Brownish-black or ebony-black.

It is in the form of a neat rectangular block, usually about 8.5 centimeters long, 3.7 centimeters wide, and 0.7 or 1.5 centimeters thick. The surface is brownish black or blackish, smooth and glossy. Slightly transparent to light. The texture is brittle and fragile, the section is brownish black or black, smooth and glossy. Gas faint, taste slightly sweet.

Mainly produced in Shandong, Zhejiang. Shandong producers are the most famous, the largest production in Zhejiang. In addition, Shanghai, Beijing, Tianjin, Wuhan, Shenyang and other places also produced.

Effects and functions of Colla Corii Asini

1, the brain: Colla Corii Asini contains a variety of active ingredients can ease the tension of learning, so that the brain and the whole body to get enough rest, is conducive to improving physical fitness, strong body and strong God, energetic. Colla Corii Asini contains small sub active peptide, can enhance the body's memory and improve the ability to recognize, have a strong anti-fatigue effect.

2, relieve aging: Colla Corii Asini contains collagen, collagen, protein to a variety of trace elements, a variety of amino acids. These are important substances for human nutrition, have obvious anti-aging, prolong life.

3, strong muscles and bones: Colla Corii Asini replenish blood, blood can nourish tendons, fluid can lubricate the joints, enrich the bone marrow, spinal cord, brain marrow, so it can be strong and healthy bones, fluent joints, against rheumatism damage.

4, improve immunity: Colla Corii Asini has a good therapeutic and preventive effect on those who are old and weak, chronically ill and weak, prone to colds and other decreases in physical fitness, so that the immune system is strengthened and the number of diseases is reduced.

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