Hyaluronic acid, also known as hyaluronic acid, is colorless and odorless. It is a transparent gel with high viscoelasticity, water retention and lubrication. It is widely found in animal tissues and human tissues. Animal tissues such as: cockscombs With bull's eye lens.
Hyaluronic acid in the human body mainly exists in the skin, connective tissue and nerves. Hyaluronic acid plays different roles in different parts. For example, in the skin, the main function of hyaluronic acid is to absorb water, so that the skin can produce sufficient fullness, elasticity and thickness. Because it has strong water-absorbing and moisturizing capabilities, is non-toxic and does not cause allergies, and is naturally decomposed and absorbed by the human body, it was initially added to skin care products and later developed as a treatment for injecting it into the skin.
The source of hyaluronic acid can be extracted through microbial or chemical methods, such as fermentation and extraction using Streptococcus and Lactococcus, or synthesis using polysaccharide polymers. Since hyaluronic acid is a sugar molecule, purification steps will be used to eliminate bacteria and other harmful substances before extraction. Necessary substances, coupled with the high biocompatibility of hyaluronic acid, it is safer to use and will not cause allergic reactions.
The water content of the surface layer of human skin is about 15 to 30%. If it is less than 15%, it will cause dryness and peeling; if it is more than 30%, it will feel sticky. When hyaluronic acid acts on the inside of the skin, it acts like a humidity regulator, helping the skin to The moisture content is maintained between 25 and 30%, keeping the skin moist, fresh and elastic.
From 0 to 20 years old, the content of hyaluronic acid in the human body is 100% to 80%. As age increases, hyaluronic acid will gradually decrease. By the age of 60, the content of hyaluronic acid will drop to 25%, causing the skin to lose elasticity. Regular supplementation of hyaluronic acid can help the skin retain moisture and maintain skin elasticity and moisture.
Although hyaluronic acid is highly stable and does not easily cause skin rejection, it may sometimes cause skin discomfort depending on personal constitution. Therefore, it is recommended that friends who want to use hyaluronic acid skin care products can apply it on the inner arm before use to test whether there is any discomfort on the skin.