Vitamin D deficiency effects on skin
Pro Research Analysisby 
Searched over 200M research papers
Vitamin D Deficiency and Skin Health
Vitamin D is essential for the health of many body systems, including the skin. Deficiency in vitamin D is common worldwide and has been linked to a range of skin problems and diseases 123.
Effects of Vitamin D Deficiency on Skin Diseases
Psoriasis, Atopic Dermatitis, and Inflammatory Skin Conditions
Vitamin D deficiency is associated with a higher risk of inflammatory skin diseases such as psoriasis and atopic dermatitis. Research shows that vitamin D helps regulate skin cell growth, immune responses, and the skin barrier. Low levels of vitamin D can worsen these conditions, and supplementation has been shown to improve symptoms in some patients 234.
Acne
People with acne are more likely to have vitamin D deficiency compared to those without acne. Lower vitamin D levels are linked to more severe acne, especially with more inflammatory lesions. Supplementing vitamin D in deficient individuals can lead to noticeable improvement in acne symptoms 25.
Hidradenitis Suppurativa
Vitamin D deficiency is very common in patients with hidradenitis suppurativa, a chronic inflammatory skin disease. Studies show that lower vitamin D levels are linked to more severe disease, and supplementation may help improve clinical outcomes. Vitamin D’s role in immune regulation and inflammation is thought to be important in this condition .
Dermatoporosis and Skin Aging
Vitamin D is important for maintaining skin structure and function as people age. Deficiency can contribute to dermatoporosis, a condition of fragile, thinning skin seen in older adults. Vitamin D supports collagen production, skin barrier function, wound healing, and helps protect against sun damage .
Vitamin D and General Skin Health
Vitamin D is involved in many skin processes, including cell growth, differentiation, and immune defense. Deficiency can disrupt these processes, making the skin more vulnerable to infections, inflammation, and delayed healing 12346. Maintaining normal vitamin D levels is especially important for people with chronic skin diseases or those who avoid sun exposure .
Conclusion
Vitamin D deficiency negatively affects skin health and is linked to a higher risk and severity of several skin diseases, including psoriasis, atopic dermatitis, acne, hidradenitis suppurativa, and dermatoporosis. Ensuring adequate vitamin D levels may help prevent or improve these conditions and support overall skin health 1234567.
Sources and full results
Most relevant research papers on this topic