oil-in-water emulsions (O / W) can be produced most easily. Water-in-oil emulsion (W / O) and mixed emulsions (W / O / W or O / W / O) are considered as skin-friendly. The combination of sun (UV light), emulsifiers and preservatives seen as the main cause of skin irritation-type "Mallorca acne".
* Lotion (colloquially ( skin care -) "milk") contains more water than creams.
Gel: gel former and often alcohol-water mixture, must be preserved because of the water content in most cases. In contrast to the hydro-gel is water-free lipo-gel without drying alcohol. In addition, in Lipo-Gel active ingredients are combined in conventional gels can not be processed together as they are active at different pH values (eg calcipotriol and betamethasone in psoriasis). The reason: the water-free lipo-gel pH plays no role.
* Sun cream, sun lotion, sun gel: cream, lotion or gel with "chemical" UV filter substances or "physical" sunscreen with zinc oxide (or other oxides) as active ingredients. Some "chemical" UV filter substances easily develop estrogen-like (hormone-like) effects.
* solution: mixed-phase, uniform homogeneous mixture of different substances. For example, alcohol is the (azeotropic) aqueous-alcoholic mixture of 96.5% Ethanol and 3.5% water.
"colloidal solutions" are mixtures of particle sizes from ~ 1000-1000 nm, which separate out after a while and are two-phase (colloidal). Emulsifiers to prevent this segregation. Examples: creams, milk (sour and Lab disturbs the emulsifier)
* Oil bath: The (fragrant) oil is added to the bath water. It is formed on the skin a caring (fragrant) oil film.
distinction lotion and lotion
Contrary to the manufacturers of skin care products often synonymous use of the terms referred to the term "lotion" a shaking, then the solution of solid components in a fluid (liquid powder). (See lotion and lotion)
0 comments:
Post a Comment