80.Restricted ingredients in cosmetic and skin care products

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Restricted ingredients in cosmetic and skin care products by regulation. Ingredient Potential toxicity Hexachlorophene Neurotoxic effects Ability to penetrate human skin Mercury compounds Accumulation in the body Skin irritation Allergic reactions Neurotoxicity Bithionol Photocontact sensitization Halogenated salicylanilides Photocontact sensitization Chlorofluorocarbon propellants Hazardous to human health Chloroform Plausible carcinogenicity Vinyl chloride Plausible carcinogenicity Zirconium-containing complexes Lung toxicity Methylene chloride Plausible carcinogenicity help to find the specific skincare product ingredients by "skin+" App.
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09-.What is skin? epidermis(1)

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What is skin? epidermis(1)

The skin has three layers. They are epidermis, dermis and subcutaneous tissues

Epidermis
l   Bricks and mortar model
l   The outer skin with many layers
l   95% of the structures are consisted of cells
l   Repeat constructive and destructive metabolisms
l   Excrete substances from the sweat glands and sebaceous glands

Thickness
Different positions have different thickness in epidermis. The average thickness is 75~150um. The stratum corneum is around 10-70um and the stratum spinosum is around 40-150um.

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