Preservatives and humectants shipped worldwide from Huaibei Anhui China
USP grade humectant for hydration barrier support and texture control
Glycerin is the foundational humectant of personal care. It attracts and retains moisture, improves skin hydration and barrier function, and optimises product texture, while also serving as a solvent and viscosity modifier. Anhui Xiwe supplies USP pharmaceutical grade material at 99.5 percent purity and above, with heavy metals held to 1 ppm or less and microbial control that complies with USP and EP pharmacopeial standards.
CAS 56-81-5 Moisturizing and Hydrating Ingredients
Purity of 99.5 percent or above with heavy metals at 1 ppm or less removes the methanol and heavy metal risk that industrial-grade glycerin carries into a cosmetic line.
It does not only draw water, it improves barrier function, which is what turns a moisture claim into a measurable result.
As a solvent and viscosity modifier it lets you adjust flow and body without adding another functional ingredient.
Skin care, hair care, oral care, soap bars and preservative-boosted systems all take the same raw material, which simplifies purchasing.
| Purity | 99.5 percent and above, USP pharmaceutical grade |
|---|---|
| Heavy metals | 1 ppm or less, for example lead |
| Microbial control | Complies with USP and EP pharmacopeial standards |
| Appearance | Colourless, odourless, viscous liquid |
| CAS No. | 56-81-5 |
|---|---|
| Purity | 99.5 percent minimum, USP pharmaceutical grade |
| Heavy metals | 1 ppm maximum |
| Microbial control | Complies with USP and EP standards |
| Appearance | Colourless, odourless, viscous liquid |
| Typical use level | 5 to 15 percent in leave-on products |
| Packaging | 25 kg drum, 50 kg drum |
We partner only with manufacturers that have proven track records and modern facilities. Certificates of Analysis are provided for every shipment, and products are produced to meet relevant standards such as ISO, USP and EP where applicable.
The manufacturer is audited before the first order, not after a complaint.
Every shipment carries a Certificate of Analysis tied to the lot you receive.
MSDS/SDS, Certificate of Origin and the commercial and transport documents travel with the goods.
Safety information above comes from the product documentation for Glycerin (Glycerol). Confirm every limit against the regulation in force in your destination market before you commit a formulation to production.
| Option | Behaviour | Best suited to |
|---|---|---|
| Glycerin | Humectant, solvent and viscosity modifier at 5 to 15 percent | Core hydration across every wet format |
| 1,2-Hexanediol | Humectant with mild preservation, non-sticky | Light textures and clean-label preservation |
| Ethylhexylglycerin | Conditioner and booster at 0.3 to 1.0 percent | Skin feel and preservative performance |
| Industrial grade glycerin | May contain methanol or heavy metals | Not suitable for cosmetic or pharmaceutical use |
Drum sizes listed in the specification table, or packaging as per customer request.
Document pack prepared for your destination market, whether EU, United States or China NMPA.
For blended systems, the ratio can be discussed against the formulation you are preserving.
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Moisture claims that survive substantiation and sensory panels
Supplier audit batch testing and the document pack that clears customs
Where glycerin helps, where it reverses and dries skin, and why the grade on the CoA matters more than the price per drum.
Comparison ArticleOne is a capped broad-spectrum preservative, the other a multifunctional humectant with mild preservation. The difference decides your label claim as much as your shelf life.
USP pharmaceutical grade at 99.5 percent purity and above, with heavy metals at 1 ppm or less and microbial control complying with USP and EP standards.
Standard concentrations are 5 to 15 percent in leave-on products, the range recognised as safe by the FDA and EFSA.
Yes, in specific conditions. In low-humidity environments below 40 percent relative humidity, concentrations above 70 percent can pull moisture from the skin. Pair glycerin with occlusives or polysaccharides for dry-climate markets.
Irritation potential is low and allergic reactions are rare, with an incidence below 1 percent. Avoid pairing it with AHAs or BHAs above 10 percent if the target user has reactive skin.
Yes. Oral care is one of its listed applications, and the USP and EP compliance is what makes that possible.
Packaging is 25 kg and 50 kg drums. Shelf life is stated on the Certificate of Analysis issued for the batch you receive.
Send the grade, the annual volume, the packaging you prefer and the destination market. Pricing and the document pack come back within 24 hours.