Skin vitamin deficiencies can manifest in a number of ways, including dry, dull, or flaky skin, as well as wrinkles, fine lines, and other signs of aging. Some of the most common vitamin deficiencies that can affect the skin include:

Vitamin a: a deficiency in vitamin a can cause dry, scaly, and itchy skin, as well as wrinkles and age spots.

Vitamin b: a deficiency in vitamin b can cause dry, flaky, and itchy skin, as well as eczema and psoriasis.

Vitamin c: a deficiency in vitamin c can cause dry, rough, and discolored skin, as well as wrinkles and age spots.

Vitamin d: a deficiency in vitamin d can cause dry, itchy, and flaky skin, as well as eczema and psoriasis.

Vitamin e: a deficiency in vitamin e can cause dry, flaky, and itchy skin, as well as wrinkles and age spots.

Vitamin k: a deficiency in vitamin k can cause the skin to appear bruised and purple, which can also lead to eczema, psoriasis, and other skin problems.