• Source: Z-Cote

Z-Cote is a commercial zinc oxide line manufactured and owned by BASF. Due to Z-Cote's photo-protective properties it is commonly used in personal care products and sunscreens. It is available in nano, non-nano, coated and uncoated forms. Z-Cote is a derivative of zinc oxide which is Generally Recognized As Safe and Effective (GRASE) by the FDA as a nutrient, cosmetic colour additive, skin protection active ingredient and other OTC products. Manufactured zinc oxide, such as Z-Cote, is only recognised as GRASE by the FDA when it is compliant with the Good manufacturing practice (GMP) standard. The original Sunsmart and Submicro Encapsulation Technologies Z-Cote patent filed in 1991 for UV skin protection expired in 2015.




History


Z-Cote was acquired from SunSmart in 1999 by BASF. It has been used in sunscreen formulations since at least 1993 in microfine form. The initial 1991 Z-Cote patent placed emphasis on broad-spectrum protection, especially UVA. Only in 1993 did the FDA approve an alternative petrochemical sunscreen ingredient, avobenzone, that also provided protection against UVA.




Environmental impact






= Plants

=
Z-Cote was studied to evaluate hypothetical agricultural impacts if it were to contaminate irrigated water. In the study it was found that Z-Cote had a negligible impact on bean (Phaseolus vulgaris) pod production and increased root length and the concentration of more nutritional elements.




= Reef

=
Zinc oxide is compliant with Hawaii Act 104 banning non-reef safe petrochemicals.




Zinc oxide producers


Croda International
BASF
Umicore




References

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