What conditions are likely to result in a person with under active sebaceous glands?

Underactive sebaceous glands can result from several conditions, including hormonal imbalances, particularly low androgen levels, which can occur in disorders like hypopituitarism or certain forms of adrenal insufficiency. Additionally, certain skin conditions, such as ichthyosis or eczema, may impair sebaceous gland function. Environmental factors, such as excessive washing or the use of harsh skincare products, can also contribute to reduced sebaceous gland activity. Lastly, aging can naturally lead to decreased sebaceous gland output.