1 of 12

VITAMIN D & SKIN

Mukti Arora

HOD , PG Department of Cosmetology

2 of 12

CONTENT

INTRODUCTION
VITAMIN D AND SKIN
SOURCE OF VITAMIN D
FUNCTIONS OF VITAMIN D
SOURCE OF VITAMIN D
REQUIREMENT OF VITAMIN D
BENEFITS OF VITAMIN D

3 of 12

VITAMIN - D

VITAMIN D IS A HORMONE, NOT A VITAMIN. THE SKIN IS RESPONSIBLE FOR PRODUCING VITAMIN D. DURING EXPOSURE TO SUNLIGHT, ULTRAVIOLET RADIATION PENETRATES INTO THE EPIDERMIS AND PHOTOLYZES PROVITAMIN D₃ TO PREVITAMIN D₃. PREVITAMIN D₃ CAN EITHER ISOMERIZE TO VITAMIN D₃ OR BE PHOTOLYZED TO LYMISTEROL AND TACHYSTEROL.

4 of 12

VITAMIN D & SKIN

Vitamin D is important for skin health because:

Helps maintain a protective barrier against sun damage
Regulates the cellular replication cycle, which helps prevent premature aging
Stimulates antioxidant defence to fight harmful free radicals
Promotes collagen production, which gives shape and strength to skin cells

5 of 12

SOURCE OF VITAMIN D

Sunlight is the cheapest source of vitamin D.

it converts 7- Dehydrocholesterol in the skin to vitamin D.

The richest sources are liver oils. Vitamin D is also present in smaller quantities in dairy products such as butter and eggs, milk has a very low content of vitamin D.

6 of 12

FUNCTIONS OF VITAMIN D

VITAMIN D HAS SEVERAL IMPORTANT FUNCTIONS:

PERHAPS THE MOST VITAL ARE REGULATING THE ABSORPTION OF CALCIUM AND PHOSPHORUS AND FACILITATING NORMAL IMMUNE SYSTEM FUNCTION .

GETTING ENOUGH VITAMIN D IS IMPORTANT FOR TYPICAL GROWTH AND DEVELOPMENT OF BONES AND TEETH, AS WELL AS IMPROVED RESISTANCE TO CERTAIN DISEASES.

7 of 12

ABSORPTION OF CALCIUM-

VITAMIN D PROMOTES THE ABSORPTION OF CALCIUM AND PHOSPHORUS FROM SMALL INTESTINE. THE ACTION OF VITAMIN D HELPS IN D.N.A. SYNTHESIS, TO FORM CALCIUM BINDING PROTEIN, ALPHA GLOBULIN AND IS INVOLVED IN CALCIUM ABSORPTION.

MAINTENANCE OF CALCIUM AND PHOSPHORUS LEVEL-

VITAMIN D MAINTAINS THE PROPER CONCENTRATION OF CALCIUM AND PHOSPHORUS IN BLOOD BY REABSORPTION OF PHOSPHORUS FROM THE URINARY TUBULES.

BONE FORMATION-

IT PROMOTES MINERALISATION OF BONES THROUGH ITS ACTION ON CALCIUM AND PHOSPHORUS METABOLISM AND ALSO BY A DIRECT ACTION ON THE BONE TISSUE.SO IT HELPS IN THE DEPOSITION OF CRYSTALLINE CALCIUM PHOSPHATE TO THE BONY MATRIX IN THE BONES.

FUNCTION OF VITAMIN D

8 of 12

DEFICIENCY OF VITAMIN

Vitamin D deficiency is associated with the risk of psoriasis and atopic dermatitis, and several clinical/observational studies have suggested the beneficial effect of vitamin D in the therapy of these 2 inflammatory skin disorders.

Skin Rashes
Skin Ageing
Acne

9 of 12