80.Restricted ingredients in cosmetic and skin care products

-
Image
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.
Post a Comment

52.surfactant_1

-
Surfactant
Surface tension
Interfacial tension
Solubilization

surfactant_1

 A surfactant is briefly defined as a material that can greatly reduce the surface tension of water when used in very low concentrations.
The surface of a material has the internal and external particles in a space. The interface will has two different phases. For example, the shape of a drop of water is spherical due to the interface of air and water separates the two substances and internal force of water pulls the surface particles of water. This phenomenon also happens to the immiscible liquids. It is called interfacial tension.

One substance that can help two materials like water and oils mix together also reduces the interfacial tensions. It is surfactant. The applications will be in cosmetics, detergents, and so on.    

--------------------------------------------------------------------------------------
help to find the specific skincare product ingredients by "skin+" App








Comments

  1. uiseannkagel09 November

    Electronic Table Games with selection of|quite so much of|a wide selection of} the preferred video games can be found 24/7. Lastly, avoid “gambler’s conceit,” which occurs when you’re up, half in} with winnings, or on a hot streak. You begin to think, “Maybe I ought to bet more since I’m doing so nicely,” and “Sure, I might stroll away with greater than I started with, but perhaps 1xbet I ought to see this through...” Bad concept.

    ReplyDelete

Post a Comment

Popular posts from this blog

80.Restricted ingredients in cosmetic and skin care products

-
Image
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.
Read more

71.UVA and UVB Sun protection factor

-
Image
UVA andUVB Sun protection factor SPF is Sun Protection Factor. The number is determined experimentally indoors by exposing human subjects to a light spectrum meant to mimic noontime sun.   The SPF number only relates to UVB protection.  UVA is measured by the other definition.  UVA protection is not measured through SPF numbers.  PA is the Japanese measurement of sun protection. It is one of protection grade of UVA  . UVA is based on the Persistent Pigment Darkening (PPD) reaction reading at 2-4 hours of sun exposure.  PA is a protective level of strength to mark the three PA+, PA++ and PA+++. SPF(sun protection factor) Standard: ISO 2444: 2010 cosmetic sun protection test method in vivo determination of SPF (sun protection factor) Test by erythema Minimal dose: MED (minimal erythema dose) Process: exposure to the UV (wave length 290-400nm) Test skin type: type I~ III (ITA 0 >28 0 ) Duration: 16-24hrs after exposure UVA-PF (UVA protection factor)
Read more

79.The roles of Vitamin in skin

-
Image
The roles of Vitamin in skin As we know, the chemical changes induced by exposure to sunlight, we should be able to design a cosmeceutical regime to combat photodamage and reverse its effects. Vitamin molecules are the options and have the functions of metabolism, antioxidant and preventing free radical. 1.       Metabolism Vitamin A controls the conversion of pre–matrix metalloproteinases secreted by keratinocytes and fibroblasts into active matrix metalloproteinases, but with a deficiency of vitamin A, UV irradiation stimulates the unimpaired release of metalloproteinases that then destroy collagen and the anchoring fibrils. Without vitamin A, the rete pegs become flattened. Lang erhans cells need vitamin A to function, but if the vitamin A is inactivated by light, then they cannot function properly and recognize cells whose DNA has been damaged. 2.       Antioxidant Deficiencies of vitamin C permit more free radical damage . The main action of vitamin C is as an
Read more