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What Is It: Galactoarabinan

July 6, 2008 Reviewed by Marta 1 Comment
I was given a sample of Elemis' Pro-Collagen Quartz Lift Serum and promptly went off on something of a wild goose chase to discover a relationship between quartz and anti-aging. It turns out that this serum contains rhodochrosite extract, which is a pretty rose colored quartz that has UV protecting properties. A useful thing, but not all that interesting. On a whim, I turned my attention to another ingredient on the list: galactoarabinan. Now I was on to something.

Galactoarabinan, abbreviated to GA by botanist types, is a polysaccharide extracted from larch trees. One of its properties is that it reduces particle size, which helps ingredients disperse and, in doing so, can improve the SPF properties of a product with sunscreen. However, it turns out to be much more interesting than this.

GA boosts the immune system and is recognized by the FDA as a source of dietary fiber. Studies have shown it can minimize fine lines, perhaps because it acts as a gentle exfoliant and inhibits moisture loss.

There has been at least one study on inhibiting moisture loss: a 2% concentration of GA on a sample of 21 people. A separate test on 31 people demonstrated that it can exfoliate without irritation: a 5% concentration of GA performed better than 8% lactic acid. This multi-tasker also did well in tests to see if it will irritate human skin.
  • July 8, 2008

    by Jo

    <p> Very interesting! It's also the second ingredient in Nude Skincare's Miracle Mask.</p>

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