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Nicotinamide (INN, BAN UK [2]) or niacinamide (USAN US) is a form of vitamin B 3 found in food and used as a dietary supplement and medication. [ 3 ] [ 4 ] [ 5 ] As a supplement, it is used orally (swallowed by mouth) to prevent and treat pellagra (niacin deficiency). [ 4 ]
Other symptoms to note: This rash is itchy and can cause hair loss when it occurs on the scalp. The same fungus can also cause athlete’s foot and jock itch. The same fungus can also cause ...
It can also affect other parts of the body. Dr. Thosani says the scalp is the most affected by psoriasis, but the elbows and knees can experience symptoms as well. ... hair. Dr. Thosani says ...
She adds that you want to look for key ingredients such as keratin, collagen, amino acids, hyaluronic acid, vitamin E, and niacinamide (B3), which can support hair, nails, and skin.
As it is often the result of scratches, involving contact with other materials, it can be confused with an allergic reaction, when in fact it is the act of being scratched that causes a wheal to appear. These wheals are a subset of urticaria (hives), and appear within minutes, in some cases accompanied by itching. The first outbreak of ...
Some are available without prescription, such as niacinamide, [15] [16] l-ascorbic acid, [citation needed] retinoids such as tretinoin, [17] or cysteamine hydrochloride. [ 18 ] [ 19 ] Hydroquinone was the most commonly prescribed hyperpigmentation treatment before the long-term safety concerns were raised, [ 20 ] and the use of it became more ...
Similarly, lichen sclerosus is a patchy white rash that causes intense itching in your genital area (though it can appear on other parts of the body, too). People in their 40s and 50s are most ...
A man with pellagra, which is caused by a chronic lack of vitamin B 3 in the diet. Severe deficiency of niacin in the diet causes the disease pellagra, characterized by diarrhea, sun-sensitive dermatitis involving hyperpigmentation and thickening of the skin (see image), inflammation of the mouth and tongue, delirium, dementia, and if left untreated, death. [7]