Detailed answer

While allergies to skincare products can lead to skin irritation and other allergic reactions, there is no direct evidence to suggest that they can cause thyroid problems. Thyroid problems are typically caused by hormonal imbalances, genetic factors, or autoimmune disorders. However, it is important to note that certain chemicals found in some skincare products, such as parabens or phthalates, have been associated with disruption of hormonal function. Therefore, it is advisable to choose skincare products that are free from potentially harmful chemicals and consult with a healthcare professional if you suspect any allergic reactions or concerns about thyroid health.