Hyaluronic Acid is super popular in skincare. Everyone knows that it serves to attract and bind moisture from the surface of skin and transport it into it. The relevance is in that as of age 30 our own production of it slows down, so far that by age 40 your own production is at around 40% of what it was. Skin which contains a lot of hyaluronic acid looks plump (along with other factors such as collagen etc..). Adding hyaluronic acid to your skin helps plump the appearance of fine lines.
As understanding of skincare ingredients increases, and layering skincare becomes more popular, more and more manufacturers are churning out hyaluronic acid products, but not all are equal, in fact some can be really bad. Hyaluronic Acid comes in different molecular weights. The higher the weight (i.e. the larger the molecule) the less able it is to penetrate into the skin, molecules this size stay in the upper layers. There they can bind moisture from the air etc into the skin, but they can also draw moisture out from the skin. This is the exact opposite of what you want and helps explain my dislike of products such as By Terry’s Hyaluronic Acid Face Powder. Skin will feel moisturized and may look plumped, but deep down it’s not happy.Molecules with a lower weight penetrate deeper into the skin and molecules with a very small weight that can travel deep into the skin can be combined with chemicals that actually promote natural hyaluronic acid production. Your ideal Hyaluronic Acid product will have molecules with high, medium and low molecular weight. Typically these products are not the no-name products popping up on Amazon.