Since hyaluronic acid holds moisture well--holding
up to 1,000 times its weight in water--it is a commonly used component
in moisturizers. In these moisturizers, it functions not only to deliver
water to the skin, but also to hold it there. As a large molecule, it
doesn't permeate deep into the skin, but instead stays near the surface
where it moisturizes the skin surface layers.
The loss of natural hyaluronic acid is one of the
causes of wrinkles, so the idea of putting HA back into the skin to
repair wrinkles makes sense. Hyaluronic acid fillers are useful for
reducing or removing wrinkles. By reducing wrinkles, hyaluronic acid
fillers make the skin look younger and increase skin tone, making it
look smooth and supple.
Hyaluronic acid based products are considered
highly safe, especially those made from synthesized HA, which is made in
bacteria instead of using human or animal tissue. There are few
allergic reactions or side effects involved with using hyaluronic acid,
though some people may experience mild, temporary redness or swelling
after an injection.
Hyaluronic acid injections last longer than
collagen injections. Injected HA fillers typically last four to six
months, causing a reduction in wrinkles and an increased plumpness to
the dermis during this time. Since topical products with HA cannot
penetrate to deeper layers, the moisturizing effects from these will
only last a few days. Repeated use will maintain moisture levels in the
skin, preventing skin dehydration.
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