Let’s talk reality. Most cosmetic labs have a shelf full of trendy botanical extracts. You test them. They fail stability. Or they turn brown after two weeks in the incubator. We see this constantly. You need ingredients that actually do the work without wrecking the emulsion.
We manufacture active ingredients at Shaanxi Huatai Bio. Our website, glabridinchina.com, ships these materials globally. We skip the magic-potion marketing. We focus on chemistry and formulation reality.
Why do formulators keep returning to licorice root?
Because it works. But only if you select the exact derivative for your specific problem.
The Pigment Blocker: Glabridin
Consumers want even skin tones. They want dark spots gone. You could use hydroquinone, but regulatory teams ban it. You could dump high doses of ascorbic acid into the tank, but oxygen ruins it before the product even hits the shelf.
Enter Glabridin.
It targets the skin’s pigment factory directly. It physically stops the enzyme tyrosinase from doing its job. No enzyme activity means no excess pigment gets made. The skin tone evens out naturally.
But Glabridin is stubborn. Let’s be real about handling it. It absolutely hates water. If you dump it straight into an aqueous phase, it clumps up. You get a cloudy mess. You need to pre-dissolve it in butylene glycol or propylene glycol. Treat the molecule right, and it performs beautifully in serum and cream formats.
Here are the strict parameters you get from our factory floor:
| Specification Item | Glabridin Parameters |
| INCI Name | Glabridin |
| CAS Number | 59870-68-7 |
| Botanical Source | Glycyrrhiza glabra L. |
| Appearance | White to pale yellow powder |
| Purity (HPLC) | 40%, 90%, 98% |
| Solubility | Insoluble in water, soluble in glycols/ethanol |
| Recommended Dosage | 0.05% – 0.2% |
| Main Function | Skin brightening, tyrosinase inhibition |
You don’t need a high percentage. Even at 0.05%, the 90% purity grade does heavy lifting. We control the extraction so you don’t have to worry about batch color variations ruining your pristine white creams.
The Redness Killer: Stearyl Glycyrrhetinate
Skin gets angry constantly. UV rays damage it. Harsh exfoliating acids strip it. Daily friction irritates it. When human skin gets inflamed, the body panics. It triggers more melanin production to protect itself. It is a vicious, endless cycle.
You must break that inflammatory cycle first. Stearyl Glycyrrhetinate handles this specific job.
We took the active calming molecule from licorice and attached a fatty alcohol chain to it. Why do that? To make it crave oil.
The human skin barrier is entirely lipid-based. A water-soluble soothing agent just sits on the surface of the skin doing nothing. An oil-soluble active, like Stearyl Glycyrrhetinate, sinks right down into the lipid matrix. It penetrates deeply.
It melts effortlessly into your oil phase. It stabilizes your lipid formulations. It calms the redness directly at the biological source. It serves as the quiet, reliable worker in the background of your best recovery balms and post-treatment creams.
Check the technical data below:
| Specification Item | Stearyl Glycyrrhetinate Parameters |
| INCI Name | Stearyl Glycyrrhetinate |
| CAS Number | 13832-70-7 |
| Source | Licorice derivative |
| Appearance | White or off-white crystalline powder |
| Purity (HPLC) | ≥ 95.0% |
| Melting Point | 70°C – 77°C |
| Solubility | Oil-soluble, insoluble in water |
| Recommended Dosage | 0.1% – 1.0% |
| Main Function | Anti-inflammatory, barrier repair |
Why Purity is Non-Negotiable
Let’s talk about purity grades. Many suppliers push cheap licorice extracts. They sell dark brown liquids. They smell like roasted syrup. You put them in a pristine lotion, and suddenly your whole batch looks muddy. The marketing team rejects it immediately. Consumers buy with their eyes first.
At glabridinchina.com, we strip out the dead weight.
Our 90% and 98% Glabridin powders are practically white. They don’t mess with your product aesthetic. They don’t carry off-odors that require heavy masking fragrances. You get the active molecule. Nothing else.
The same applies to Stearyl Glycyrrhetinate. The melting point is narrow. 70°C to 77°C. If a supplier gives you a batch with impurities, that melting point fluctuates. Your oil phase becomes grainy. The emulsion breaks a month later on the store shelf. We maintain strict HPLC testing to ensure that ≥95% purity threshold is met every single time. Consistent purity means predictable manufacturing.
Formulation Pitfalls to Avoid
Let’s save your lab some time. Do not expose Glabridin to extreme alkaline environments. Keep your final formula pH between 5.0 and 7.0. It thrives there.
For Stearyl Glycyrrhetinate, watch your lipid ratios. It plays very nicely with squalane, caprylic/capric triglycerides, and standard cosmetic esters. Avoid throwing it into a purely silicone-based system without a bridging solvent. It will just crash out and crystallize.
These are the small technical details that separate a successful product launch from a massive recall.
Putting Them Together in the Lab
So what happens when you combine these two in a single formula?
You tackle the pigmentation problem from both sides of the battlefield. Glabridin shuts down the direct pigment production. Stearyl Glycyrrhetinate puts out the biological inflammation fire that triggers the pigment cascade in the first place.
This isn’t just an abstract theory. This is exactly how you build a functional brightening cream that won’t irritate a sensitive user’s face.
How do you mix it? It takes basic lab discipline.
You dissolve your Stearyl Glycyrrhetinate into your heated oil phase. Keep the temperature around 75°C until the powder melts completely into a clear liquid.
You pre-dissolve your Glabridin in your glycol phase on the side.
You emulsify the main phases. You cool the batch down. You add the Glabridin pre-mix below 45°C to protect it from thermal degradation.
The final result? A highly stable, commercially viable formula.
We extract and synthesize these materials directly at our Shaanxi Huatai facility. No trading companies. No middlemen diluting the stock. You get consistent, repeatable batches every single time you order. Your stability tests will pass. Your end consumers will actually see fewer dark spots and significantly less facial redness.
Cosmetic formulation doesn’t need to be overly complicated. It just requires raw materials that behave predictably in the beaker. Drop the unstable, flashy trends. Stick to the proven plant chemistry that gets the job done. When your R&D team is ready to test a real sample, pull the technical data sheets directly from glabridinchina.com. We have the inventory ready for your next pilot run.