
What we cannot claim
No disease, treatment, cure, or prevent claims. No ingestible / TCM drug positioning. No guarantee that published pathways will reproduce in your finished formula. Not certified organic, COSMOS, vegan, kosher, halal, or non-GMO unless a separate certificate is issued. We do not sell this as a dietary supplement. We do not name a vendor or country of origin for the incoming powder on this page.
Documents with the order
SDS and TDS for the selected recipe (links above swap with your selection). Sample COA on this page for the standard QC panel. Lot-specific COA ships with every batch. Custom loading, alternate carriers, or a fuller regulatory packet - email materials@formulatelabs.ai.
What exactly ships?
A bulk cosmetic extract stock in 1 kg, 5 kg, or 17 kg. Aqueous lots use Water + Propanediol + Glycerin or classic hydroglycerin, with a selectable preservation system. Oil macerates (where offered) ship in a carrier oil, unpreserved. Botanical INCI is Ulmus Rubra Bark Extract. The finished-product INCI is the full selected deck in descending order. We sell the INCI extract in our carrier, not a supplier trade-name SKU.
How is it made?
We start from the raw botanical powder and cook it into the selected hydroglycerin or oil carrier on our robotic platform, then fill to order. Aqueous stocks ship preserved at the system you select. Oil macerates ship anhydrous (no water-phase preservative). Extracted solids on the composition bar are modeled from the starting botanical load - they are not an HPLC marker assay.
What is on the COA?
Aqueous: appearance, odor, consistency, pH, TAMC < 100 CFU/g, TYMC < 10 CFU/g (total counts only - no pathogen panel). Oil: organoleptic only; no pH, TAMC, or TYMC. The sample COA on this page shows representative passing numbers. Your lot COA carries the real lot number and measurements. Marker assays, heavy metals, pesticides, residual solvents, and individual pathogen screens are not on the default panel. Ask if you need those quoted.
Is this a standardized marker isolate?
No. This is a whole-botanical powder extraction into the selected carrier, not a solvent isolate and not a standardized marker extract unless a separate assay is specified and quoted. Composition percentages for extracted solids are modeled from starting botanical load.
Where is the botanical from, and is the stock certified?
Stock is manufactured to order in Fenton, MO. Incoming botanical powder varies by lot. We do not list a vendor or country of origin on this page. The finished extract stock is not certified organic, COSMOS, vegan, kosher, halal, or non-GMO unless a separate certificate is issued. No fragrance is added. Full deck disclosure is on the SDS for the selected recipe.
What can we claim on a finished formula?
Cosmetic structure/function language only: skin- or hair-conditioning, antioxidant cosmetic stories, and appearance-based well-aging positioning. Published literature is due diligence, not finished-product claim substantiation. Do not claim diagnosis, treatment, cure, or prevention of disease. Do not position this as an ingestible, TCM drug, or dietary supplement.
Lead time and shelf life?
Made to order on our robotic platform. Aqueous target shelf life is 12–18 months at room temperature, 18–24 months refrigerated, preservative-dependent. Oil macerates are similar unopened ranges; protect from light and heat. Use-by on the lot COA governs the batch you receive.
Compliance & safety

The fine print, in plain English.

What it’s for
This material is intended for cosmetic applications. Formulators are responsible for ensuring compliance with all local and regional regulations for the intended market; specific data from safety bodies such as CIR or regional regulatory classifications (e.g., REACH) are not included in this brief.
Claims guidance
Formulate Labs positions Ulmus Rubra Bark Extract as a polysaccharide-rich film-former, barrier support agent, and antioxidant, suitable for advanced skin care formulations.
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, antioxidant, film former, barrier support agent
  • Full blend composition disclosed on SDS/TDS (FL-URB series).
  • Formulators are responsible for ensuring compliance with all local and regional regulations for the intended market.
  • Compatible with FDA cosmetic regulations and EU 1223/2009 for intended cosmetic use when properly incorporated.
Handling
Store in UV-resistant packaging. Add during the cool-down phase of formulation, avoiding prolonged high-temperature phases (>40°C), to preserve heat-sensitive polysaccharides.
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.

1 kg
$147.00
Added to cart View cart →