How do absorption act in the skin ?
How do absorption act in the skin ?

Most
of cosmetics take effect through the gap of keratinocytes. The effect depends
on ingredients. So adding cyclopentadecanone and cyclopentadecanolide in
cosmetics to help penetration is the ways nowadays.


Ref. B.W. barry, the transdermal
route for the delivery of peptides and proteins, plenum press new Yord 1986
We care about the absorption after
applying skincare products and cosmetics, especially the cosmeceuticals (cosmetics+pharmaceuticals).
We call it “percutaneous absorption”.
percutaneous
absorption has 3 ways
1. Go
through the hair and sweat pores
Most of
the medicines and few cosmetics
2. Through
gap of keratinocytes
Most of cosmetics
3. Pass stratum corneum and go to the deeper layers of epidermis
Only the small molecular weight of substance could pass, such that
most of cosmetics cannot pass.

Ref. B.W. barry, the transdermal
route for the delivery of peptides and proteins, plenum press new Yord 1986
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help to find the specific skincare product ingredients by "skin+" App
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