Item No.: ZLEY®Quaternium-73
CAS No.: 15763-48-1
Appearance: Yellow crystalline powder
Recommended dosage: 0.001-0.05%
Solubility: Soluble in alcohol, suggest pre-dissolved it with propylene glycol, butanediol, and pentanediol by a water bath
Application: Cosmetic grade

Quaternium-73 is commonly used in over-the-counter (OTC) drugs in Japan as an acne treatment ingredient.
It has a strong antibacterial activity (Destroy bacterial fungal cell membrane, Propionibacterium acnes has excellent effect).

It also can inhibit the production of melanin, Powerful but extremely safe, and widely used for acne, whitening, and freckle removal products.

1. Acne inhibitors with antibacterial activity;
2. It can be used as a kind of preservative to kill bacteria, staphylococcus, and Escherichia coli powerfully, better than Nipergin esters; In addition, it can inhibit the production of melanin.
3. Clinical studies have shown that the erythra can be reduced by 50% after two weeks of use on Bacillus acnes(mic=0.00002%); When the dosage was 0.1ppm, the production of melanin was completely inhibited, which was better than kojic acid.
4. Powerful but high safety, good thermal stability, keep stable in the range of ph5.5 to 8.0; Low dosage and high cost-effectiveness.

Technical Indicators:
Inspection Items Technical Index
Appearance Yellowish to yellow crystalline powder
Water contents (KF) NMT 1.0%
Purity (HPLC) NLT 98.0%


1. Soluble in alcohol, suggest pre-dissolved it with propylene glycol, butanediol, and pentanediol by a water bath.
2. Suitable for all kinds of skincare products, recommended for oil control, and acne products.

Packaging and Storage:
◆Packaging: Aluminum film bag (lined with polyethylene plastic bag); 1 kg/bag.
◆Storage: Please store it in a cool and dry place and the shelf life is 2 years.