Effect of Vitamin A on the Growth of Hair and Nails

Vitamins and minerals like vitamin E, zinc, and iron may aid hair growth, especially in cases of deficiency. Pumpkin seed oil, saw palmetto, horsetail, and AminoMar show some promise for improving hair health and count.

A user improved their hair health by taking 50,000 IU of vitamin D3 weekly due to a deficiency. Others discussed the potential link between vitamin D and hair growth, with some sharing similar experiences and emphasizing the importance of monitoring vitamin D levels and consulting with doctors.

A user experienced significant hair regrowth after improving their diet, getting sunlight, taking a multivitamin, and exercising, following a period of extreme calorie restriction and hair shedding. Others in the conversation attribute the hair regrowth to increased calorie intake rather than just vitamins.

Low vitamin D levels can negatively impact hair growth, and supplementing with vitamin D, along with treatments like finasteride and minoxidil, may help improve hair health. Quitting smoking and ensuring adequate vitamin B12 and K2 intake are also suggested to support hair regrowth.

Betacarotene's effect on hair loss is discussed, with concerns about excessive vitamin A. The user also questions if 15mg melatonin impacts vitamin A levels.

The conversation discusses using topical vitamin C in shampoo or serum for hair growth and thickness. The user mentions using the Nioxin system to maintain thick hair and is curious about the effects of vitamin C on hair growth.