在evan healy对于这个成分的一些评价中这样说道:
Naturally occurring hyaluronic acid (HA) is a biopolymer that is found in greatest concentrations in the vitreous humor of the eye and in synovial fluid of articular joints. It is also found in the skin, connective tissue, etc.
As an aesthetician who prefers holistic and uncomplicated skin care, I tend to look at the skin from a unique perspective! I evaluate the effects of an oil or cream on the skin –vs- taking the nutritional substance internally: which has more value and effectiveness for skin health?
Generally, my opinion is many of these food-sourced or nutritional ingredients would be more effective if they were taken internally instead of smeared all over the skin…In other words: if you need potassium you don’t rub a banana on your arm.
I see many ingredients in skin care formulations that are useless when applied to the skin. Most of the time the molecules are way too large to penetrate the epidermal layer and if by chance they do, then what?
While the organ of the skin does interact with the organs of digestion, it’s not a stomach - it’s not able to break down and absorb nutrients the way our digestive system does. There are far more effective ingredients that will improve both the function - as well as appearance. Exercise, for instance, a walk around the block will Increase oxygen and blood circulation, so you’ll not only look better, you’ll feel better too!
HA that occurs naturally in the body (and therein lies the secret) acts as intercellular space filler and therefore may have anti aging effects, it supplies a plumping/lubricating action to skin tissue beneficially holding fluids like a reservoir around the cellular wall. But when applied as a product to the surface of the skin, well, I’ve never seen any significant short or long-term improvement.
Better to consider, for instance, adding nutritional plant oils (high in GLAs and EFAs) and/or fish oils (high in EPA and DHA) to the diet where they will be absorbed and assimilated into the body’s cells and other organ systems and where the effects will be both seen and felt.
Shea Butter, RoseHip Treatment and Pomegranate Repair Serum applied to the skin will also supply significant amounts of essential fatty acids, which have a more holistic and immediate value to the skin’s epidermal layer.
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