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| Catalog Number | CI-SC-0116 |
| Product Name | Zinc Oxide, USP |
| CAS | 1314-13-2 |
| Structure |  |
| Description | Produced from naturally occurring zinc ore, super purity (free from other metals). Particle size 200-1000 nanometer (nm) or 0.2-1 micrometer (µm). |
| Solubility | Insoluble but dispersible in water and oils |
| Appearance | White powder, odorless |
| Application | Sun care & after-sun products, soothing skin care products, diaper creams, mineral makeup. |
| Storage | Store light-protected at a cool and dry place |
| Composition | Zinc oxide |
| Features And Benefits | USP GradeReflects sunlight (UVB rays)Has soothing effects and can be used for skin irritationsWhitening effect on skin therefore also used as coverage for makeup products |
| GMO | GMO-free (does not contain plant-derived components) |
| HS Code | 2817000000 |
| INCI | Zinc oxide |
| Manufacture | Zinc oxide is produced from metallic zinc which is melted in a graphite crucible and vaporized at high temperatures (around 1000 °C). Zinc vapor reacts then with the oxygen in the air to give zinc oxide. |
| Preservation | Preservative-free |
| Purity Grade | USP Grade |
| Raw Material Source | Metallic zinc |
| Uses | Can be added to formulas as is, recommended concentration 5-25%. Maximum allowed: USA 25%, Japan no limit. Can be combined with other sun screens & pigments. For external use only. |
What is Zinc Oxide, USP, and what are its primary uses?
Zinc Oxide, USP, is a natural white powder derived from the mineral zincite. It is widely used in various skincare and cosmetic products due to its beneficial properties, including its role as a natural sunscreen offering broad-spectrum protection against UVA and UVB radiation. Additionally, Zinc Oxide possesses anti-inflammatory and antimicrobial properties, making it effective for treating and preventing acne, soothing irritated skin, and promoting wound healing.
How does Zinc Oxide, USP, protect the skin from the sun?
Zinc Oxide serves as a strong, natural sunscreen. It provides broad-spectrum protection by effectively reflecting and scattering UVA and UVB rays, which helps prevent sunburn and long-term sun damage. Its mineral nature means it acts as a physical barrier on the skin, offering immediate protection upon application.
What are the additional benefits of Zinc Oxide, USP, in skincare products?
Besides its sun-protective properties, Zinc Oxide offers several skincare benefits. It works as an anti-inflammatory and antimicrobial agent, which can help treat and prevent acne and other skin conditions. Moreover, it provides a matte finish and evens out skin tone when used in makeup products like foundations and powders.
Is Zinc Oxide, USP, safe for all skin types?
Yes, Zinc Oxide is generally considered safe for most skin types as it is non-toxic, non-comedogenic, and suitable for sensitive skin due to its gentle nature. However, as with any cosmetic ingredient, it's advisable to perform a patch test to ensure no allergic reactions occur, especially for individuals prone to skin sensitivities.
Is Zinc Oxide, USP, environmentally friendly?
Indeed, Zinc Oxide is an environmentally friendly choice in skincare formulations. It is biodegradable, vegan, and halal. Its use in sunscreens is preferred over synthetic alternatives, which can harm marine ecosystems, especially coral reefs.
How is Zinc Oxide, USP, produced, and what determines the quality of the final product?
Zinc Oxide is produced by heating the mineral zincite to high temperatures to vaporize the mineral, followed by oxidizing the vapor to create Zinc Oxide particles. The quality and properties of the final product can be adjusted by controlling the particle size during this process, thereby producing different grades of Zinc Oxide suitable for various applications in skincare and cosmetics.
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