Vitamin A – complete instructions for use: description, function, dosage, sources.

Vitamin A - instructions for use

Vitamin A (retinol) is a fat-soluble vitamin. Along with vitamin E, it is considered a powerful beauty vitamin because:

  • stops the development and eliminates inflammation (both external and internal);
  • participates in the regeneration process;
  • stimulates metabolic processes in cells.

Vitamin A application

Besides, without the proper level of vitamin A in the body, there may be deterioration of vision, the appearance of women's menstrual irregularities, as well as problems with reproductive health.

Vitamin A is important for maintaining the health of the body's mucous membranes. This substance stimulates the production of mucus, which prevents this thin and delicate shell from drying out.

As for the immune system, vitamin A is actively fighting bacteria, viruses and other pathogens diseases, supports the health and youth of the body, makes the skin supple and smooth. Vitamin increases the protective power of interferons in the immune system, which fight against pathogens. First of all, they protect the thymus and thyroid glands from the harmful effects of free radicals.

Vitamin A application

It Should be remembered that vitamin A accumulates in the liver and a constant long-term intake of this substance can be toxic.

The Daily rate for men is from 700 to 1000 µg, for women – from 600 to 800 µg, for lactating women – 400 µg higher than normal, for pregnant women – 100 mcg above normal.

Vitamin is Best absorbed with oil (fat), it is not soluble in water. In the process of heat treatment of food, up to 35% of retinol is lost. Keep this in mind when cooking.

Vitamin E increases the absorption of vitamin A, and vitamin A has a beneficial effect on zinc absorption, so vitamins E and A are recommended in combination, as they are interdependent.

Vitamin A in gelatin capsules is the most convenient and common form for use.

Vitamin A – where and in what products contains

Vitamin A is found in vegetable products: carrots, dandelion, dried rose hips, tomatoes, apricot, pumpkin, pepper, parsley, green salad, green onions, broccoli, sorrel, viburnum, dill, melon, peaches, butter.

Vitamin A is abundant in dairy products, egg yolk, beef liver, caviar, fish oil, margarine.

Vitamin A Deficiency or excess

Lack of substances in the body can develop night blindness – slow visual reaction, in the twilight a person sees objects blurred. Also occurs dry hair and skin, insomnia, weight loss, acne appear. The sensitivity of tooth enamel increases, immunity decreases, respiratory infections often occur. In children, possible violations of the growth process.

Symptoms similar and when hypervitaminosis. With an excess of the substance in the body, there is an increased fragility of hair, nails, the appearance of headache, joint pain, gastrointestinal disorders. There may be diarrhea, bleeding gums, depression. Women have violations menstrual cycle, and with a long overdose, sometimes menstruation stops altogether.

Instructions: Vitamin A for face

Vitamin a is most prevalent in the age makeup. It prevents the appearance of pigmentation, prevents photoaging, increases elasticity and firmness of the skin, promotes the production of collagen.

The Substance quickly penetrates the skin through the sweat and sebaceous glands and after a short period of time seeps into the deeper layers. That is why vitamin A is widely used in cosmetics.

Remember, that the most favorable sometimes for cosmetics with bones of vitamin A is cold time year. Over the winter, retinol perfectly smooth wrinkles and restore skin cells damaged by the sun.

Mask with vitamin a and also creams it is best to apply before bedtime. This is due to the fact that it is early in the morning and at night there is an enhanced process cell division, and for intensive anti-aging effect the highest concentration of vitamin A in the tissues should be in this period.

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