"Peroxide free" in cosmetics refers to the absence of any peroxide compounds in the formulation. Peroxides are chemical compounds that contain an oxygen-oxygen single bond, and they are commonly used in various cosmetic products for their bleaching or oxidising properties. However, some individuals may have sensitive skin or allergies to peroxides, which can cause irritation or adverse reactions.

Advantages :
Firstly, it eliminates the potential risks and side effects associated with peroxide, such as skin irritation and sensitivity. This makes it suitable for individuals with sensitive skin or those prone to allergies. Secondly, peroxide-free cosmetics are often gentler on the skin, providing a more soothing and nourishing experience. They can help maintain the natural moisture balance of the skin, preventing dryness and promoting a healthier complexion. Lastly, peroxide-free products are often considered safer for long-term use, as they do not contain harsh chemicals that may cause damage or weaken the skin over time.

Disadvantages:
peroxide is commonly used in cosmetics as a bleaching agent, so by eliminating it, the product may not be as effective in lightening or brightening the skin or hair. Secondly, peroxide can also act as an antimicrobial agent, helping to prevent the growth of bacteria and fungi in cosmetic products. Without peroxide, the cosmetics may have a shorter shelf life and be more prone to contamination.

Conclusion:
It can be concluded that this label holds considerable importance for consumers who prioritise natural and gentle skincare products. The term "Peroxide free" indicates that the cosmetic product does not contain any form of peroxide, which is a chemical compound commonly used in hair dyes and teeth whitening products. By avoiding peroxide, these cosmetics aim to minimise potential side effects and sensitivities that may arise from its usage.

References:
https://www.cosmetify.com/peroxide-free/
https://www.cosmeticsinfo.org/ingredient/hydrogen-peroxide/