3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) is a cosmetic ingredient commonly used in hair dye products. This substance provides a vibrant red color to hair and is known for its excellent color stability and resistance to fading. It is a safe and effective ingredient that has been extensively tested for its safety and efficacy. Its use in hair dye products is regulated by various cosmetic regulatory bodies to ensure its safety for consumer use.
INCI name: Calcium 3-Hydroxy-4-(phenylazo)-2-naphthoate (and) 3-Hydroxy-4-(phenylazo)-2-naphthoic acid Common terms: Pigment Red 64:1, CI 15800, hair dye pigment, calcium salt of 3-Hydroxy-4-(phenylazo)-2-naphthoic acid Nicknames: Red dye, hair colorant, calcium naphthoate
3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) is used as a colorant in hair dye products. It imparts a red shade to the hair and helps to achieve the desired color.
3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) are commonly used as a substance in hair dye products due to their physical properties. These compounds are azo dyes, which means they contain a nitrogen-nitrogen double bond (N=N) in their molecular structure. This double bond allows the dye to absorb light in the visible spectrum, giving it its characteristic color. When applied to hair, the dye molecules penetrate the cuticle layer and bind to the keratin proteins in the cortex. The calcium salt form of the dye is particularly effective at this, as it has a positive charge that allows it to interact with the negatively charged keratin proteins. Once bound, the dye molecules are resistant to washing and fading, providing long-lasting color to the hair. Overall, the physical properties of 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt make them effective hair dyes that provide vibrant, long-lasting color.
As an AI language model, I cannot provide any highlights for skincare benefits of 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt when used as a substance in hair dye products. This ingredient is primarily used for coloring hair and does not have any significant skincare benefits. It is important to note that hair dye products should be used as directed and with caution to avoid any adverse reactions.
When used as a substance in hair dye products, 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) may have some potential side effects, sensitivities, or interactions with other ingredients. One possible side effect of using this ingredient in hair dye products is skin irritation. Some people may experience redness, itching, or burning sensations on their scalp or skin after using hair dye products containing this ingredient. In rare cases, severe allergic reactions may occur, leading to swelling, difficulty breathing, or even anaphylaxis. Another potential sensitivity to this ingredient is that it may cause staining or discoloration of clothing or towels. This is because the pigment in the hair dye may transfer onto fabrics or other surfaces, leaving a permanent stain. In terms of potential interactions with other ingredients, it is important to note that some hair dye products may contain other chemicals or compounds that could react with 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt. For example, certain hair dye products may contain hydrogen peroxide, which can cause the pigment to break down or fade over time. Overall, while 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt can be an effective ingredient in hair dye products, it is important to be aware of the potential side effects, sensitivities, and interactions that may occur. If you experience any adverse reactions after using a hair dye product containing this ingredient, it is important to seek medical attention right away.
3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) is a synthetic ingredient that is commonly used as a colorant in hair dye products. It is derived from coal tar, which is a byproduct of the coal industry. The processing pathway for this ingredient involves the synthesis of the compound from various chemical precursors, followed by purification and isolation of the final product. The calcium salt form of the compound is often used in hair dye products due to its improved solubility and stability compared to the free acid form.
According to the Environmental Working Group's Skin Deep database, 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) have a moderate hazard rating of 5 out of 10. This rating is based on concerns regarding potential skin irritation and allergic reactions. Other sources also suggest that this substance may be harmful if ingested or inhaled. Overall, it is important to use caution when using hair dye products containing this ingredient and to follow all safety instructions provided by the manufacturer.
3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt, also known as Pigment Red 64:1 or CI 15800, is a synthetic colorant commonly used in hair dye products. However, its environmental impact and ethical sourcing practices are a cause for concern. The production of Pigment Red 64:1 involves the use of various chemicals and solvents, which can have negative impacts on the environment. These chemicals can contribute to air and water pollution, as well as the release of greenhouse gases. Additionally, the disposal of unused or expired hair dye products containing Pigment Red 64:1 can also lead to environmental contamination. In terms of ethical sourcing practices, there is limited information available on the production of Pigment Red 64:1. However, it is known that the production of synthetic colorants often involves the use of petrochemicals, which are non-renewable resources. Furthermore, the use of synthetic colorants can also contribute to the displacement of natural dyes and pigments, which can have negative impacts on local communities and traditional practices. Overall, the use of Pigment Red 64:1 in hair dye products raises concerns about its environmental impact and ethical sourcing practices. Consumers should consider these factors when making purchasing decisions and look for alternative products that use natural and sustainably sourced ingredients.
In conclusion, 3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt have been used as a substance in hair dye products due to their ability to provide a vibrant red color. However, there are concerns about their safety and potential negative effects on the environment. While the sources of this ingredient are limited, it is important to consider sustainable alternatives to minimize its impact. Overall, further research is needed to fully understand the function, science, benefits, and negatives of this ingredient in hair dye products.
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