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Botanical Extract · Aqueous Hydroglycerin · 5% Loading

Milk thistle Extract

Silybum Marianum Fruit Extract · 5% aqueous hydroglycerin stock

Discover Formulate Labs' Silybum Marianum Fruit Extract, a dual-action active supplied as a fixed 5% hydroglycerin stock. Rich in the potent flavonolignan complex silymarin, with its primary component silibinin, this extract offers significant antioxidant defense and acts as a plant-derived retinol alternative, distinguishing itself from raw powders or generic silymarin-rich thistle materials.

  • Fixed 5% Silybum Marianum Fruit 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 age-support and blemish-prone skin 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, Silybum Marianum Fruit Extract, Propanediol, Ethylhexylglycerin, Benzoic Acid
Size: 500 g Formulation guide
1
Silybum Marianum
Silymarin-Rich Extract
COA & SDS
Every batch
Cosmetic grade
Aqueous hydroglycerin
Specifications

Everything you need on the technical data sheet.

INCI Name
Silybum Marianum Fruit Extract
Common names
Milk Thistle · Silybum marianum seed/fruit powder · silymarin-rich thistle
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
silybum botanical extract - silybum hydroglycerin stock Extract of Milk Thistle fruit
The extract

Unlocking the Dual Power of Milk Thistle Extract

Formulate Labs offers Silybum Marianum Fruit Extract (INCI: Silybum Marianum Fruit Extract), derived from Milk thistle. While commonly known through trade names like Silybum marianum seed/fruit powder or silymarin-rich thistle, we focus on providing our standardized INCI material rather than specific supplier SKUs, ensuring consistent cosmetic efficacy.

Dual mechanism: Silybum Marianum Fruit Extract is a dual-function active, primarily offering potent antioxidant protection by neutralizing reactive oxygen species (ROS) and mitigating UV-induced oxidative damage. Cosmetically, it functions as a plant-derived retinol alternative, supporting skin's structural integrity by inhibiting elastase and collagenase, and as a sebum-regulating agent to clarify blemish-prone skin by modulating sebaceous stem cell differentiation and curbing lipid peroxidation.

Use levels: For typical applications, incorporate this 5% hydroglycerin stock at 0.1% – 1.0%. Higher performance can be achieved by scaling up to 5% based on specific formulation needs.

Market context: Silybum Marianum Fruit Extract is a versatile active that effectively competes in both age-support and blemish control categories. It provides a unique, plant-derived alternative to synthetic retinoids, offering a favorable tolerability profile. Market analysis shows competing actives such as Celyscence™-class for senotherapeutics, Silymarin-class for UV photodamage mitigation, and NATpharma™-class emphasizing botanical purity and antioxidant defense.

Pricing context: While public B2B pricing for standardized raw herbal powder (80% silymarin) ranges from $15 – $40 per kg, specific B2B data for highly refined cosmetic-grade hydroglycerin suspensions remains sparse. Formulate Labs' pricing for our optimized cosmetic suspension of Silybum Marianum Fruit Extract reflects its refined quality and consistent performance.

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 provides Silybum Marianum Fruit Extract by INCI name, distinct from market-specific trade names (Silybum marianum seed/fruit powder, silymarin-rich thistle).

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.

Advanced Antioxidant Shield
Potently neutralizes reactive oxygen species (ROS) and mitigates UV-induced oxidative damage to protect against visible photoaging.
Retinol Alternative*
A plant-derived active that supports skin's structural integrity by inhibiting collagenase and elastase, visibly improving fine lines and wrinkles.
Blemish & Oil Control
Helps clarify blemish-prone skin by modulating sebaceous stem cell differentiation and curbing lipid peroxidation.
Highly Tolerable
Clinical studies confirm its excellent safety profile, making it a well-tolerated option for various skin types.

* 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.

Peer-reviewed literature strongly supports the cosmetic efficacy of Silybum Marianum Fruit Extract. Clinical studies have demonstrated its benefits across key areas, including significant anti-wrinkle efficacy as a retinol alternative and its effectiveness in maintaining homeostasis for acne-prone skin by modulating sebaceous processes. 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.

2024
Clinical Study
Journal of Cosmetic Dermatology

A highly tolerable Silybum marianum fruit extract as a retinol-like and bakuchiol-outperforming ingredient

See journal record

In a clinical setting, this extract demonstrated significant anti-wrinkle efficacy by stimulating collagen III and hyaluronic acid, performing as a highly tolerable retinol alternative that outperformed bakuchiol.

2023
Clinical Study
Journal of Personalized Medicine

Silybum marianum fruit extract (SILIPHOS®) for the physiological homeostasis of acne-prone skin: a 12-month observational study

See journal record

A long-term study confirmed that topical use helps maintain balance in acne-prone skin by modulating sebaceous stem cell differentiation, leading to a substantial reduction in the appearance of microcomedones.

2023
Clinical Study
Journal of Cosmetic Dermatology

Silybum marianum fruit extract in the management of acne: a real-world, 1-year experience

See journal record

A large-scale trial involving 4,230 patients validated the extract's excellent safety profile and confirmed its effectiveness in significantly lowering global acne severity grades in a real-world setting.

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% Silybum Marianum Fruit 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-SIM-W1-MBS4-5PCT-001).

Water · 58.737% Propanediol · 24.474% Glycerin · 9.789% Silybum Marianum Fruit 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%
Silybum Marianum Fruit Extract
CASContact for COA
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)
0.1% – 1.0% for typical applications, scalable up to 5% for enhanced performance.
pH compatibility
4.5 – 5.1 (stock target; finished-formula pH window per stability data)
Solubility
The native silymarin complex is lipophilic, but Formulate Labs' optimized stock carriers allow for easy dispersion into the aqueous phase.
Temperature
Incorporate below 40°C during cool-down; do not exceed 80°C. Protect finished products from prolonged UV exposure.
Incompatibilities
Avoid use with strong oxidizing agents. May impart a natural yellow or brown tint at higher concentrations.
Pairs well with
Not specified in the 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
Formulated for use in cosmetic products targeting age-support, wrinkle appearance reduction, and the management of blemish-prone and oily skin.
Claims guidance
Guidance for cosmetic claims include: Antioxidant protection, Retinol alternative properties, Supports skin's structural integrity, Helps reduce the appearance of fine lines and wrinkles, Sebum-regulating benefits, Helps clarify blemish-prone skin, and Promotes skin homeostasis.
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: antioxidant, skin conditioning agent, sebum regulating agent
  • Full blend composition disclosed on SDS/TDS (FL-SIM series).
  • Supported by real-world clinical data, demonstrating safety for topical cosmetic use in over 4,000 patients.
  • Compatible with FDA cosmetic regulations and EU 1223/2009 for intended cosmetic use when properly incorporated.
Handling
Handle with care due to sensitivity to heat and light. Incorporate during the cool-down phase below 40°C, and ensure final formulation pH is between 3.5 and 6.5. Protect finished products from direct, prolonged UV exposure.
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
$165.00
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