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Molecular weight < 500 Da can be absorbed into skin
incredient that has less than 500 Da molecular weight can be absorbed to skin.
Hyaluronic acids medium, small and very small have molecular weight > 500 Da. Therefore they can not be absorbed to skin? But, it works well on the skin.
why? I appreciate all answersThank you so much and have good weekend.
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3 Replies
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It’s a good humectant on the upper layers of the skin
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Molecular weight is only one factor that determines if a particular ingredient can penetrate the SC. The super low molecular weight HA does indeed penetrate with the optimal being 200 kDa for HA.
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@Perry, @MarkBroussard
Thank you so much ????!
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